JP2011009198A - Led lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting device with excellent effects never realized before.SOLUTION: The lighting device (10) includes LEDs (11) to be a light source, board circuit parts (12) of the LEDs (11), light source units (13) enlarging the diameter of light irradiated from the LEDs (11), yet restraining diffusion of light and converting into a light flux as a flux of light, and a light-flux projecting reflecting plate (20) for projecting the light flux irradiated from the light source units (13), and a decorative plate (14) to be an outer package part of a light-emitting face of the lighting device (10). One or two pieces of the light source units (13) are installed on one side or on an upward extended line of a plurality of sides of the light-flux projecting reflecting plate (20), so that the light flux irradiated from the light source units (13) is to be a full-face light-incident angle (a) incident into a whole face of the reflecting face (21) of the light-flux projecting reflecting plate (20). The light-flux projecting reflecting plate (20) includes a rugged shape (30) with a linear light-flux direction cross section and a curved lateral direction cross section for diffusing the light flux irradiated from the light source units (13) in uniform controlled light toward the decorative plate (14).

Description

  The present invention relates to a lighting device using LEDs.

As for LED, a lighting device using LED is often used as a global warming countermeasure product that can save energy compared with incandescent lamp and fluorescent lamp.
Among these, Patent Document 1 discloses a light emitting part formed on the light emitting side of the light emitting element, a second light emitting part formed adjacent to the first light emitting part, a first light emitting part, It was formed between the light emission part arranged so as to oppose the first light emission part and the second light emission part, the first light emission part, the second light emission part, and the light reflection part. A light guide unit, the first light emitting unit includes a light diffusing agent that diffuses at least a part of the light from the light emitting element, and at least the light from the light emitting element by the light diffusing agent of the first light emitting unit. Since a part of the light is diffused, the luminance on the light emitting surface of the first light emitting unit can be decreased, and the luminance of the second light emitting unit can be increased. .
It is possible to arrange the thinned lighting device on the bottom of the rear surface of the large lighting device to form a lighting unit, but the number of light emitting elements to be arranged increases and is not suitable for energy saving.

Patent Document 2 is composed of a light source plate and an LED light source installed opposite to the light introduction part of the light guide plate end face, and in addition, a prism sheet installed on the light emission surface of the light guide plate. Is provided integrally with the light guide plate and has a lens for diffusing the light emitted from the LED light source, and a knurling composed of a plurality of grooves parallel to the light introducing portion is provided on the surface of the light guide plate facing the light exit surface. The prism sheet has a substantially prismatic shape with a substantially triangular cross section on the light guide plate side, and a prism shape in which one side of the substantially triangular shape is a curved line. A combination of the formed prism sheets enables surface light emission in the light guide plate.
However, in the light guide plate method, the light emitted from the LED is spread laterally by the diffused lens to reduce the shadow difference of the introduction part, but the LED surface introduces light parallel to the light guide plate introduction part. Therefore, it is diffusive irradiation by LED and diffusing lens, and the height of the plurality of grooves provided in the light guide plate is also low, which is suitable for small liquid crystal screens. It is necessary to obtain the illuminance by arranging the light guide plate, and the thickness of the light guide plate increases due to the increase in size.

Patent Document 3 discloses a box having an open front surface, at least two wiring boards arranged in parallel to each other in parallel with the side wall of the box, and a plurality of light emitting elements installed on the wiring board, A light box comprising a light reflecting plate disposed at the bottom of the box and a translucent light diffusing surface plate installed at the front opening of the box, wherein the light reflecting plate is opened at the front of the box And a distance between the bottom of the box and the lowest part of the light emitting element of the light emitting element, and a distance between the bottom of the box and the light diffusion surface plate. The light box is characterized by satisfying “h <L ≦ (h + d) / 2”, where L is the distance between the bottom of the box and the apex of the mountain-shaped convex portion.
It is possible to use a structure that fits this formula as a small light box using a light-emitting element with a cannonball-shaped conical diffuse reflection. Not suitable.

In Patent Document 4, a light reflecting member is disposed on the bottom surface of a case, a light emitting surface member is disposed on the front surface side, and a space sandwiched between the light reflecting member surface and the light emitting surface member is defined as a hollow light guide plate region. An LED light source in which a large number of LEDs are arranged on the wiring board is arranged adjacent to the light plate region, and the light from the LED light source is condensed so as to be parallel to the LED optical axis in the thickness direction of the unit. A hollow surface illuminating device in which a collimator is arranged in parallel with an LED array on an emitting part of an LED light source, and the LED collimator has a refractive condensing function unit that refracts light from the LED array and introduces or emits it into the body. It is an illuminating device provided with a total reflection condensing function part that totally reflects light introduced into the body and emits it to the hollow light guide region.
The light guide plate system eliminates the need for the acrylic part of the light guide plate and achieves weight reduction, but the light uses an integrated collimator, which eliminates the shadow difference in the light introduction part. It is not suitable for a structure that stretches.
Further, since the reflecting plate is smooth, the light emitted from the LED has to be diffused and adjusted using a lens sheet and a prism sheet in order to irradiate in a direction proportional to the incident angle of the total reflecting plate and eliminate the shadow difference.

Patent Document 5 discloses an embossed plate made of an aluminum alloy having excellent formability. This embossed plate has improved formability such as press molding without degrading the properties of the embossed plate, and greatly expands the use of aluminum alloy embossed plates for transportation equipment, etc. It is.
This embossed uneven shape (corrugated shape) is used for parts of transport equipment (for example, transportation converters such as automobiles, catalyst converters, exhaust guide parts around mufflers, transmission parts, engine mounts, etc.) It may be excellent as a cover (shielding material) called a heat insulator for sound and a sound insulation or cushioning material provided inside an outer panel material such as a hood, a roof, or a door. However, the concavo-convex shape of the embossed plate is not suitable for light reflection because the crest portion is relatively flat (see FIGS. 1B and 2).

JP-A-2005-197320 Japanese Patent No. 4044511 JP 2006-202729 A Japanese Patent Laid-Open No. 2008-60061 Japanese Patent Laid-Open No. 2002-60878

As described above, there are many illumination devices that use LEDs, but they also have various problems. In summary:
[Direct type]
Although the target illuminance can be obtained by arranging the LEDs directly under the light emitting surface, a large amount of LEDs will be used for the large illuminating device, and even if a three-dimensional reflector with a wall structure is provided, it is sufficient compared to a fluorescent lamp Energy saving effect cannot be obtained. A method of diffusing and irradiating with a high-brightness LED and a reflector is also being studied. However, since a large number of high-brightness LEDs are used, cost reduction cannot be realized.
[Light guide plate]
The cost of acrylic used for the light guide plate is high. In addition, since it has an acrylic light guide and reflection function, it is necessary to form and process the light-receiving / reflecting part of the acrylic plate, or to form a single piece at the time of manufacture, and the number of parts of the diffusion sheet and prism sheet is large. Although the design is excellent, the initial cost is significantly high.
[a reflector]
The flat reflector, although the light trace of the incident light appears, the light irradiated at an obtuse angle is reflected in the same obtuse angle direction proportional to the incident angle, and the illumination device has insufficient illuminance. When irradiating only with LED, since the uniform arrival distance of a reflecting plate is also short, length is few. Although it is effective as a small lighting device, it is not suitable as a large lighting device.
[Horizontal light irradiation type]
Even if a lens that condenses the light from the LED is used and the lens surface is installed at a right angle to the reflector, and the lens is naturally diffused, the light at the center irradiated by the straight line that is the characteristic of the LED is diffusely reflected. Even if a reflector is provided at the end, the medium illuminating device has a very large shadow difference and a diffusion plate must be provided on the surface facing the reflector.
[Angle of reflecting member]
Although it is possible to study a method of improving the light receiving rate of the unevenness provided on the light trail lighting reflector by providing an angle to the entire lamp reflective surface provided in the apparatus, a reflective member that does not provide uneven formation that suppresses regular reflection is If the light arrival point becomes narrow, the specularly reflected light will not be used in combination with the diffuser, and the light will be specularly reflected in the direction of line reflection, making the surroundings of the opposite side of the light source unit bright and forming a uniform lighting surface I can't.

The present invention has been completed by the present inventors in order to achieve the following object.
(1) It can correspond to a long lighting device.
(2) It is possible to cope with a large illuminating device having a wide width by continuing the long length.
(3) The number of LEDs can be reduced as much as possible to save energy.
(4) Since high illuminance can be obtained even if the current consumption of the LED is small, energy saving can be achieved.
(5) The performance of the high-intensity LED can be used at a low output, and high illuminance can be obtained, so that the life of the LED can be extended.
(6) Applicable to existing lighting devices.
(7) The weight can be reduced.
(8) The number of structural parts of the lighting device is very small, and the cost of the device can be reduced.
(9) It can cope with high brightness of LED.

In order to achieve the above object, according to a first aspect of the present invention, in an illumination device (10) that emits surface light from a point light source emitted by an LED, the LED (11) that is a light source and the LED (11) are turned on. Board circuit part (12) provided with a circuit for the substrate, and a function of expanding the light emitted from the LED (11) and converting the light into a luminous flux as a bundle of light by suppressing the light diffusion A light source unit (13) composed of a lens or / and a reflector, a luminous flux reflection plate (20) for projecting the luminous flux emitted from the light source unit (13), and an exterior part of the light emitting surface of the illumination device (10) A light-transmitting decorative plate (14), and the light source unit (13) is installed on one or more upper extended lines of one side or a plurality of sides of the luminous flux reflector plate (20), and The light beam emitted from the light source unit (13) is reflected on the entire reflecting surface (21) of the light flux lamp reflector (20) on the light source unit (13) side. The light flux lighting reflector (20) is installed so as to have a full light incident angle (a) for incident light, and the light flux illuminating reflector (20) has a linear cross section in the light flux direction, and the luminous flux emitted from the light source unit (13) The LED illumination device (10) is characterized in that it has a concavo-convex shape (30) for scattering light uniformly controlled to (14).
According to a second aspect of the present invention, in a lighting device (10) for emitting light from a point light source emitted by an LED, an LED (11) serving as a light source and a circuit for lighting the LED (11) are provided on a substrate. Light source comprising a substrate circuit unit (12) and a lens and / or a reflector having a function of expanding the light emitted from the LED (11) and suppressing the diffusion of the light to convert it into a light flux that is a bundle of light A unit (13) and a luminous flux lamp reflector (20) for illuminating the luminous flux emitted from the light source unit (13), the light source unit (13) is one side of the luminous flux reflector (20) or One or two or more are installed on the upper extension line of multiple sides, and the light beam emitted from the light source unit (13) is reflected on the entire reflecting surface (21) on the light source unit (13) side of the luminous flux reflector (20). Installed so that the incident angle (a) of the entire surface is incident, and the luminous flux reflector (20) has a linear cross section in the luminous flux direction. In addition, the LED illumination device (10) is provided with a concavo-convex shape (30) for scattering the light beam emitted from the light source unit (13) with light uniformly controlled in a target irradiation direction. .
According to a third aspect of the present invention, there is provided the LED illumination device, wherein the light flux lamp reflector (20) has a reflective surface having a white color, a color color system other than a white color system, or a mirror surface color made of silver or gold. (10).
According to a fourth aspect of the present invention, the luminous flux lamp reflector (20) has a concavo-convex shape (30) having a continuity formed in a linear or / and dotted or non-geometric pattern. LED lighting device (10).
According to a fifth aspect of the present invention, there is provided the LED lighting device (10), wherein the luminous flux reflector (20) has a reflective surface (21) on one side or both sides and has a concavo-convex shape on the reflective surface (21). It is.
According to a sixth aspect of the present invention, the luminous flux lamp reflector (20) has a light transmitting property that includes a hole (22) in the reflecting surface (21), and the hole (22) has an uneven light receiving surface. The LED illumination device (10) is characterized in that a light introduction body (60) is fitted therein.
According to a seventh aspect of the present invention, there is provided the LED lighting device (10), wherein the luminous flux lamp reflector (20) includes a curved surface (24) having a curved shape that swells in a lateral width direction intersecting the luminous flux direction. is there.
According to an eighth aspect of the present invention, there is provided the LED illumination device (10), wherein the luminous flux reflector (20) includes a flat fixed surface (25) symmetrically in the light beam direction of the curved surface (24). It is.
A ninth aspect of the present invention is the LED lighting device (10), wherein the luminous flux reflector (20) includes an upright portion (26) in which both right and left ends of the luminous flux direction are raised.
According to a tenth aspect of the present invention, the luminous flux lamp reflector (20) includes an auxiliary piece (27, 28) in which the tip of the upright portion (26) is bent outward. It is.
An eleventh aspect of the present invention is the LED lighting device (10), wherein the light source unit (13) has an irradiation angle within 15 degrees.
According to a twelfth aspect of the present invention, the luminous flux lamp reflecting plate (20) includes a planar reflecting surface (82) planar in the lateral width direction intersecting the luminous flux direction, or a circular or elliptic reflecting surface (24) curved in a concave or convex shape. The LED illumination device (10) characterized by comprising:
According to a thirteenth aspect of the present invention, the luminous flux lamp reflecting plate (20) includes a circularly or elliptically reflecting surface (24) curved in a concave shape, and a cylindrical shape (cylindrical shape) having a light transmission property in part or all thereof. The LED lighting device (10) is characterized in that the LED lighting device (10) is installed in the case member or attached to a mounting member having optical transparency in part or all thereof.
A fourteenth aspect of the invention is the LED lighting device characterized in that the inside of the LED lighting device (10) has a sealed structure.
A fifteenth aspect of the present invention is the LED lighting device characterized in that the LED lighting device (10) is structured to be rotatable in the circumferential direction.
According to a sixteenth aspect of the present invention, the light source unit (13) includes a dimming member for attenuating light directly emitted from the light source unit (13) to the decorative plate (14). Illumination device (10).
A seventeenth aspect of the invention includes a reaching reflector (40) that re-reflects the light emitted from the light source unit (13) to the opposite side of the luminous flux lamp reflector (20) to the luminous flux reflector (20). This LED illumination device (10) is characterized by the above.
An eighteenth aspect of the present invention is the LED lighting apparatus according to the sixteenth aspect of the present invention, wherein the LED lighting apparatus (10) is connected so that the arrival reflectors (40) are back to back.
According to a nineteenth aspect of the present invention, the LED lighting device (10) according to the sixteenth aspect of the present invention is characterized in that the light source unit (13) and the reaching reflector (40) are connected back to back. Device.
In a twentieth aspect of the invention, the light source unit (13) is configured so that a part or all of light in the upper half from the center line of the light beam conically irradiated from the light source unit (13) The LED illumination device (10) is characterized in that the LED illumination device (10) is installed at an angle at which the lower portion or the central portion is irradiated.

The first invention has the following effects.
(1) Since about 80% or more of the light beam irradiated in a straight line (about 20% is free scattered light) can be irradiated onto the light flux lamp reflector serving as the surface emitting surface, the light irradiated from the LED ( LED light) can be used with high efficiency without waste.
(2) By converting the light emitted from the LED into surface light emission (light flux), and irradiating this light flux from the low position calculated on the light flux lamp reflector to the light flux lamp reflector at a full incident angle (obtuse angle). Light with strong luminous flux strikes the luminous flux lamp reflector obliquely, leaving the luminous flux on the uneven reflecting surface (light receiving part) formed on the luminous flux lamp reflector, and the luminous flux that is regularly reflected on this irregular projection It is provided as a light source, and it uses the light of LED with limited initial cost and running cost, which has never been seen so far, with very few electricity consumption, few LED light emitting parts and few parts. A low-cost lighting unit can be provided.
(3) By forming a concavo-convex shape that specularly reflects the light beam irradiated from the light source unit to the decorative plate on the luminous flux reflector plate, the concavo-convex reflective surface is reflected in the shadow (regular reflection) and irradiated from the light source unit. The light can be controlled and reflected to the decorative board efficiently.
(4) Even if LEDs with different colors due to differences in the color temperature (Kelvin) of the LEDs themselves that are difficult to sort are arranged on the light source unit, by using the luminous flux reflection method of the present invention, the illuminance visually recognized from the decorative board is The difference in color temperature becomes invisible, and it becomes unnecessary to carefully select the LEDs, and uniform light can be provided. Further, the cost can be reduced by eliminating the need for sorting.
(5) When lighting with a lighting unit of 700 mm × 450 mm × 70 mmt with a brightness of 3000 Lx, it is possible to deal with irradiation from a light source unit of one side (side of 450 mm) with respect to a 700 mm luminous flux shadow reflecting plate. In this case, the current consumption is 250 mA and the current consumption is 9.12 w when twelve LEDs having a forward current of 750 mA are arranged. When the number of LEDs is reduced to eight, the current value is 400 mA, the current consumption is 14.6 w, and the lighting device can be lit with a very small current consumption. By using an LED with a forward current of 750 mA at a current value of half or less, not only the electricity consumption is reduced, but also the lighting life of the LED itself is greatly extended. In addition, the use at a low current reduces the use conditions of the heat dissipation substrate, and can provide a lighting device capable of reducing the number of LEDs and drastically reducing costs.
(6) When used in general home / office lighting, the minimum brightness of about 10000Lx can be obtained by providing a light source unit on two opposite sides and setting the current value to 500 mA in the case of the above dimensions. It becomes. When higher brightness is required, by using a heat dissipation board, the illuminance is improved by setting the current value to 750 mA, but the difference from the fluorescent lamp with an inverter is reduced, but the introduction cost and running cost are reduced. Can be resolved at an early stage.
(7) When irradiating light from the light source unit from a single direction of only one side of the luminous flux shadow reflector, the ratio of the light receiving part to the shadow part on the side or face of the projections and depressions on the concave and convex portions is set to the side or surface of the light receiving part. By making the shape to increase the area, the light receiving area of light flux reflection can be increased.

The second invention has the following effects.
(1) It is possible to irradiate directly in the target irradiation direction without lowering the brightness due to the light beam irradiated from the light source unit below the natural attenuation value.
(2) It is effective when the luminous flux reflector is a mirror surface type. That is, the mirror surface type has good reflectivity, and the luminous flux can be visually recognized as a streak. Therefore, even if there is a decorative board, the contrast (shadow difference = unevenness) becomes clear, but excellent illuminance can be obtained.

According to the third invention, the following effects are obtained.
(1) The luminous color of the lighting device can be selected by selecting a white light system, a color system other than white, or a mirror surface system made of silver or gold (having a regular reflectance of 60% or more) as the luminous flux reflector. By easily coloring (controlling), the color of the light reflected by the luminous flux reflector can be controlled.
(2) When obtaining brightness with the LED element, an LED with a high luminous flux (lumen) value and an LED with a high color temperature (Kelvin) value are selected. However, when these high-value LEDs are selected, the white light unique to the LED is obtained, and it is visually recognized as cold white light with the familiar sight of fluorescent lamps. Even if the LED has a high luminous flux (lumen) value and the LED has a high color temperature (Kelvin) value, the light that is visible from the protective plate having white transparency due to the color of the luminous flux reflector reflects the protective plate. Even if it is white, it is shaded by the color of warm color light (warm white), and when used in a fluorescent lamp alternative lighting fixture, it is possible to prevent the feeling of coldness of the LED used.
(3) Red / blue colored light using LED as a light source can be effectively used for raising seedlings at low cost as seedling raising light.

The fourth invention has the following effects.
(1) An uneven shape is a side or surface on which a point, a dotted line or a line (straight line, refraction line, curved line, broken line, slanted line, line having an intersection, etc.) is formed in three-dimensional form at close intervals over the entire luminous flux reflector. The amount of reflection of the lamp is improved by increasing the number of lamps or by increasing the reflection area of the light received by the side or surface to be three-dimensionally formed.
(2) The concavo-convex shape is a structure having a protrusion or a depression formed by a side or a surface having a straight line or an arc (including a three-dimensional arc), and constitutes a light receiving surface for reflecting the light flux. The height of the unevenness is related to the depth of the unevenness receiving light at an obtuse angle, and a deep structure is not preferable, and the size and number of the light receiving surface make the light flux reflection effective. However, manufacturing a light flux lamp reflector for each LED arrangement and lens arrangement as in the light guide plate causes problems in manufacturing and inventory. Without being influenced by the size, it is possible to cope with each lighting device without designing the light flux lamp reflection surface at the same time.
(3) The peak reflection portion can be improved by making the top portion of the unevenness as sharp as possible without having a smooth surface or a gently curved surface.
(4) The light receiving method based on the natural diffusion angle can also reflect the light beam, but straight light (light near the center) emitted from the lens or reflector provided at a right angle to the reflector is applied to the opposite side. Reflected in the light incident direction by a reflector provided at a right angle to the reflector, the light beam emitted from the light source unit and / or the reflector is reflected by the light flux. By irradiating the plate with an obtuse angle (a) with respect to the light receiving surface, it is possible to receive light up to the depth of the uneven side or surface provided on the luminous flux reflector, and the target direction without waste of light emitted from the light source unit Can reflect light flux.

The fifth invention has the following effects.
(1) A light source unit in which a concavo-convex surface is formed by external stress on a reflecting plate provided with a reflecting surface having a reflecting function of 60% or more on both surfaces, or by forming concavo-convex having a reflecting function of 60% or more on both surfaces Can be installed on each side, and the light flux can be reflected on both sides.

The sixth invention has the following effects.
(1) By providing the light introduction body (60) in the opening (22), the light that is projected on the LED light source unit (13) side can be passed and projected onto the opposite side (back side), and double-sided projection can be performed. .
(2) It is possible to emit light on both sides although the ratio is different by spontaneously transmitting light irradiated on one side with a transparent white or yellow resin in addition to reflectivity.

The seventh invention has the following effects.
(1) The LED (11) irradiated from the side in the horizontal direction because the reflecting surface (light receiving surface) (21) of the lamp reflector (20) is a curved surface (24) curved in a direction perpendicular to the light beam direction. Is reflected in the direction of each curved surface of the curved surface (24).
(2) That is, in the curved shape, light irradiated at an obtuse angle (a) in the circumferential curved surface direction forming the curved surface is reflected in the curved angle direction. Further, the light that is re-reflected by providing the transparent resin provided on the decorative plate (14) and is applied to the reflective plate (20) at an obtuse angle (a) is further increased in angle and applied in a wide-area direction.
(3) It is possible to prevent shadows and shadows (disappearance of dark parts) in which no LED is arranged at the joint when the curved lamp reflector (light flux lamp reflector (20) having a curved surface (24)) is arranged in parallel. (Because the light spreads, it can cover the shadow / lamp difference without LED).

The eighth invention has the following effects.
(1) When the fixed surface (25) is provided, the light flux reflector plate (20) can be fixed reliably and easily, and the light flux reflector plate (20) can be prevented from being distorted or twisted. That is, it is possible to correct the deformation / twist of the shape of the curved luminous flux reflector (20) by fixing the fixed surface (25), and to obtain a straight cross section of the luminous flux reflector (20) curved surface (24). it can.
(2) If the fixed surface (25) is provided, the parallel arrangement of the curved lamp-light reflector (20) can be reliably and easily performed.
(3) In the case where the curved lamp-light reflectors (20) are arranged in parallel, the fixed surface (25) can be used as an overlapping surface.
(4) It is possible to prevent the circumferential shape of the curved surface (24) from being broken when the light flux lantern reflector (20) is fixed by the fixture (53).

The ninth invention has the following effects.
(1) Since the standing portion (26) is provided, the diffusion of the light beam from the light source unit (13) can be prevented, and the light can be projected in the reflecting surface (21) opening direction (y).
(2) Since the rising portion (26) is provided, the light beam from the light source unit (13) enters the rising portion (26) and is reflected in the set angle direction of the rising portion (26).
(3) By providing the upright portion (26), it is possible to prevent twisting and distortion of the luminous flux reflector and to increase the strength.

The tenth invention has the following effects.
(1) By providing the auxiliary piece (27, 28) bent outward at the tip of the standing part (26), deformation of the standing part (26) can be prevented.
(2) Strength stability is improved by a synergistic effect with the standing part (26).
(3) By providing auxiliary pieces (27, 28) that bend outwards at the same angle at the tip of the upright part (26) whose left and right heights are changed, the connection of the parallel luminous flux lamp reflector (20) is ensured. Easy to do.

The eleventh invention has the following effects.
(1) Even when the irradiation angle from the light source unit (13) is 15 degrees, the luminous flux lamp reflector (20) has a length (longitudinal direction) of 600 mmL.
(2) Since the light source unit (13) having an irradiation angle from the light source unit (13) within 15 degrees, that is, the maximum irradiation angle of 15 degrees can be used, the options of the light source unit (13) are widened.

The twelfth invention has the following effects.
(1) The structure of the luminous flux reflector plate (20) provided with the concavo-convex shape (30) is a plane reflecting surface (82) having an angle depending on the bending angle in order to secondarily reflect the light irradiated from the side in the target direction. ) Or a concave or convexly curved circle or elliptical reflecting surface (24), which is calculated by the number of LEDs that emit light and the interval and arrangement width, etc., and the reflecting surface for condensing or diffusing ( 21) can be provided.
(2) That is, light controlled from the light source unit (13), which is irradiated from the side, hits the light flux reflector (20) having the concavo-convex shape (30) so that it diffuses naturally only in the concavo-convex direction. Is reflected in the direction of the irregular surface. However, if the decorative board (14) is brightened like a signboard, it may be a flat reflecting surface having a concavo-convex shape, but it is not suitable for irradiating light in a target direction. Therefore, in the present invention, the luminous flux reflector (20) is bent, and light arranged in a straight line at a narrow interval (30 mm pitch = center pitch of the LED) is irradiated to any bent surface direction ( Side bend structure). This bending is effective at a position other than the side surface by using an inverted Fuji structure in addition to the side surface. In addition, the reflecting surface with irregular shapes is a polygonal surface that is a combination of many surfaces other than a flat surface, a curved surface that bends corners, a circular surface that is a circle or an ellipse, and a concave shape that is a circle or ellipse. Alternatively, the light reflected by the uneven shape (30) can be collected or diffused by forming a convex circular or elliptical reflecting surface. For example, when 3 or more and 5 or less LEDs (11) are continuously arranged at a pitch of 50 mm, the concave or convex curved circle or the elliptical reflecting surface (24) has an excellent curved target direction. When dispersive (diffusion) and 5 or more LEDs (11) are connected and arranged, the luminous flux reflector (20) may be a plane reflecting surface, and the number of LEDs (11) is 3 or less. In the case of dispersion in some cases, a curved side wall formed by a concave circle or an elliptical reflecting surface (24) can be used to disperse (diffuse) in the target direction.
(3) Here, in the case of a “planar reflective surface”, a surface having a reflection direction angle set at a right angle or arbitrarily set with respect to the same direction as the light emitted from the light source unit (13) is installed.
(4) In the case of a “convex circular or elliptical reflecting surface”, the light irradiated from the light source unit (13) is curved by being projected onto the convex curved reflecting surface. Is irradiated. Therefore, it is a diffusion method that gives priority to irradiating light from a continuous light source unit (13) arranged at regular intervals in the target direction, and by increasing the convex curvature, only conical center light is emitted. Can be condensed and reflected (by using a mirror material on the reflecting surface, more intense light can be irradiated in the target direction). In addition, in the convex shape of a gentle arc, it is suitable for diffuse reflection in which light irradiated in a conical shape from two or more light source units (13) is irradiated in individual curved shapes (a plurality of light source units ( 13) In the installation environment, the light is diffused as a whole, but the light of each light source unit (13) is slightly diffused in the lateral direction, and two or more light source units (13) when viewed as a lighting device Thus, a diffused illuminating device is obtained by arranging two or more surfaces that reflect high brightness. On the other hand, in the convex shape of the tight arc, the surface that reflects high brightness is narrowed, so that the light source unit (13) can reflect the light of the light source unit (13) in a high brightness state. However, the same condensing effect can be given even on a flat surface, but in a corrugated luminous flux reflector (20) provided with a concavo-convex shape (30) continuously, the side or both sides are bent for reinforcement. It is difficult to form an uneven surface with a horizontal height. On the other hand, by using a convex or concave reflecting surface, the vertical and horizontal strengths of the entire surface can be increased without changing the height of the concavo-convex head at the manufacturing stage.
(5) Further, in the case of a “concave circle or elliptical reflecting surface”, a part of the concave circle or ellipsoidal reflecting surface (concave curved surface) or all of the remaining part of the luminous flux lamp reflector (20) Irradiated from the light source unit (13) by opening (opening) in the front part (light source unit (13) side), middle part, rear part (reaching reflector (40) side) straight line or designed curve The light and the light reflected from the reaching reflector (40) can be projected from the opening with a surface or a line. That is, the light irradiated from the light source unit (13) is irradiated to the reflecting surface (21) having the concave-convex shape (30) of the concave curved surface, and the concave light is reflected in the lateral direction. The side surface (side wall) of the circular or elliptical reflecting surface is utilized.
(6) Here, in the case of irradiation to a narrow lamp shadow area and a narrow range, the diameter of the concave curved surface is minimized by minimizing the size in which the light source unit (13) can be inserted, the circle of the concave curved surface, By using a method in which the opening at the periphery is narrow and elongated, or a combination of both, it is possible to irradiate a narrow area. In addition, when irradiating over a wide lamp area and a wide range (lateral direction), a method of increasing the diameter of the concave curved surface, a method of making the opening on the circumference of the concave curved surface wide and wide, a concave curved surface Irradiation over a wide range is possible by using a method in which most of the apertures are left and most of them are used as openings, or a combination of these methods. Specifically, the irradiation diffusion angle can be controlled by the opening and the circumferential diameter of 20% to 90% of the circumferential distance of the concave curved surface. (7) In addition, as a method of controlling the opening, by laminating two or three uniform luminous flux reflectors (20), and rotating two of them in the circumferential direction By changing the aperture area, the irradiation / lamp shadow area can be controlled.

The thirteenth invention has the following effects.
(1) The luminous flux lamp reflecting plate (20) includes a concavely curved circle or elliptical reflecting surface (24) and is installed in a cylindrical case member having a light transmission property in part or all thereof. A surface light source product can be obtained by attaching a part or all of the light-transmitting attachment member.
(2) That is, since it can be installed in a transparent pipe or the like, slimming is possible. Moreover, it can respond to a large luminescent surface by arranging the slim units in parallel or in series.

The fourteenth invention has the following effects.
(1) The uneven shape (30) of the luminous flux reflector (20) has a structure that is difficult to clean when dirt is attached, but the inside of the LED lighting device (10) has a sealed structure. It is possible to prevent adhesion of dust and the like to the uneven shape (30) of the luminous flux lamp reflector (20).
(2) In addition, due to the expansion and cooling contraction caused by the temperature rise in the closed space due to the light emission heat generated when the LED is lit, the LED illumination device (10) is exposed from the surroundings due to the adsorption action due to electromagnetic waves. Although minute inflow of dust occurs and the reflectivity decreases due to dust adhesion, the sealed structure prevents dust inflow from the surroundings, and at the same time it can have waterproof and drip-proof functions In addition, prevention of illuminance reduction and simplification of cleaning maintenance can be realized.

The fifteenth invention has the following effects.
(1) Since the LED illumination device (10) is structured to be rotatable in the circumferential direction, the light emitted from the opening can be irradiated in the rotated direction.
(2) Since the irradiation direction can be freely controlled, it is possible to efficiently irradiate light in the target irradiation direction without selecting the mounting location of the LED lighting device (10). In addition, it is possible to reflect the light on the ceiling and the wall surface to give an interior effect and a production effect.

The sixteenth invention has the following effects.
(1) The light emitted from the light source unit (13) for condensing the light emitted from the LED, the decorative plate (14) of the light source unit (13) part uses any condensing lens structure Will become brighter. As a method of attenuating the brightness, there is a method of picking up light. In the high luminance part, the dot or line pitch for extracting light is widened to reduce the brightness, and in the low luminance part, the dot or line pitch is narrowed. By doing so, a technique has been taken that can arbitrarily adjust the brightness control. However, the dot or line pitch can be made to have an excellent brightness balance, but the processing cost is high, and it is necessary to design and manufacture each time depending on the size of the lighting unit, the number of LEDs that emit light, and the lens performance. , The cost of the entire product can not be reduced.
(2) On the other hand, the light source unit (13) is a dimming member for attenuating the light irradiated directly from the light source unit (13) to the decorative plate (14), for example, the light source unit (13). "Cylinder" (circular or square) that covers the periphery of the lens or reflector with a light-transmitting "plate" on the decorative plate (14) side of the lens or reflector or having an opening in the target direction ) ”Can be provided to reduce the luminance of the decorative board (14) in the vicinity of the light source portion. According to this, it does not attenuate the light emitted from the light source unit (13) toward the luminous flux reflector (20) side, but only attenuates the light leaked directly above the light source unit (13), It is possible to reduce the luminance difference of surface light emission by the decorative board (14).
(3) That is, a decorative board that contacts the light source part by providing a dimming plate, a dimming tube, etc. for blocking and attenuating part of the LED light directly above the lens and reflector constituting the light source unit (13). Reduce the illuminance of (14). Specifically, a white plate or cylinder having a transmittance of 50% to 70% is coated or placed with a length of 30 mm to 60 mm from the LED element surface.

The seventeenth invention has the following effects.
(1) By having a reaching reflector (40) that re-reflects the light emitted from the light source unit (13) to the opposite side of the luminous flux reflector (20) to the luminous flux reflector (20); Occurrence of a shadow difference can be prevented.

The eighteenth invention has the following effects.
(1) In the two-connected surface light emitter (LED lighting device) provided with the reaching reflector (40) for back-to-back, it is possible to eliminate the shadow difference caused by the connecting portion generated on the decorative plate (14).
(2) In this case, the mounting position of the LED (11) is lowered. That is, the ultimate reflecting plate (40) and its support are 5 to 10 mm lower than the decorative plate (14). Further, the angle of the reaching reflector (40) is a position that is 2/3 to 1/10 in the longitudinal direction, preferably 1/5 in front of the light emitting portion facing each other and ahead of the center point of the luminous flux reflector (20). The optimal downward angle at which the most advanced light beam of the arrival reflector (40) returns is set at the bottom (the upper part of the lowered arrival reflector (40) is 3 mm of the outer fold or the bending reinforcement is eliminated). A thin white cylinder or semicircular or elliptical light diffuser having a thickness capable of leaving a gap of 2 mm to 5 mm may be provided on the upper part of the lowered back-to-back reaching reflector (40).

The nineteenth invention has the following effects.
(1) Even if the light source unit (13) and the arrival reflector (40) are connected so as to be back to back, surface light emission with reduced shadow difference can be achieved.
(2) With this combination, the LED can be extended to an infinite length even in the series direction.

The twentieth invention has the following effects.
(1) If only the light from the light source unit (13) is irradiated to the luminous flux lamp reflector (20) at an angle, the light of the luminous flux reflector (20) is attenuated by the property of light attenuated by the square of the distance. As the length increases, the tip of the luminous flux lamp reflector (20) (on the side of the anti-light source unit (13)) becomes dark even if a lens or reflector with a narrow diffusion angle is used. The reflective surface (21) of the luminous flux reflector (20) also attenuates the reflection efficiency due to the uneven shape (30) in proportion to it, and the natural space in the luminous flux reflector (20) and decorative plate (14) Even with diffuse and spontaneous diffuse reflection, uniform brightness cannot be obtained.
(2) However, by irradiating both the luminous flux lamp reflector (20) and the angled reflector (40) with the luminous flux diffused conically from the light source (13), the LED illumination device (10) The entire decorative panel (14) can be brightened.

The perspective view (whole figure) which shows 1st Embodiment of the illuminating device which concerns on this invention. Sectional drawing (light beam direction) which shows 1st Embodiment of the illuminating device which concerns on this invention. Explanatory drawing (Irregular shape 1) which shows 2nd Embodiment of the illuminating device which concerns on this invention. Explanatory drawing which shows 2nd Embodiment of the illuminating device which concerns on this invention (uneven shape 2). Explanatory drawing which shows 2nd Embodiment of the illuminating device which concerns on this invention (uneven shape 3). Explanatory drawing which shows 2nd Embodiment of the illuminating device which concerns on this invention (uneven shape 4). Explanatory drawing which shows 3rd Embodiment of the illuminating device which concerns on this invention (double-sided reflection structure) Explanatory drawing which shows 4th Embodiment of the illuminating device which concerns on this invention (opening part 1). Explanatory drawing which shows 4th Embodiment of the illuminating device which concerns on this invention (opening part 2). Explanatory drawing (bending part) which shows 5th Embodiment of the illuminating device which concerns on this invention. Explanatory drawing which shows 5th Embodiment of the illuminating device based on this invention (bending part 2). Explanatory drawing which shows 5th Embodiment of the illuminating device based on this invention (bending part 3). Explanatory drawing (bending part 4) which shows 5th Embodiment of the illuminating device based on this invention. Explanatory drawing (flat part, standing part) which shows 6th, 7th embodiment of the illuminating device which concerns on this invention. Explanatory drawing (flat part, standing part) which shows 6th, 7th embodiment of the illuminating device which concerns on this invention. Explanatory drawing which shows 8th Embodiment of the illuminating device which concerns on this invention (light-beam lamp reflector shape) Explanatory drawing which shows 9th Embodiment of the illuminating device which concerns on this invention (pipe type illuminating device). Explanatory drawing which shows 9th Embodiment of the illuminating device which concerns on this invention (pipe type illuminating device). Explanatory drawing which shows 10th Embodiment of the illuminating device which concerns on this invention (series connection structure) Explanatory drawing which shows 11th Embodiment of the illuminating device which concerns on this invention (lens installation angle)

A lighting device (10) according to the present invention will be described with reference to the drawings.
1 and 2 will be described.
FIG.1 and FIG.2 is the perspective view and sectional drawing which show 1st Embodiment of this invention.
First, the LED (11) will be described.
(1) As for LED (11), the LED color can be used without selecting the color temperature of white (cool white, warm white), RGB (red / green / blue) mixed primary LED, plant seedling light As an effective red / blue LED, it can be used according to the intended use.
(2) The LED (11) preferably has a high output specification of 1 W or more. By selecting a LED with high output, the emitted light is strong, and when combined with a light beam irradiating lens (lens / reflector as a light source unit), the position of the light flux reflector is long (about 1.5 m) at the same time as the brightness. Alternatively, there is an effect that a wide range can be brightly illuminated.
(3) The lighting of the LED can be adjusted by volume control, or in the case of a multi-lamp LED, the amount of light can be adjusted by non-full lighting (the number of adjusted lights as necessary).
(4) The arrangement interval of the LEDs (11) is 20 mm (the lens / reflector diameter is the narrowest) at a position where the light enters the reflecting surface (lamp surface) of the luminous flux reflector, and is 80 to 80 mm (the luminous flux). It is preferable to arrange them at the center point interval (the arrangement may not be linear if the reflecting surface of the luminous flux reflector is curved). When the brightness is obtained, the interval can be narrowed, and when the appropriate brightness is sufficient, the interval can be widened to reduce the initial cost and the running cost.

Next, the light source unit (13) will be described.
(1) For the lens as the light source unit (13), in order to make the light emitted from the LED reach a distant position, the light beam irradiated in the following conical shape (including elliptical conical shape) or triangular pyramid shape What becomes (light beam) is preferable. That is, when the length (longitudinal direction) of the illuminating light flux reflector reflecting plate is 300 mmL or more, the lens irradiation angle is 8 degrees or more and 25 degrees or less (preferably 10 degrees or more and 20 degrees or less), and when the length is 300 mm or less. The lens irradiation angle is 8 degrees or more and 45 degrees or less (preferably 10 degrees or more and 30 degrees or less when the installation interval of the LEDs arranged on the luminous flux reflector is narrow). In addition, for a luminous flux lamp reflecting plate for irradiating a wide range without reaching a far position, a knurled longitudinal non-diffusing groove direction diffusing lens having a vertical groove with respect to the luminous flux lamp reflecting plate or It may be selected according to a single or other combination of light flux lenses consisting of a reflector or both.
(2) The irradiation angle from the light source unit (by LED and lens or reflector or both) (13) is horizontal (parallel to the luminous flux reflector (20)) or obtuse (perpendicular to the luminous flux reflector (20)) Irradiation at an angle (a) of the direction without the luminous flux reflector (20) with respect to the line is preferable. Among them, the outer line (b) from the center line of the light beam emitted from the lens (13) tilted to the projection plate (20) side at a slight angle that is deeply irradiated to the projections forming the irregularities with an acute light incident angle. In this range, an angle that hits the tip of the opposite side of the lamp reflector (20) is preferable.
(3) In addition, around the light emitting light source part (around the light emitting lens) by applying a resin compounded with white titanium oxide or white alumina having a drip-proof / waterproof effect on the periphery of the lens or LED and on the substrate The light source unit that reflects the light returned by irregular reflection in the forward direction can be obtained. In this case, by adding 90% or more and less than 99.5% of white alumina, the drip-proof / water-proof resin can have a heat dissipation function.

Next, the light source unit (13) will be described.
(1) A cone (including an elliptical cone) that irradiates the light of the point light source of the LED (11) with a lens and / or a reflector, or both, and a luminous flux that suppresses the diffusion of acute triangular projection. By doing so, the illuminance attenuation due to the irradiation distance can be suppressed to the minimum, and the light arrival distance can be extended with light having a small attenuation rate.
(2) The incident light angle (obtuse angle) of the light beam that suppresses the diffusion of the cone (including the elliptical cone shape) or the sharp triangular angle with respect to the reflecting surface (21) of the luminous flux reflector (20) (a) By making the light incident at, it is possible to irradiate the reflecting surface (21) with the light beam from the incident side to the opposite side, so that the size in the longitudinal direction can be easily increased. Further, by arranging the light emitting units (light source units) (13) in series (including a curved one in addition to a linear one) at a constant interval, the size can be increased also in the width direction.
(3) By using a thin lens combined with a convex lens and / or a Fresnel lens function, the lens portion of the light source unit (13) can be made thin, and the luminous flux lamp reflector illumination unit (10) can be miniaturized.
(4) The thickness of the light beam irradiated from the irradiation unit by a cone (including an elliptical cone shape) using a lens and / or a reflector, or by acute triangulation, is 10 mm to 80 mm in diameter, preferably 20 mm. By arranging these cones (including elliptical conical shape) or acute triangular pyramids in parallel (including the curvature in the height direction) continuously, the diameter of the high-intensity irradiation part of the cone light is a luminous flux. The width of the lamp face and the lamp face reach distance (depth) of the luminous flux can pass through the decorative plate (14) to provide an almost uniform light emitting surface (Note that the luminous flux reflector (20) is a mirror surface) There may be no decorative board (14)).
(5) If it is possible even with a streak without requiring uniformity of the light cast from the decorative board (14), it is possible to reduce the amount of electricity consumed by widening the installation interval between the LED and the lens / reflector. A light emitting surface can be obtained.
(6) Since the thickness of the illumination device (10) depends on the diameter of the lens or reflector of the irradiation unit using the lens and / or the reflector, use a small diameter lens or reflector of about 20 mm or both. By using the irradiation port, it is possible to reduce the thickness of the lighting device.
(7) In the case of obtaining a high illuminance in the enlargement of the irradiation plate, it is easy to increase the current consumption of the LED (11). However, the method of reducing the interval between the arranged LEDs (11), the opposite side, High light intensity can be obtained by allowing light to enter the luminous flux lamp reflector (20) from a plurality of sides.

Next, the light source unit (13) will be described.
(1) Regarding the disposition of the LED (11) and the lens (light source unit) (13), the light flux lamp reflector (20) of the LED (11) serving as the light source and the lens (light source unit) (13) bonded thereto are arranged. When it is arranged at both ends of the opposite sides, it is placed on the opposite straight line, but when the distance between the LEDs (11) is wide, another side is placed at a position opposite to the middle point of the intervals between the LEDs (11) on one side. The center point of the LED (11) is provided. The shadow difference generated due to the wide LED array interval can be compensated by the light of the LED (11) irradiated from the opposed sides. Further, by providing an upward reflection or downward reflection plate (arrival reflection plate) (40) between the array intervals of the wide LEDs (11), it is possible to prevent the occurrence of a shadow difference. Here, the reaching reflector (40) is preferably one that reflects in a target direction having a calculated light distribution curve or light distribution curved surface in addition to a flat plate shape.
(2) The installation angle of the arrival reflector (40) is 91 degrees or more and 135 degrees or less when the incident light side is 0 degrees with upward reflection, and 40 degrees or more when the incident light side is 0 degrees with downward reflection. The angle is set so as not to obstruct the contrast of the light and darkness of the reaching reflection in the vicinity of the light source of the LED (11) that emits light at a degree or less. If the setting angle is not good, the effect of the arrival reflector (40) cannot be obtained, and if the setting angle is too tight, only the reflection surface becomes bright.
(3) In the case of white light, the reaching reflector (40) may be white or a specular reflector, and the specular reflector can obtain stronger reaching reflection. In the case of a color in which the lamp light is colored (the coloring method may be based on the coloring of each of the LED element, lens, and reflector, or a combination thereof), the projection reflector (20) to be used and the reaching reflector ( The same color of 40) is preferred.
(4) A setting angle is set at an obtuse angle to the side of the lamp reflector (20), and the rear surface of the light flux lamp reflector (20) is irradiated and an obtuse angle on the decorative board (14) In order to reduce the brightness difference of the decorative board (14), it is considered from the balance of brightness depending on the size of the luminous flux reflector (20). The optimum angle is reflected light.

Next, the substrate circuit unit (12) will be described.
(1) For the LED circuit board (board circuit part) (12), a board selected from a paper board, a glass epoxy board, and an aluminum board with heat dissipation according to the light emission output of the LED (11) is used.
(2) The following may be used as the heat dissipation board of the board circuit section (12). A conductive circuit in which copper foil is etched into an LED contact pattern is blended with a filler with thermal conductivity of aluminum, alumina, aluminum nitride, boron, or carbon alone or mixed, mixed with an epoxy adhesive, and then an aluminum plate or anodized It is the heat-radiation board manufactured by the processed aluminum and A stage or B stage.
(3) Alternatively, an alumite thickness having an insulating layer function for keeping a gap between a current-carrying portion and an aluminum plate as a current-carrying material with a minimum thickness of a film of 0.5 μm or less or a cyanoacrylate-based heat conduction-inhibiting layer The heat dissipation board is 10 μm or more and 30 μm or less.
(4) In order to enhance the thermal conductivity of the copper circuit itself, the copper width of the copper foil circuit is widened or thickened to balance the heat of the LED package with the copper, and the heat conduction to the aluminum heat sink It is preferable to use a substrate having a large heat conduction contact area.
(5) The concave portion of the concave and convex portions on the back surface side of the copper foil is the main adhesive surface, and the thickness of the adhesive layer on the convex portion upper surface is 3 μm or less, so that the insulating surface is provided during compression thermoplasticity for bonding. Adhering to the alumite or heat-dissipating resin to transmit the light emission heat generated when the LED (11) emits light to the copper foil for energization, and minimize the heat resistance to the insulating surface that is in close contact with the convex part on the back of the copper foil It is good to dissipate heat.

Next, the decorative board (14) will be described.
(1) In 1st Embodiment shown in FIG.1 and FIG.2, although the decorative board (14) is provided as an exterior member of the light emission surface of an illuminating device (10), a decorative board (14) is provided with an illuminating device (10). It also serves as a protector that protects the internal structure, and in that sense, if there is no need to protect the internal structure, the decorative board (14) may not be required.
(2) For example, when it is used to illuminate a vending machine sales object (such as a can of drinking water or a plastic bottle), there is no need to protect the internal structure, so use without a decorative board (14) To do. That is, it can be used for a thin structure in which the irradiation light source portion is not visible and only the irradiation object is visible.

Next, the luminous flux lamp reflector (20) will be described.
(1) About the light incident direction (incident angle) to the luminous flux lamp reflector (20), the entire incident angle (obtuse angle) from the lower position to the luminous flux reflector (20) with respect to the luminous flux reflector (20). ) Irradiate parallel to (a) or luminous flux reflector. Here, “low position” means that the center of the LED light source unit (13) is 1 mm or more and 100 mm or less from the luminous flux reflector (20), and the decorative plate from the outer diameter of the decorative plate (14) side of the light source unit (13). The position up to (14) means a position separated by 10 mm or more. Preferably, the position is 10 mm above and below with reference to the center position (center portion) of the reflective surface (21) serving as the bottom and the decorative plate (14) serving as the top. When the length (longitudinal direction) of the luminous flux reflector (20) is 400 mmL or less, it is arranged at the center or a position lower than the center, and when it is 400 mmL or more, it is arranged at the center or a position higher than the center. It is preferable. If the total thickness of the lighting device (10) is thin and the center portion cannot be mounted at a position 10 mm above and below the center portion, a position as close as possible to the luminous flux reflector (20) side is preferable at the center portion. When the lamp reflector (20) and the decorative board (14) have only a lens space, they may be directly above the luminous flux reflector (20). Further, when the LED light source unit (13) is close to the decorative board (14), the irradiated light is directly cast on the decorative board (14), so that it is 10 mm or more (preferably 20 mm or more) from the decorative board (14). It is better to be away from the luminous flux lamp reflector (20), if the length (longitudinal direction) of the luminous flux reflector (20) is 300 mmL or less, it should be 1 mm or more. Can enter the entire reflecting surface (21).
(2) If the concave / convex shape (30) provided on the luminous flux reflector (20) has a light receiving direction, or if the LED light source unit (13) cannot be placed due to the reinforcement / diffusion prevention side, it can be placed otherwise. Let it be one side or two opposite sides.
(3) When the uneven shape (30) provided on the luminous flux reflector (20) has no light receiving directionality, the necessary brightness is projected from the side where the LED light source unit (13) can be placed. In order to reduce the shadow difference balance (contrast), it is arranged on the side of the lamp reflector.
(4) The luminous flux reflector (20) has a reflective surface (21) in FIG. 1 having a straight or flat surface, and in FIG. 2 the reflective surface (21) has a curved or curved surface. .

Next, the coloring of LED light will be described (not shown).
(1) For white and color systems, metal plates, resin plates, finely fired resin plates and resins that can be formed into irregular shapes for ink printing, paint coating, and film lamination with a regular reflectance of 60% or more There is a reflective plate of a color color other than white printed or coated / bonded on both sides or one side of a composite plate / paperboard of paper and paper alone or on a selected composite (printing a mirror surface system made of silver or gold) -Can be handled by painting).
(2) As the white and color systems, there is a resin reflector formed by molding a pellet mixed with white or a color filler other than white in order to obtain a regular reflectance of 60% or more.
(3) As a specular reflector formed by vapor deposition of metal, there is a specular reflector obtained by chemically polishing the metal surface or buffing or depositing metal on the surface in order to obtain a regular reflectance of 60% or more. . Further, there is a specular reflection plate in which a silver or gold sheet is bonded to a metal plate / resin plate.
(4) As the specular alumite, there is a reflector having a regular reflectance of 60% or more that has been subjected to an alumite treatment in which an aluminum surface is chemically polished and then colored in an arbitrary color.

3 (FIGS. 3-1 to 3-3) and FIG. 4 will be described.
FIG. 3 (FIGS. 3-1 to 3-3) and FIG. 4 are explanatory views showing a second embodiment of the present invention.
First, FIG. 3-1 will be described.
(1) As the concavo-convex shape (30), there is a single side for forming projections on one side or a double side for forming projections on both sides.
(2) Examples of the shape include the following.
Fig. 3-1 (A) ... Example of dotted or linear uneven shape Fig. 3-1 (B) ... Example of single-sided cross-sectional shape Fig. 3-1 (C) ... Double-sided planar shape (the left figure is a dotted uneven shape) FIG. 3-1 (D) is a plan view of the lattice-shaped uneven shape (two directions in the light incident direction).
Curved edges selected from lattice protrusions intersecting straight lines, or the crests of one side or both sides of a cone made of straight lines, to prevent regular reflection (proportional obtuse angle), smooth surfaces and gentle tops Don't be.
(3) When protrusions are formed on both sides, the independent cones of the lamp reflection surface and the chain cones with partial breaks are alternately performed on the front, back, left, and back, and the front and back are alternately arranged on the connecting cones.
(4) In order to improve the projecting reflectivity for receiving light at an obtuse angle, it is also possible to mold by shifting the concavo-convex shape. For example, it is the shaping | molding which arrange | positions dot-shaped uneven | corrugated shape in zigzag form (it is staggered or alternately). Thereby, reflection efficiency can be improved.
(5) For each cone formed by external stress without heating, the support is pulled by the tension at the time of projection formation, and the lantern reflector is distorted along with the projection formation, but each cone is arranged alternately on the front, back, left, and back By doing so, the occurrence of distortion can be suppressed. In addition, by providing a buffer space of several hundreds μm around a continuous cone with a part of the independent cone, a flat lamp reflector with a projection cone formed therein can be formed.

Next, FIG. 3-2 will be described.
(1) In FIG. 3-2, in the corrugated concavo-convex shape (30) luminous flux lamp reflector (20), the same coloring (31) and different coloring (32) are applied to each inclined surface in the same direction. Is. By so doing, when the light beam (i) is irradiated, the colored (31) reflecting surface is reflected, and the reflected light colored in the colored (31) is projected. At this time, the coloring (32) of a different color becomes a shadow portion. Further, when the light beam (j) is irradiated, the reflecting surface of the coloring (32) is reflected, the reflected light colored in the coloring (32) is projected, and the coloring (32) becomes a shaded part.
(2) For example, the coloring (31) is blue, and the coloring (32) is red. Then, it is possible to provide a refreshing atmosphere by irradiating the luminous flux (i) in the morning and causing the illumination device (10) to emit blue light. It is possible to provide a peaceful atmosphere by irradiating the luminous flux (j) in the evening and causing the illumination device (10) to emit red light.
(3) That is, it is possible to provide two lamp colors by changing the light incident direction of the LED by making the uneven shape (30) as shown in FIG.

Next, FIG. 3-3 will be described.
(1) When considering the energy saving by LED (11) as a top priority, the light source unit (13) is arranged on one side of the square luminous flux reflector (20). By arranging the light source unit (13) on the opposite side or all sides and irradiating the luminous flux lamp reflector (13) to receive light at an obtuse angle (a), the luminous flux lamp reflector (20 ) Can be improved. At this time, the shape of the side of the luminous flux reflector (20) can be a triangle, square, or larger polygon, and the light reflecting unit (40) that reflects light from the light source unit (13) and the light source unit (13) again (40 ) Can be bent or installed at regular intervals to reflect the shape of the circumference.
(2) That is, when the reach of the luminous flux irradiated by the LED light source unit (13) is diffused in the lateral direction within 1 m, the light diffused by providing a light emitting portion at one corner of the isosceles triangle is the entire isosceles triangle. Can also be irradiated. By combining these triangles or performing the same method on a plane, it can be used as a light incident method for a circular or polygonal lighting plate.
(3) FIG. 3-3 (A) shows a hexagonal illuminating device (10) formed by connecting six triangular luminous lamp reflectors (20). At this time, since the light source unit (13) is irradiated from the center point (center position) to the outer side direction, the light flux reflector (20) is linear (a line perpendicular to the light incident direction). (301) or a dot-like uneven shape (302) is provided.
(4) FIGS. 3-3 (B) and (C) are a luminous flux reflection plate (20) constituted by a single plate, and (B) is provided with the light source unit (13) at the center point (center position). (C) is a type in which the light source unit (13) is provided on the outer side and irradiated to the center point (center position). The light source unit (13) is irradiated from the center point (center position) toward the outer side. When a single reflector is used, a dot-like uneven shape (302) is obtained.

Next, FIG. 4 will be described.
(1) FIG. 4 (A)... Uneven shape of non-geometric pattern with continuous non-uniform shape (so-called snowstorm pattern or amoeba design pattern)
(2) FIG. 4 (B)... Reflection surface formed by stress twist formed when slits are formed in a certain pattern on a metal, resin, or a laminated plate of a certain thickness and stretched. Three-dimensional network having a so-called lath network (3) FIG. 4 (C)... Example of uneven shape in a broken line shape (a broken line or a combination of a line and a point)

Next, a method for forming the concavo-convex shape of the luminous flux reflector (20) will be described (not shown).
(1) A non-heated or unevenly formed reflection plate having a regular reflectance of 60% or more and having a concavo-convex surface formed by heating is a metal having a thickness of 0.20 mm to 0.7 mm (rust-prevented Fe, Al, SUS or the like) or a concavo-convex shaped support of paper is compression-molded into a concavo-convex of 0.2 mm or more and 2 mm or less, preferably 0.35 mm or more and 1.0 mm or less, by a press die or a roller die.
(2) Heat-melt and soften the sheet-like thermoplastic resin by heating, and form a concavo-convex shape formed on the mold by vacuum forming on the shape support or the resin surface. The sheet-like thermoplastic resin may be a finely foamed material. A reflection plate made of resin molding having a reflectance of 60% or more forms irregularities for light reflection by injection molding, cast molding, and blow molding. In addition, when performing injection molding, cast molding, and blow molding, the final product shape can be molded upon completion of molding.
(3) Reflection by forming uneven surfaces with so-called lath mesh surface, which has a diamond-shaped space that rises while twisting by inserting incisions at regular intervals into aluminum or an aluminum processed plate is there.

FIG. 5 will be described.
FIG. 5 is an explanatory view showing a third embodiment of the present invention.
(1) FIG. 5 (A) shows a double-sided reflection by making the luminous flux lamp reflector (20) into a folded plate structure. The upper figure is a cross-sectional view (cross-sectional view in the width direction intersecting with the light beam direction), and the lower figure is a plan view. The unevenness difference (total unevenness difference = depth) (c) of the folded plate is 5 mm or more and 50 mm or less, and preferably 20 mm. In addition, as for arrangement | positioning of LED (11), if uneven | corrugated difference c (total uneven | corrugated bending difference = depth) is 15 mm or less, you may arrange | position LED light source unit (13) linearly. This is because the unevenness difference can be eliminated by providing the LED light source unit (13) with an angular difference if it is 15 mm or less.
(2) The LED light source unit (13) is attached to the vertical plate fixing bar (50) for fixing the luminous flux lamp reflector (20). Prepare the auxiliary plate (51) so that the LED light source unit (13) can be provided in the recess where there is a gap between the plates (20), and attach the LED light source unit (13) to this and place it in the recess .
(3) FIG. 5 (B) is a longitudinal sectional view showing a fixing structure of the luminous flux lamp reflector (13) having the folded plate structure shown in FIG. 5 (A). The lower end portion and the upper end portion of the luminous flux shadow reflecting plate (20) are fixed by the standing plate fixing bar (50). The vertical plate fixing bar (50) is fixed by a fastener 52 using a substantially L-shape, U-shape, square shape, or the like. Thus, by using the substantially L-shaped standing bar fixing bar (50) as a fixture, the double-sided reflection structure of the luminous flux reflector (20) can be reliably maintained, and the luminous flux reflector (20 ) Can be prevented from being distorted, distorted, twisted, and the like.
(4) If the luminous flux reflector (20) is elongated in the vertical direction and there is a risk of distortion or distortion, the vertical plate fixing bar (50) may be provided at an intermediate position other than the lower end and upper end. Good. By installing the vertical plate fixing bar (50) in the middle position, it is possible to reliably prevent distortion, distortion, etc. of the luminous flux reflector (20), and to the vertical plate fixing bar (50), the light source unit (13) Can be used to compensate for the attenuation of the amount of light generated in the middle portion.
(5) When the vertical plate fixing bar (50) is not provided at the intermediate position, the arrangement surface of the LED (11) is limited to 500 mm, but by providing the vertical plate fixing bar (50) at the intermediate position, 500 mm The arrangement surface of the above LED (11) can be provided.

6 and 7 will be described.
6 and 7 are explanatory views showing a fourth embodiment of the present invention.
First, FIG. 6 will be described.
(1) As shown in FIG. 6A, an arbitrary area (for example, an area ratio of 3% to 50%) is formed on the reflecting surface (light receiving surface) (21) of the luminous flux reflecting plate (20) having the concavo-convex shape (30). %), It is possible to make double-sided lighting by passing the light projected on the LED light source unit (13) side to the opposite side (back side).
However, in this case, the light (reflected light) (d) reflected on the decorative board (14) passes through the aperture (22) at a right angle and casts on the opposite side (back side), but the aperture ( Since the light (linear light) (e) that directly enters (does not reflect) 22) is tilted, the opposite side (back side) cannot be illuminated sufficiently.
(2) On the other hand, as shown in FIG. 6 (B), the linear light from the light source unit (13) passing through the opposite side (back side) of the luminous flux lamp reflector (20) (full incident angle) In order to use the luminous flux (e) incident on the illuminant as the illuminating light, the reflecting surface (21) is bent at a predetermined angle without cutting off a part of the illuminating reflector (20) that becomes the aperture (22). By forming the bent piece (23), the light flux (LED light) that has been passed through can be projected in the target direction on the opposite side (back side).

Next, FIG. 7 will be described.
(1) As shown in FIG. 7 (A), a light introducing member (60) having a light transmitting property is fitted into the opening (22) for making a double-sided lighting, so that light can be obtained. Light is cast as transmitted light (f) from the introduction body (60) to the opposite side (back side). Here, examples of the light introducing body (60) include a lens body.
(2) In particular, the light introduction body (60) is provided with a concavo-convex shape (61) or a fine concavo-convex shape (62). Can control the lighting on both sides. Light incident upon reflection and incident light by the light-receiving surface with unevenness having light transmittance is transmitted to the back surface. The unevenness (61) of the light-transmitting resin is preferably an unevenness (61) having the same height as that of the lamp reflector (20), but may be a rough surface that prevents horizontal regular reflection at a height of less than half.
(3) As shown in FIG. 7B, the light introducing body may be provided on the front side opposite to the opposite side (back side) through the opening portion (22).

FIG. 8 (FIGS. 8-1 to 8-4) will be described.
FIG. 8 is an explanatory view showing a fifth embodiment of the present invention.
First, FIG. 8-1 will be described.
(1) The light of the LED (11) is unidirectional light, and the light irradiated at an acute angle in the target direction does not diffuse in a wide area in an oblique direction. As a method of diffusing, the light received on the side surface of the protrusion (30) is only slightly diffused, and a wide range cannot be illuminated and irradiated. In a smooth luminous flux reflection plate as shown in FIG. 8-1 (A), most of the luminous flux is simply converted (g) in the vertical direction or the projection reflection reflection direction on the irradiated straight line. There is no lighting in the direction (radial).
(2) However, the reflecting surface (light receiving surface) (21) of the lamp reflector (20) is a curved surface (24) curved in a direction perpendicular to the direction of the light beam, as shown in FIG. The LED light irradiated from the lateral direction as described above is subjected to lamp reflection (radial reflection) (h) in each curved surface direction of the curved surface (24).
(3) The light of the LED is converted into a light beam, that is, a light beam by a light source unit (lens and / or reflector) (13), and is wide-angled or far-expanded as a thick light. The light beam irradiated at this time radiates from the center point of the so-called curved circumference in the perpendicular direction of the curved surface (24) irradiated to the curved surface (24) with different angles as the LED light. Is diffused (h) with the same reflection angle as the incident angle around the direction (normal) extending in the direction of the light, and the circumferential diffusion (h) of the luminous flux is in the luminous flux direction (longitudinal direction) of the luminous flux reflector (20) It is lit continuously in the oblique regular reflection direction.
(4) FIG. 8B shows the curved surface (24) curved in a convex shape in the direction of the decorative board (14), but the curved surface (24) curved in a concave shape in the direction of the decorative board (14). Good. In the case of the concave curved surface (24), the circumferential diffusion (h) is performed in the same manner as the convex curved surface (24), but the light once condensed inward crosses radially and diffuses.

Next, FIGS. 8-2 to 8-4 will be described.
(1) The curved surface (24) is preferably in the range of 30R to 400R, with a wide circular shape selected according to the purpose of use, such as a strong circular shape of 30R to 100R and a loose circular shape of 250R to 350R. In this case, the number of LED light source units (13) is in the range of 1 or more and 6 or less / side. Due to the lamp reflection effect and the curved lamp effect of the projection (uneven shape) (30), the light radiated from the lateral direction to the obtuse angle (entire light incident angle) (a) can be projected in a wide range in the oblique direction.
(2) In FIG. 8-2, the curved surfaces (24) of the luminous flux lamp reflector (20) have curves of 250R, 300R, and 350R. And about the curved surface (24) of 250R, the reflected light with respect to the parallel light ray irradiated to a reflective surface (21) is simulated. If the LED light source units (13) installed at the left and right ends are installed at the positions shown in the figure (right side omitted), the incident light (k) is reflected by the curved surface (24) and becomes reflected light (m). It was estimated that this reflected light (m) was reflected by the rising portion (26) at the left end of the luminous flux reflector (20). As a result, the incident light can be efficiently incident on the luminous flux lamp reflector (20) with a total of three, two at the left and right ends and one at the center.
(3) In FIG. 8-3, the curved surface (24) of the luminous flux lamp reflector (20) has a curve of 30R. If it is 30R, the reflection angle at which the curve is tight becomes wider, and the reflected light toward the front (the decorative plate (14) side) decreases. However, the upright portions (26) provided at the left and right ends of the luminous flux reflector (20) re-reflect the reflected light that does not reflect forward (decorative plate (14) side), and forward (decorative plate (14) side) Plays an important role in controlling the reflection to. By providing LEDs on the top of each of the R30 luminous flux reflectors (20) and the respective side surfaces, it is possible to diffusely irradiate a wide range of the circumference. The ability to irradiate a wide area allows it to be used as a substitute for a straight tube fluorescent lamp. Further, instead of the curved surface (24) of R30, a luminous flux reflector (20) formed into an inverted V shape and having both inclined surfaces as reflecting surfaces (21) may be used.
(4) In FIG. 8-4, the luminous flux lamp reflector (20) is shown as 0R (linear). In this case, the parallel light beam (incident light) applied to the reflecting surface (21) becomes reflected light passing through the same optical path. Therefore, circumferential diffusion like the curved surface (24) shown in FIGS. 8-2 and 8-3 is not observed.

Next, a method of forming the curved surface (24) of the luminous flux lamp reflector (20) will be described (not shown).
(1) Curved surface (24) “Embossing roll forming” is a molding method for roller molds, and it is not necessary to consider the spring bag when designing the mold. Since the unevenness is formed by pressure, the uneven formability is excellent.
Therefore, an arbitrary curved surface (24) or a flat surface can be obtained by controlling the pressing force of the upper and lower uneven rollers during molding or by using the curved shape setting plate or the auxiliary roller and the bending auxiliary guide provided at the roller outlet.
(2) In addition, after shaping | molding with the embossing roller which requires a pressure, the pressure by a roller may be positively applied with the homing roller for shape | molding a curve, and a curve may be formed.
(3) In addition, there is a case where a molding process having both a homing roller and an embossing roller is performed.

9 and 10 will be described.
9 and 10 are explanatory views showing sixth and seventh embodiments of the present invention.
First, FIG. 9A will be described.
(1) A flat side that is bent at a different angle from the curved curved surface (24) on one side or both sides of the curved surface (24) of the luminous flux reflector plate (20) that has curved or curved downward. A fixed surface (25) is provided. This prevents the curved surface (24) from being crushed and deformed by screwing when fixing the luminous flux reflector (20) with the curved surface (24), and the curved surface (24) is parallel and horizontal in the longitudinal direction. Can be obtained.
(2) Bender machine or homing machine or unevenness at a position (pan screw head width) of 3 mm to 20 mm, preferably 10 mm from the side edge on one side or both sides of the circumference of the circle parallel to the longitudinal direction of the formed curved surface (24). Bend with a press including the time of formation. The bending angle is an angle that is parallel to the surface to be fixed (90), and is generally preferably 0 degrees (horizontal).
(3) By providing a fixed surface (25) around the light beam direction circle of the curved light flux reflector (20), it is possible to prevent bending in the vertical direction on the curved surface (24) of the light flux reflector (20). A mild deformation such as a strain can be obtained by fixing the surface to be fixed (90) to obtain parallel stability.
(4) When the fixed surface (25) is horizontal at 0 degree, the fixed surface (25) of the adjacent luminous flux lamp reflectors (20) is overlapped so that the horizontal direction (see the above figure) or the vertical direction (not shown) Can be linked to. For this reason, it is possible to increase the size by combining the luminous flux lamp reflector (20). Reference numeral (53) denotes a fixture for fixing the fixing surface (25) to the fixing target surface (90).
(5) In the case of connection in the vertical direction (not shown) in (4) above, the light source unit (13) irradiates the curved surface (24) from one side that is not connected or from both sides that face each other. When the light beam from 13) does not reach or when the brightness is dark, the light source unit (13) can be provided at the connecting portion to ensure the brightness.
(6) In the case of the luminous flux reflector (20) provided with the upright part (26) described later, the fixed surface (25) is provided so that it can be connected in the horizontal direction (see the figure below) or in the vertical direction (not shown). Can do. In addition, in the connection in the horizontal direction (see the following figure), the fixed surface (25) cannot be overlapped, but the connection can be reliably and easily performed by overlapping the auxiliary pieces (27, 28) described later.

Next, FIGS. 9B and 9C will be described.
(1) Standing with an angle (x) of 90 degrees or less to 90 degrees on both sides of the flat or curved reflecting surface (lamp surface) (21) of the luminous flux reflector (20) or outward. A portion (26) is provided to prevent diffusion of the light beam applied to the light flux lantern reflector (20) from the lateral direction and to project light in the direction of the lighting surface opening (y).
(2) FIG. 9 (B) right 2 shows angle (x) and lighting surface opening (y), and left 6 shows various luminous flux reflectors (20) with uprights (26) provided at 90 degrees. ).
(3) In FIG. 9C, the angle (x) of the first stage both standing parts (26) is 90 degrees, and the angle (x) of the second and third stage standing parts (26) is 90 degrees and 90 degrees. Less than 90 degrees in both angles (x) of the four-stage both standing portions (26).
(4) The length of the upright part (26) having an angle of 90 degrees or 60 degrees to 90 degrees or less provided on both sides of the luminous flux reflector (20) is provided with a space of 50 mm or more in each opening (y). Single unit type with a side length of 50 mm or more that makes it difficult to determine the effect of re-reflecting the reflecting surface (lighted surface) (21) and the afterglow of luminous flux when a transparent or milky 1-3 mm resin plate is placed There is.
(5) There is a thin shape that is incorporated into the box with a side length of 50 mm or less and a height of the upright portion.
(6) The strength of the lamp reflector is increased by providing the bent side upright portion.
(7) By changing the left and right heights of the upright portion, fixing stability and connectivity at the time of connection are provided.

Next, FIG. 9D will be described.
(1) At the tip of the standing part (26), an auxiliary piece (27, 28) bent outwardly in one or two steps is provided to prevent the standing part (26) from being deformed and the auxiliary piece. (27, 28) The light flux reflector (20) can be attached (coupled) by engaging each other.
(2) Standing part (26) Auxiliary pieces (27, 28) bent in one or two steps at the tip end have equal opening angles slightly different from each other in height to engage adjacent standing part (26) It has a fitting structure.
(3) Roller pressurization processing The so-called embossing roller is used to provide a curved luminous flux reflector (20) with raised and curved parts (26) and auxiliary pieces (27, 28) on both sides. Although it has bendability, it has almost no effect even if it is curved because the width of the bent surface is small.
(4) The upright portion (26) and the auxiliary pieces (27, 28) of the luminous lamp reflection plate formed with the concavo-convex shape may be a molding die in the resin heating method, but the luminous flux reflection having a non-heating support. The plate is formed by pressing / bender processing for each bend after forming irregularities and continuous bender / roller forming in a continuous processing apparatus.

Next, FIG. 10A will be described.
(1) Reflection surface (lamp surface) (21) of the luminous flux reflector (20) is inclined horizontally with different heights on the left and right sides to irradiate light in the target lamp reflection direction in addition to the horizontal and curved shapes (70) It can also be a reflective surface (21) (left figure) having a slanted surface (21) (center figure).
(2) Further, the entire reflection surface (21) may be inclined instead of horizontal.
This is effective for the illumination device (10) having a structure (right figure) in which the auxiliary pieces (27, 28) are hooked and attached to the surface to be fixed (90) having the attachment holes (93).
Further, FIG. 10B will be described.
(1) Various variations in the case where the luminous flux reflector (20) is used alone (single) are shown.
(2) The left side is a lighting device (10) having a structure including a decorative plate (14). In the upper two figures, the decorative board (14) is curved, and in the lower three figures, the decorative board (14) is linear. The lowermost figure shows the lighting device (10) structured to be attached to the surface to be fixed (90) having the attachment hole (93).
(3) The right side is a lighting device (10) having a structure not provided with a decorative board (14). Combining a high standing part (26) (top 2), a low part (bottom 2), a curved reflecting surface (21) (top and bottom) and horizontal (middle 2).
Further, FIG. 10C will be described.
(1) A thin illumination device (10) is shown. It is an example of a thin illuminating device (10) in which a luminous flux lamp reflector (20) having a low standing portion (26) is connected and incorporated in a housing (91).

FIG. 11 is an explanatory view showing an eighth embodiment of the present invention. 11A to 11C are cross-sectional views in the width direction (anti-longitudinal direction) of the luminous flux lamp reflector (20).
(1) First, FIG. 11A will be described.
FIGS. 11A and 11A show a case where the luminous flux lamp reflector (20) is provided with a convexly curved circle or elliptical reflecting surface (80).
FIGS. 11 (A) and 11 (b) illustrate the case where the luminous flux reflector (20) has a convexly curved circle or elliptical reflecting surface (80) and flat surfaces (81) at both ends thereof. is there.
11 (A) and 11 (c) illustrate the luminous flux lamp reflector (20) provided with a flat planar reflecting surface (82).
11 (A) and 11 (d) illustrate a light flux lamp reflector (20) provided with a bent reflection surface (83) bent in a concave shape.
11 (A) and 11 (e) illustrate a light flux lamp reflector (20) provided with a concavely curved circle or elliptical reflecting surface (84).
FIGS. 11 (A) and 11 (f) illustrate a light flux lamp reflector (20) provided with a bent reflection surface (83) bent in a concave shape. This is characterized in that the central portion is planar.
11A, 11G, and 11I illustrate the luminous flux lamp reflector 20 having a circularly or elliptically reflecting surface 84 that is curved in a concave shape. This is characterized in that the opening (85) is widened according to (g) to (i).
FIGS. 11 (A) and 11 (j) illustrate a case where the luminous flux lamp reflector (20) is provided with a concavely curved circle or elliptical reflecting surface (84). This is characterized in that the central portion is planar.

(2) Further, FIG. 11B will be described.
11 (B) and 11 (a) illustrate a case where the luminous flux lamp reflector (20) is provided with one circular or elliptical reflecting surface (84) curved in a concave shape.
11 (B) and 11 (b) illustrate the light flux lamp reflector (20) provided with two concave or curved circular or elliptical reflecting surfaces (84).
FIGS. 11B and 11C illustrate the light flux lamp reflector 20 having two bent reflecting surfaces 83 that are bent in a concave shape.
11 (B) and 11 (d) show a case in which the luminous flux reflector (20) is provided with one bent reflection surface (86) bent in a convex shape (reverse Fuji type).

(3) Further, FIG. 11C will be described.
11 (C) (a) and (b) show that the aperture (85) has a small diameter on a luminous flux reflector (20) having a concave or circularly curved or elliptical reflecting surface (84) of the same width. (A) provided with the light source unit (13) and (b) provided with the large-diameter light source unit (13) are shown.
FIGS. 11C, 11C, and 11D show a light flux reflector plate 20 having a light source unit 13 having a small diameter and a concavely curved circle or ellipsoidal reflecting surface 84. FIG. 8 shows a case where the width of the opening (85) is ½ of the entire circumference (c) and a case where the opening is about ３ of the entire circumference (d).
FIGS. 11C and 11E illustrate a concavely curved circle or ellipsoidal reflecting surface (84) having both ends linearly provided with side surfaces (87).

12 and 13 are explanatory views showing a ninth embodiment of the present invention. FIG. 12A shows an exploded view of the LED lighting device 10, and FIG. 12B shows a perspective view of the LED lighting device 10.
First, FIG. 12 will be described.
The LED illuminating device (10) is a cylindrical case member (20) having a light-transmitting part or all of a luminous flux reflector (20) provided with a concavely curved circle or elliptical reflecting surface (24). 95) to provide a pipe-type lighting device. Specifically, it comprises a luminous lamp reflector (20), a light source unit (13), and a reaching reflector (40), which are made of a transparent or milky white decorative plate (14) and a case member comprising a main body ( 95), both ends of the case member (95) are sealed with the cap member (96) to form a waterproof / drip / dust-proof structure. The cap member (96) can be reduced in the number of parts by designing an angle at which the light source unit (13) and the reaching reflector (14) can be attached. Further, the sealing structure can be ensured by using an O-ring (97) for attaching the cap member (96). Furthermore, the cap member (96) can be made of a metal such as aluminum to provide a heat dissipation effect.

Here, the case member (95) of the LED lighting device (10) is preferably as follows.
(1) An irradiation lamp surface through which light is transmitted by a transparent or milky white decorative board (14) containing milky white or yellow is preferable.
(2) It is preferably nonflammable or flame retardant. For example, a resin such as polycarbonate or ABS, or a metal (other than a transmissive portion).
(3) The shape is preferably a cylindrical shape, an ellipse, or a polygonal shape of a square or more.
(4) The luminous flux reflector (20) to be incorporated in the case member (95) is a reflection plate with a concavo-convex shape (30) formed into a concave or convex shape and designed to reflect in the target direction. Chosen from.

The pipe-type LED lighting device (10) is set on a pedestal (98) having support plates (99) at both ends, and is rotated in the circumferential direction by a support shaft (100) provided on the support plate (99). In addition to a free structure, the rotation angle is regulated by a regulating member (101) provided on the support shaft (99).
The case member (95) may be an integral type, or may have a structure in which the decorative plate (14) and the main body are separated and combined. Also, instead of the case member (95), a part or all of the light transmitting reflector plate (20) having a concavely curved circle or ellipsoidal reflecting surface (24) has a light-transmitting attachment. It may have a structure for attaching a member (not shown). In this case, the luminous flux reflector (20) serves as the main body of the case member (95).

Next, FIG. 13 will be described.
FIG. 13 illustrates that the LED lighting device 10 illustrated in FIG. 12 has a structure that can freely rotate in the circumferential direction. As shown in the figure, the light irradiated from the opening of the luminous flux reflecting plate (20) having a concavely curved circle or elliptical reflecting surface (24) can be irradiated in the rotated direction. Thereby, it is possible to efficiently irradiate light in a target irradiation direction without selecting an attachment place of the LED illumination device (10). For example, the LED illumination device (10) on the left side of FIG. 13 is installed closer to the wall, but by rotating inward, light can be emitted within the same range as the LED illumination device (10) on the right side of FIG. Can be irradiated. In addition, it is possible to intentionally reflect the light on the ceiling or wall surface to give an interior effect or a production effect.

FIG. 14 is an explanatory view showing a tenth embodiment of the present invention. FIG. 14 shows an LED illuminating device (10) connected in series.
First, FIG. 14A will be described.
(1) In the two-connected surface light emitter (LED lighting device) provided with the reaching reflector (40) for back-to-back, it is possible to eliminate the shadow difference caused by the connecting portion generated on the decorative plate (14).
(2) In this case, the mounting position of the LED (11) is lowered. That is, the ultimate reflecting plate (40) and its support are 5 to 10 mm lower than the decorative plate (14). Further, the angle of the reaching reflector (40) is a position that is 2/3 to 1/10 in the longitudinal direction, preferably 1/5 in front of the light emitting portion facing each other and ahead of the center point of the luminous flux reflector (20). The optimal downward angle at which the most advanced light beam of the arrival reflector (40) returns is set at the bottom (the upper part of the lowered arrival reflector (40) is 3 mm of the outer fold or the bending reinforcement is eliminated). A white cylinder or semicircular or elliptical light diffuser (41) having a thickness capable of leaving a gap of 2 mm to 5 mm may be provided on the lower back-to-back reaching reflector (40).

Next, FIG. 14B will be described.
(1) Even if the light source unit (13) and the reaching reflector (40) are connected so as to be back-to-back, surface light emission with reduced shading difference can be achieved as in FIG. 14 (A).
(2) With this combination, the LED can be extended to an infinite length even in the series direction of the LEDs (only two connections when the ultimate reflector (40) is back to back).
(3) In addition, by providing a dimming member (42) such as a dimming plate or dimming tube for blocking and attenuating part of the LED light directly above the lens and reflector constituting the light source unit (13). The illuminance of the decorative plate (14) in contact with the light source portion can be lowered to realize surface emission with uniform illuminance (the same applies to FIG. 14A).

FIG. 15 is an explanatory view showing an eleventh embodiment of the present invention. 15A illustrates the lens installation angle when the luminous flux reflector 20 is 400 mmL or less in the longitudinal direction, and FIG. 15B illustrates the lens installation angle when 400 mmL or more.
(1) First, FIG. 15A will be described. For the luminous flux lamp reflector (20) having a length of 400 mm or less in the longitudinal direction, the lens angle (light source unit (13)) with respect to the luminous flux reflector reflector (20) as a horizontal reference is 3 degrees or more from a right angle. Installed at an angle at which part or all of the light in the upper half from the center line of the light beam that is installed downward at a degree or less and irradiated in a conical shape is applied to the lower or central part of the reaching reflector (40). It is preferable.
(2) Next, FIG. 15B will be described. For a luminous flux lamp reflector (20) having a length of 400 mm or more in the longitudinal direction, the lens angle (light source unit (13)) with respect to the luminous flux reflector reflector (20) as a horizontal reference is a right angle or less than 5 degrees. It is preferable to install at an angle at which part or all of the light in the upper half from the center line of the light beam that is installed downward and irradiated in a conical shape is applied to the lower part or the central part of the reaching reflector (40). .
(3) Particularly, in the luminous flux lamp reflector (20) having a length of 400 mmL or more in the longitudinal direction, the light emitted from the light source unit (13) is "light that projects the luminous flux reflector (20)" It can be divided into "light for lighting the reflector (40)" and "light for lighting the decorative board (lamp surface) (14)". When the luminous flux reflector (20) is divided into the front part, the intermediate part and the rear part, the light emitted from the light source unit (13) in a conical shape is in front of the intermediate part and the rear part (on the light source unit side). (Mountain) of the uneven shape (30) Install at the angle where the top of the head is brightest. At the same time, the light received by the arrival reflector (40) is reflected by the arrival reflector (40) provided downward, and as viewed from the light source unit (13) side, the rear reflector and the rear reflector (40) The side uneven shape (30) is installed at an angle where the top of the head is brightest, and the light irradiated from one side (light from the light source unit (13)) is the uneven shape on the light irradiation side (30) the top of the head, Light is irradiated on the top and bottom of the uneven shape (30) on the light reflecting side, and light from a unidirectional light source is applied to the uneven shape (30) of the luminous flux lamp reflector (20) from two directions.

10 LED lighting device (lighting device)
11 LED
12 board circuit part 13 light source unit 14 decorative board 20 luminous flux shadow reflection board (free light diffusion control board)
21 Reflecting surface 22 Opening portion 23 Bending piece 24 Curved surface 25 Fixed surface 26 Standing portion 27 Auxiliary piece (one step)
28 Auxiliary piece (2 steps)
30 Uneven shape 301 Uneven shape (linear) 302 Uneven shape (dot)
31 Coloring (blue)
32 Coloring (red)
40 Reaching plate 41 Light diffuser 42 Dimming member 50 Standing plate fixing bar 51 Auxiliary plate 52 Fastener 53 Fixing tool 60 Light introduction body 61 Uneven shape 62 Fine uneven shape 70 Inclination angle 71 Inclined surface 80 Curved in a convex shape Rounded or elliptical reflecting surface 81 Smooth surface 82 Planar reflecting surface 83 Curved reflecting surface 84 curved in a concave manner Circularly curved or elliptical reflection 85 curved in a concave shape 85 Opening 86 Curved reflecting surface 87 curved in a convex shape Side surface 90 Fixed surface 91 Housing 93 Mounting hole a Obtuse angle (entire light incident angle)
b Outer line of luminous flux c Total uneven bending difference (Unevenness difference = depth)
d Reflected light e Linear light f Transmitted light g Reflected light h Reflected light (radial)
i Luminous flux (one direction)
j Light flux (other light)
k Incident light m Reflected light x Standing angle of standing part y Lighting surface opening part 95 Case member 96 Cap member 97 O-ring 98 Base 99 Support plate 100 Support shaft 101 Restricting member

Claims (20)

In the illumination device (10) for emitting light from the point light source emitted by the LED,
LED (11) to be a light source,
A board circuit section (12) provided on the board with a circuit for lighting the LED (11);
A light source unit (13) comprising a lens or / and a reflector having a function of expanding the light emitted from the LED (11) and suppressing the diffusion of the light to convert it into a light beam that is a bundle of light;
A luminous flux reflector (20) for illuminating the luminous flux emitted from the light source unit (13),
A decorative board (14) having a light transmission function as an exterior part of the light emitting surface of the lighting device (10),
One or two or more light source units (13) are installed on one or more upper extended lines of the luminous flux lamp reflector (20), and the luminous flux emitted from the light source unit (13) is reflected by the luminous flux reflector. (20) the light source unit (13) side reflection surface (21) is installed so that the light incident angle (a) is incident on the entire surface,
The luminous flux shadow reflecting plate (20) has a linear cross section in the luminous flux direction, and an uneven shape for scattering the luminous flux emitted from the light source unit (13) to the decorative plate (14) with uniformly controlled light. (30) An LED lighting device (10) comprising: In the illumination device (10) for emitting light from the point light source emitted by the LED,
LED (11) to be a light source,
A board circuit section (12) provided on the board with a circuit for lighting the LED (11);
A light source unit (13) comprising a lens or / and a reflector having a function of expanding the light emitted from the LED (11) and suppressing the diffusion of the light to convert it into a light beam that is a bundle of light;
A luminous flux reflector (20) for illuminating the luminous flux emitted from the light source unit (13),
One or two or more light source units (13) are installed on one or more upper extended lines of the luminous flux lamp reflector (20), and the luminous flux emitted from the light source unit (13) is reflected by the luminous flux reflector. (20) the light source unit (13) side reflection surface (21) is installed so that the light incident angle (a) is incident on the entire surface,
The luminous flux shadow reflector (20) has a linear cross section in the luminous flux direction, and an uneven shape (30) for scattering the luminous flux emitted from the light source unit (13) with light uniformly controlled in the target irradiation direction. LED lighting device (10), characterized in that   3. The LED lighting device according to claim 1, wherein the luminous flux lamp reflector (20) has a reflective surface having a white color, a color color system other than a white color system, or a mirror surface color made of silver or gold. (Ten).   The said luminous flux shadow reflecting plate (20) is the uneven | corrugated shape (30) which has the continuity formed in the linear or / and the dotted | punctate or non-geometric pattern, Any one of Claim 1 to 3 characterized by the above-mentioned. The LED lighting device (10) according to claim 1.   5. The LED illumination according to claim 1, wherein the luminous flux reflection plate (20) has a reflective surface (21) on one side or both sides, and the reflective surface (21) has an uneven shape. Device (10).   The luminous flux reflector (20) includes a light transmitting body (60) having a light-transmitting surface having an opening (22) in the reflection surface (21) and having an uneven light receiving surface in the opening (22). The LED illumination device (10) according to any one of claims 1 to 5, characterized in that is fitted.   The LED lighting device according to any one of claims 1 to 6, wherein the luminous flux shadow reflector (20) includes a curved surface (24) having a curved shape that swells in a lateral width direction intersecting with a luminous flux direction. (Ten).   The LED lighting device (10) according to claim 7, wherein the luminous flux reflector (20) includes a flat fixed surface (25) symmetrically with respect to the light flux direction of the curved surface (24).   The LED lighting device (10) according to any one of claims 1 to 8, wherein the luminous flux lamp reflector (20) includes an upright portion (26) in which both right and left ends of the luminous flux direction are raised.   The LED lighting device (10) according to claim 9, wherein the luminous flux reflector (20) includes an auxiliary piece (27, 28) in which a tip of the upright portion (26) is bent outward.   The LED illumination device (10) according to any one of claims 1 to 10, wherein the light source unit (13) has an irradiation angle within 15 degrees.   The luminous flux reflection plate (20) includes a planar planar reflection surface (82) or a concave or convex curved or elliptical reflection surface (24) in the lateral width direction intersecting the luminous flux direction. The LED lighting device (10) according to any one of claims 1 to 11.   The luminous flux reflector (20) includes a circularly curved or elliptical reflecting surface (24) curved in a concave shape, and a part or all of it is installed in or in a cylindrical case member having optical transparency. The LED illumination device (10) according to claim 12, wherein the LED illumination device (10) is attached to an attachment member having light transmission properties.   14. The LED lighting device according to claim 13, wherein the LED lighting device has a sealed structure.   The LED lighting device (10) according to claim 13 or 14, wherein the LED lighting device (10) is rotatable in a circumferential direction.   The said light source unit (13) is equipped with the light reduction member for attenuating the light irradiated to a decorative board (14) directly from a light source unit (13), The one of Claim 1 to 15 characterized by the above-mentioned. LED lighting device according to (10).   A reaching reflector (40) for re-reflecting the light emitted from the light source unit (13) to the opposite side of the luminous flux lamp reflector (20) to the luminous flux lamp reflector (20). Item 17. The LED illumination device (10) according to any one of items 1 to 16.   18. The LED lighting device (10) according to claim 17, wherein the reaching reflectors (40) are connected back to back.   18. An LED lighting device according to claim 17, wherein the LED lighting device (10) is connected so that the light source unit (13) and the reaching reflector (40) are back to back.   The light source unit (13) irradiates a part or all of the upper half light from the center line of the light beam conically irradiated from the light source unit (13) to the lower part or the center part of the reaching reflector (40). 20. The LED lighting device (10) according to any one of claims 17 to 19, wherein the LED lighting device (10) is installed at an angle.

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