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WO2014084079A1 - Module d'éclairage, dispositif d'éclairage de porte et dispositif d'éclairage de fenêtre - Google Patents

Module d'éclairage, dispositif d'éclairage de porte et dispositif d'éclairage de fenêtre Download PDF

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Publication number
WO2014084079A1
WO2014084079A1 PCT/JP2013/081036 JP2013081036W WO2014084079A1 WO 2014084079 A1 WO2014084079 A1 WO 2014084079A1 JP 2013081036 W JP2013081036 W JP 2013081036W WO 2014084079 A1 WO2014084079 A1 WO 2014084079A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
guide plate
led
light emitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/081036
Other languages
English (en)
Japanese (ja)
Inventor
栗本　英治
和也 生田
花野　雅昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of WO2014084079A1 publication Critical patent/WO2014084079A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2417—Light path control; means to control reflection
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/247—Electrically powered illumination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an illumination module, a door illumination device, and a window illumination device that allow light to enter from a plurality of end faces.
  • ground glass or ground glass-like resin is often used for doors and windows in houses and the like in consideration of visibility and daylighting.
  • ground glass and ground glass-like resin are translucent, they are inferior to transparent members in terms of visibility from both sides.
  • Patent Document 1 a bathroom door that is shielded as necessary while applying a transparent member to the bathroom door is known.
  • the bathroom door disclosed in Patent Document 1 is a bathroom door that incorporates a transparent surface material having a double structure that partitions the bathroom and the dressing room, and has an ultra-bright LED on the upper portion between the transparent surface materials. By arranging and energizing, light is emitted and guided to the transparent surface material, and the transparent surface material is shielded from light.
  • the present invention has been made in view of the above-described conventional problems, and the object thereof is to suppress power consumption and ensure light-shielding properties on the entire surface, and to switch between light-transmitting and light-shielding front and back surfaces.
  • Another object of the present invention is to provide an illumination module, a door illumination device, and a window illumination device capable of stepwise switching between translucency and light shielding properties and adjusting the brightness of illumination.
  • an illumination module guides light incident from a plurality of end surfaces and emits light from a light exit surface, and the light guide member described above.
  • An illumination module comprising: a first light source that makes light incident on a first end surface of an optical member; and a second light source that makes light incident on a second end surface of the light guide member, the light guide member.
  • the light guide member which is a surface opposite to the light output surface, which is a light output structure part for guiding a part of the light guided inside the light guide member to the light output surface side and emitting the light to the outside from the light output surface At least on the back surface, and the light emission structure portion has different light emission characteristics between the light from the first light source and the light from the second light source, and the first light source and the light source
  • the second light source is capable of independently controlling the amount of light incident on the light guide member. It is characterized.
  • the lighting module described above is provided.
  • the window illumination device is characterized by including the illumination module described above.
  • power consumption can be suppressed and light-shielding properties of the entire surface can be secured, and the front and back surfaces of light-transmitting properties and light-shielding properties can be switched.
  • (A) is a front view which shows the structure of the illumination module which concerns on Embodiment 1 of this invention
  • (b) is the sectional view on the AA 'line of (a)
  • (c) is (a). It is a BB 'line sectional view.
  • (A) is a front view which shows the structure of the said illumination module
  • (b) is a side view which shows the structure of an illumination module
  • (c) is a principal part side view which shows the structure of an illumination module.
  • (A) is sectional drawing which shows the structure of the light-guide plate seen from the side orthogonal to the incident direction of the 2nd light source in the said illumination module, and the light guide direction of light
  • (b) is the incident direction of the 1st light source. It is sectional drawing which shows the structure of the light-guide plate seen from the side orthogonal to, and the light guide direction of light. It is a graph which shows the relationship between the angle of the side wall of the light emission structure part which consists of a recessed part in the said illumination module, and the light intensity of the light taken out from a light-projection surface.
  • (A) is a front view which shows the structure of the illumination module which concerns on Embodiment 2 of this invention
  • (b) is the sectional view on the AA 'line of (a)
  • (c) is (a). It is a BB 'line sectional view.
  • (A) is sectional drawing of the light-guide plate which shows the optical path of the reflected light in the light emission structure part by the 1st light source in the said illumination module
  • (b) is the reflected light in the light emission structure part by a 2nd light source. It is sectional drawing of the light-guide plate which shows this optical path.
  • (A) is a side view which shows the illumination state when the 1st light source is lighted in the door lighting device provided with the said illumination module, (b) is when the 2nd light source is lighted in this door lighting device It is a side view which shows an illumination state, (c) is a side view which shows an illumination state when both the 1st light source and the 2nd light source are lighted in this door illumination device.
  • (A) is a front view which shows the structure of the illumination module which concerns on Embodiment 3 of this invention, (b) shows the structure of the light-projection structure part which consists of a recessed part arrange
  • (c) is a figure which shows the structure of the light-projection structure part which consists of a recessed part arrange
  • (A) is a front view which shows the illumination state when both the 1st light source and 2nd light source in the said illumination module are lighted,
  • (b) is when the 1st light source in the said illumination module is lighted.
  • (c) is a front view which shows an illumination state when the 2nd light source in the said illumination module is lighted.
  • (A) is sectional drawing which shows the non-lighting state in the window illuminating device provided with the illumination module which concerns on Embodiment 4 of this invention, (b) shows the lighting state in the window illuminating device provided with the said illumination module. It is sectional drawing.
  • the illumination module of the present invention is used for, for example, a door illumination device attached to a residential door.
  • the door lighting device of the present invention may be fitted to a part of the door or may constitute the door itself.
  • the door lighting device can be applied to a door for a store, an office door, or various facilities in addition to a door for a house such as an entrance door and a bath door.
  • the illumination module of the present invention can be applied not only to door illumination devices but also to window illumination devices for windows including skylights.
  • FIG. 2 is a front view which shows the structure of an illumination module.
  • FIG. 2B is a side view showing the configuration of the illumination module.
  • FIG. 2C is a side view of the main part showing the configuration of the illumination module.
  • the illumination module 1A of the present embodiment includes a light guide plate 10 as a light guide member, a protective glass 3, and an LED (Light Emitting Diode: light source).
  • a light emitting diode) 4 a light guide plate holding portion 5, and a frame 6.
  • the lighting module 1A is attached to a door provided on a wall that partitions two rooms.
  • the light emitted from the LED 4 is guided by the light guide plate 10 and mainly emitted from the surface of the light guide plate 10 and the first surface 11 as the light exit surface.
  • the light guide plate 10 is fixed to the frame 6 by being fitted into a groove formed in the light guide plate holding portion 5.
  • the shape of the 1st surface 11 and the 2nd surface 12 of the light-guide plate 10 consists of a square, for example.
  • the shape of the light guide plate 10 does not necessarily need to be a square, and may be other polygons or other figures such as a circle.
  • the light guide plate 10 does not need to be a flat plate, and may be curved.
  • the light guide plate 10 is made of a synthetic resin having a high transmittance such as a methacrylic resin, an acrylic resin, a polycarbonate resin, a polyester resin, or a vinyl chloride resin, and has translucency. For this reason, when the LED 4 is not lit, the light from one room passes through the light guide plate 10 and enters the other room. Therefore, it becomes possible to face each other's room from both rooms.
  • a synthetic resin having a high transmittance such as a methacrylic resin, an acrylic resin, a polycarbonate resin, a polyester resin, or a vinyl chloride resin
  • the light emission structure part 13 which consists of a recessed part is provided in the 2nd surface 12 of the light-guide plate 10, and it was radiate
  • Light distribution control (orientation control) of light is performed.
  • the light emitting structure portion 13 formed of a recess is an optical member that changes the propagation direction of light propagating through the light guide plate 10, and a plurality of recesses having substantially the same shape are formed on the second surface 12.
  • the concave portions are formed in a matrix at intervals of about 250 ⁇ m on the second surface 12 of the light guide plate 10.
  • One recess has a depth of 15 ⁇ m, for example, having an opening of 30 ⁇ m in length and 30 ⁇ m in width.
  • the occupation ratio of the recesses with respect to the second surface 12 is 1.4%, for example, but the occupation ratio may be set as appropriate. If the occupation ratio increases, the translucency of the light guide plate 10 decreases, and the visibility when an indoor object is viewed through the light guide plate 10 even when the LED 4 is not turned on decreases. On the contrary, if the occupation ratio is low, the translucency of the light guide plate 10 is increased. However, since light emitted from the light guide plate 10 is reduced, it is necessary to make appropriate settings. The details of the concave portion of the light emitting structure 13 will be described later.
  • the protective glasses 3 and 3 are glass plates for protecting the light guide plate 10, and are disposed on the first surface 11 side and the second surface 12 side of the light guide plate 10, respectively.
  • the position of the protective glass 3 is fixed by being sandwiched between the light guide plate holding part 5 and the frame 6.
  • the protective glass 3 may have an infrared cut function and / or an ultraviolet cut function.
  • the protective glass 3 is effective as a building material structure in view of incombustibility and flame retardancy, environmental resistance, crime prevention, etc., but is not limited to glass depending on the application, and is not limited to synthetic resin or thin film metal. Etc. can also be used.
  • the protective glass does not need to be colorless and transparent, and can be given design by coloring or decoration.
  • the LED is a light source for illumination.
  • the LED is disposed in the vicinity of at least two sides of the light guide plate 10 as shown in FIG. FIG. 2B shows only the LEDs 4 arranged in the vicinity of the vertically lower end of the light guide plate 10 in a state in which the illumination module 1A is attached to the door.
  • substrate of LED4 is arrange
  • the output of the LED 4 is not particularly limited, but is set to an output that can obtain a privacy protection effect by the light emitted from the first surface 11. It is good also as a structure which a user can adjust the output of LED4.
  • the light emitted from the LED 4 may be visible light (400 nm or more and 780 nm or less), for example, white, but the color of the light is not particularly limited. Switching of lighting / non-lighting of the LED 4 is performed by a power supply control device that controls supply of driving power supplied to the LED 4, and the power supply control device may be inside or outside the lighting module 1A. .
  • the power control device is, for example, a switch disposed on an indoor wall surface.
  • the power can be supplied via a metal hinge, supplied by a non-contact method, supplied by a battery installed in the door, supplied by a solar cell integrated with the lighting module, etc. It is.
  • the LED 4 may be an LED bar in which a plurality of LEDs are arranged on a common substrate, or individual LED substrates may be arranged. Moreover, you may use combining multiple types of LED4 which radiate
  • a light source other than an LED may be used as a light source for illumination.
  • a combination of a semiconductor laser and a phosphor may be used as the light source.
  • the light guide plate holding unit 5 holds the light guide plate 10 to fix the relative position of the light guide plate 10 with respect to the frame 6.
  • the light guide plate holding part 5 may be a part of the frame 6.
  • the material of the light guide plate holding portion 5 is, for example, metal, and in particular, aluminum is preferable from the viewpoint of weight reduction and heat dissipation, but is not particularly limited.
  • the light guide plate holding unit 5 may hold at least one of the four sides of the light guide plate 10, but by holding the vertical upper end of the light guide plate 10, the vertical lower end The light guide plate 10 can be held more stably than holding.
  • the frame 6 is a member that forms the outer frame of the lighting module 1A, and is made of a metal such as aluminum (Al).
  • the material of the frame 6 is not particularly limited.
  • the lighting module 1A (Lighting module's translucent / light-shielding switching control and lighting brightness adjustment)
  • the illumination module, the door illumination device, and the window illumination can be switched between the translucent and light-shielding front and back surfaces, and the light-transmissive and light-shielding properties can be switched stepwise and the brightness of the illumination can be adjusted.
  • a device is to be provided.
  • FIG. 1A is a front view showing the configuration of the illumination module 1A.
  • FIG. 1B is a cross-sectional view taken along line A-A ′ of FIG.
  • FIG. 1C is a cross-sectional view taken along line B-B ′ of FIG.
  • the LEDs 4 as the light sources are respectively provided along two sides of the rectangular light guide plate 10 as shown in FIG.
  • One is a first LED 4 a as a first light source disposed on a first end face 10 a which is one side end face of the light guide plate 10, and the other is a second end face 10 b which is the other side end face of the light guide plate 10.
  • 2nd LED4b as a 2nd light source arrange
  • the first LED 4 a and the second LED 4 b are disposed on the second end surface 10 b orthogonal to the first end surface 10 a of the rectangular light guide plate 10.
  • the present invention is not necessarily limited thereto, and the first LED 4a and the second LED 4b may be provided at a pair of end portions of the light guide plate 10 facing each other.
  • the two light sources are provided at the end portions of the two sides of the light guide plate 10.
  • the present invention is not limited thereto, and is provided at the end portions of the other side of the light guide plate 10. It may be. That is, in this embodiment, it is necessary to provide at least two at the end portions of the two sides of the light guide plate 10.
  • the illumination module 1A of the present embodiment light is incident from the first end surface 10a and the second end surface 10b of the light guide plate 10 in two different directions using the first LED 4a and the second LED 4b.
  • the light emission structure part 13 is formed in the 2nd surface 12 which is the back surface of the light-guide plate 10 at least. . 1A, 1 ⁇ / b> B, and 1 ⁇ / b> C show the case where the light emitting structure 13 is provided only on the back surface of the light guide plate 10.
  • a configuration in which the light emitting structure 13 is formed on both the back surface and the front surface of the light guide plate 10 will be described in a second embodiment to be described later.
  • the light emitting structure 13 provided on the back surface of the light guide plate 10 causes each light incident from the first LED 4 a and the second LED 4 b to guide the inside of the light guide plate 10, and a part of the light is transmitted by the light emitting structure 13.
  • the light is guided to the first surface 11 side, which is an emission surface, and is emitted from the first surface 11 to the outside.
  • FIG. 3 is a perspective view showing a configuration of a light emitting structure portion formed of a concave portion.
  • 4A is a cross-sectional view showing the configuration of the light guide plate and the light guide direction as viewed from the side perpendicular to the incident direction of the second light source, and FIG. 4B is the incident light of the first light source. It is sectional drawing which shows the structure of the light-guide plate seen from the side orthogonal to a direction, and the light guide direction of light.
  • FIG. 5 is a graph showing the relationship between the angle of the side wall of the light emitting structure 13 formed of a concave portion and the light intensity of light extracted from the light emitting surface.
  • the light emission structure 13 can be composed of a plurality of recesses formed on the back surface of the light guide plate 10.
  • the light emission structure part 13 which consists of a several recessed part formed in the 2nd surface 12 which is the back surface of the light-guide plate 10 functions as a reflecting prism, light emission surface is reflected by reflecting light to the light emission surface side. It is possible to emit light from the first surface 11.
  • the side wall of the light emitting structure portion 13 formed of the concave portion is inclined with respect to the second surface 12 that is the back surface of the light guide plate 10. It has a shape. Further, the inclination angle ⁇ is different in two directions, ie, the direction of light from the first LED 4a and the direction of light from the second LED 4b. That is, the inclination angle ⁇ formed between the side wall of the recess in the light emitting structure 13 and the second surface 12 of the light guide plate 10 is different between the side wall on the first LED 4a side and the side wall on the second LED 4b side.
  • the concave portion when viewed from the side orthogonal to the incident direction of the first LED 4a, for example, it is a triangle as shown in FIG. 4A, while the concave portion is formed from the side orthogonal to the incident direction of the second LED 4b.
  • the inclination angle ⁇ of the inclined surface of the side wall on the first LED 4a side and the second LED 4b side in the recess is an acute angle or 90 ° with respect to the back surface of the light guide plate 10 from the light emitting surface. This is preferable from the viewpoint of control of the outgoing angle of outgoing light and ease of drilling.
  • the inclination angle ⁇ of the side wall of the recess in the light emitting structure 13 is different in two directions, that is, the direction of the light from the first LED 4a and the direction of the light from the second LED 4b. be able to.
  • the light emission direction can be made different from light in two directions due to the difference in the inclination angle ⁇ .
  • the inclination angle ⁇ of the side wall of the light emitting structure portion 13 formed of the recesses different from each other with respect to light in two directions, the light emission rate from the first surface 11 that is the light emission surface is made different. Can be.
  • the inclination angle ⁇ of the side wall of the recess shown in FIG. 4A is smaller than the inclination angle ⁇ of the side wall of the recess shown in FIG. It has become.
  • the amount of extraction from the first surface 11 and the outgoing light can be controlled.
  • the angle can be controlled.
  • the relationship between the inclination angle ⁇ of the side surface of the light emitting structure 13 formed of a concave portion and the light intensity of light extracted from the first surface 11 that is the light emitting surface is as shown in FIG.
  • the light emission rate is the highest when the inclination angle ⁇ of the side wall of the light emitting structure 13 formed of the recess is around 50 °, and 10 minutes when the inclination angle ⁇ is around 80 °.
  • the light output rate is about 1.
  • the reason for this is that light is reflected perpendicularly to the first surface 11 that is the light emitting surface when the inclination angle ⁇ is around 50 °, so that the entire surface of the light guide plate 10, that is, the first surface 11 that is the light emitting surface, is all. This is because the reflection condition is broken and the light is easily emitted to the outside.
  • the light emitting angle and the light emitting rate can be controlled simultaneously.
  • the projection area on the first LED 4a side and the projection area on the second LED 4b side of the side wall of the light emitting structure portion 13 formed of the recesses can be different from each other.
  • the inclination angle ⁇ of the side wall of the recess may be different or the same.
  • the light emission characteristics can also be obtained by changing the projected area of the side wall of the light emitting structure portion 13 formed of the concave portion in two directions, that is, the direction of the light from the first LED 4a and the direction of the light from the second LED 4b. Can make a difference.
  • the light emitting structure portion 13 formed of a concave portion a rectangular parallelepiped concave shape that is long in one direction is formed.
  • the light emission rate is substantially proportional to the projection area, the light emission rate can be made different for light in two directions by making the projection areas different from each other.
  • the light emission angle and the light emission rate are made appropriate by combining the inclination angle ⁇ of the side wall of the light emission structure portion 13 formed of the recess and the projection area.
  • the light from the first LED 4a and the second LED 4b are formed with a simple configuration in which the light emitting structure portion 13 formed of a recess is formed on the second surface 12 that is the back surface of the light guide plate 10.
  • the light emission structure portion 13 having a light emission characteristic different from that of the light from can be formed.
  • the following describes the light-shielding / light-shielding switching control and the illumination brightness adjustment of the illumination module 1A configured as described above.
  • the light emission structure portion 13 is formed only on the second surface 12 that is the back surface of the light guide plate 10, and the light emission structure portion 13 is formed of recesses having different inclination angles ⁇ of the two side walls. .
  • the light-projection structure part 13 when it sees from the 1st LED4a side consists of a recessed part of cross-sectional trapezoid. For this reason, most of the light guided inside the light guide plate 10 by the first LED 4a is emitted as the emitted light La1 from the first surface 11 of the light guide plate 10, but the intensity of the emitted light La1 is not so large.
  • the emitted light La2 is only slightly emitted from the second surface 12 of the light guide plate 10.
  • the light emitting structure 13 when viewed from the second LED 4b side is formed of a concave portion having a triangular cross section. For this reason, most of the light guided through the light guide plate 10 by the second LED 4b is emitted as the emitted light Lb1 from the first surface 11 of the light guide plate 10. In this case, the intensity of the emitted light Lb1 is high. Note that the emitted light Lb2 is only slightly emitted from the second surface 12 of the light guide plate 10.
  • the illumination module 1A when the illumination module 1A is viewed from the outside of the light guide plate 10 on the first surface 11 side, the light guide plate 10 becomes a planar light-emitting body, so that the light-transmitting property is lost and the light-shielding property is obtained. .
  • the illumination module 1A when the illumination module 1A is viewed from the outside on the second surface 12 side, which is the back surface of the light guide plate 10, only a small amount of light is emitted from the light guide plate 10 so that it has translucency and is guided.
  • the outside of the light guide plate 10 on the first surface 11 side can be seen from the second surface 12 side which is the back surface of the light plate 10.
  • the illumination module 1A has translucency. If either one of the first LED 4a or the second LED 4b or both the first LED 4a and the second LED 4b are turned on, the illumination module 1A has a light shielding property from the outside on the first surface 11 side of the light guide plate 10, The light guide plate 10 has translucency from the outside on the second surface 12 side. Therefore, it is possible to switch between the light transmitting property and the light shielding property from the outside of the light guide plate 10 on the first surface 11 side.
  • the first LED 4a and the second LED 4b can control the amount of light incident on the light guide plate 10 independently. Thereby, a difference can be provided in the brightness radiate
  • the ratio of the brightness of the light emitted from the first surface 11 of the light guide plate 10 to the brightness of the light emitted from the second surface 12 can be changed to 3: 1 to 10: 1 or the like.
  • an illumination module 1A that can adjust the brightness of illumination.
  • the fact that the brightness of the illumination can be adjusted means that the light-transmitting property and the light-shielding property can be switched stepwise.
  • the second LED 4b since light is incident on the light guide plate 10 from two directions using the first LED 4a and the second LED 4b, the second LED 4b emits light in a region where the amount of light far from the first LED 4a is insufficient. Can be supplemented. For this reason, light can be sufficiently emitted from the entire region of the first surface 11 of the light guide plate 10, so that the light shielding property of the entire surface can be ensured. Furthermore, light is incident on the light guide plate 10 from two directions using the first LED 4a and the second LED 4b, rather than increasing the amount of power and making the light amount sufficient even in a region where the light amount in the distance is insufficient only by the first LED 4a. As a result, the amount of power is reduced.
  • An illumination module 1A that can adjust the brightness of illumination can be provided.
  • the light emitting structure portion 13 is formed only on the second surface 12 that is the back surface of the light guide plate 10 that faces the first surface 11 that is the light emitting surface of the light guide plate 10. It was. However, in the illumination module 1B of the present embodiment, as shown in FIGS. 6B and 6C, the light emission structure 13 is provided on the first surface 11 that is the light emission surface of the light guide plate 10. In addition, the light emitting structure 13 is also provided on the second surface 12 which is the back surface of the light guide plate 10.
  • both the second surface 12 that is the back surface of the light guide plate 10 and the light emitting structure 13 are different from each other in the inclination angle ⁇ of the two-side sidewalls provided on the first surface 11 that is the light emitting surface of the light guide plate 10. It is the light emission structure part 13 which consists of a recessed part.
  • FIG. 6A is a front view showing the configuration of the illumination module 1B.
  • FIG. 6B is a cross-sectional view taken along the line A-A ′ of FIG.
  • FIG. 6C is a cross-sectional view taken along line B-B ′ of FIG.
  • FIG. 7A is a cross-sectional view of the light guide plate 10 showing the optical path of the reflected light at the light emitting structure 13 by the first LED 4a
  • FIG. 7B is the reflection at the light emitting structure 13 by the second LED 4b. It is sectional drawing of the light-guide plate 10 which shows the optical path of light.
  • the illumination module 1B according to the present embodiment is similar to the illumination module 1A according to the first embodiment, in which the light source is at the end of the two sides of the rectangular light guide plate 10.
  • a first LED 4 a as a first light source is disposed on a first end surface 10 a that is one side end surface of the light guide plate 10.
  • a second LED 4 b as a second light source is disposed on the second end surface 10 b that is the other side end surface of the light guide plate 10.
  • the first LED 4a and the second LED 4b are arranged on the second end face 10b orthogonal to the first end face 10a of the rectangular light guide plate 10.
  • the present invention is not necessarily limited thereto, and the first LED 4a and the second LED 4b may be provided at a pair of end portions of the light guide plate 10 facing each other.
  • the two light sources are provided at the end portions of the two sides of the light guide plate 10.
  • the present invention is not limited thereto, and is provided at the end portions of the other side of the light guide plate 10. It may be. That is, in this embodiment, it is necessary to provide at least two at the end portions of the two sides of the light guide plate 10.
  • the illumination module 1A of the present embodiment light is incident from the first end surface 10a and the second end surface 10b of the light guide plate 10 in two different directions using the first LED 4a and the second LED 4b.
  • the illumination module 1B of the present embodiment As shown in FIGS. 6B and 6C, light is emitted to both the second surface 12 that is the back surface of the light guide plate 10 and the first surface 11 that is the surface. Structure parts 13 and 13 are provided.
  • the light emitting structure portion 13 formed on the second surface 12 which is the back surface of the light guide plate 10 is formed of a concave portion having a triangular cross section. Further, the light emitting structure portion 13 formed on the first surface 11 which is the surface of the light guide plate 10 is formed of a concave portion having a trapezoidal cross section.
  • the light emitting structure 13 formed on the second surface 12 which is the back surface of the light guide plate 10 is formed of a concave portion having a trapezoidal cross section and is the surface of the light guide plate 10.
  • the light emitting structure portion 13 formed on the first surface 11 is formed of a concave portion having a triangular cross section.
  • the illumination module 1B having the light emitting structure 13 in which the concave portions are formed on both surfaces of the light guide plate 10 having the above-described configuration when the first LED 4a is turned on, as shown in FIG. High-intensity emitted light La1 is mostly emitted from the first surface 11 by the light emitting structure 13 formed of a concave portion having a triangular cross section formed on the second surface 12 of the tenth surface.
  • the second LED 4b is turned on, as shown in FIG. 7B, most of the light is emitted by the light emitting structure portion 13 formed of a concave portion having a triangular cross section formed on the first surface 11 of the light guide plate 10. High intensity outgoing light Lb ⁇ b> 2 is emitted from the second surface 12.
  • the door lighting device 20 including the lighting module 1B of the present embodiment when the first LED 4a is turned on, the room A on the first surface 11 side of the light guide plate 10 as shown in FIG. The side is illuminated.
  • the illumination module 1B when the illumination module 1B is viewed from the outside on the first surface 11 side of the light guide plate 10, the light guide plate 10 becomes a planar light-emitting body, so that the light transmission property is lost and the light shielding property is obtained. . Further, when the illumination module 1B is viewed from the outside on the second surface 12 side, which is the back surface of the light guide plate 10, only a small amount of light is emitted from the light guide plate 10 and thus has light-transmitting properties. The outside of the light guide plate 10 on the first surface 11 side can be seen from the second surface 12 side which is the back surface of the light plate 10.
  • the light guide plate 10 becomes a planar light-emitting body, so that it does not transmit light and has a light shielding property. . Further, when the illumination module 1B is viewed from the outside of the first surface 11 side which is the surface of the light guide plate 10, since only a small amount of light is emitted from the light guide plate 10, the light guide plate 10 has translucency and is guided. The outside of the light guide plate 10 on the second surface 12 side can be seen from the first surface 11 side which is the surface of the light plate 10.
  • the door lighting device 20 when both the first LED 4a and the second LED 4b are lit, as shown in FIG. 8C, the room A side on the first surface 11 side of the light guide plate 10 and the light guide plate 10 Both the room B side on the second surface 12 side are illuminated.
  • both surfaces of the first surface 11 and the second surface 12 of the light guide plate 10 are planar light emitters, the light-transmitting property is lost and the light-shielding property is obtained when the illumination module 1B is viewed from any outside. It will have.
  • the light guide plate 10 has translucency, so that the illumination module 1B and the door illumination device 20 have translucency.
  • the illumination module 1B and the door illuminating device 20 will have a light-shielding property from either one of the light guide plates 10, and from the other outside. Has translucency.
  • the lighting module 1B and the door lighting device 20 have a light shielding property to both outsides.
  • the first LED 4a and the second LED 4b can control the amount of light incident on the light guide plate 10 independently. Thereby, a difference can be provided in the brightness radiate
  • the illumination module 1B capable of adjusting the brightness of illumination can be provided.
  • the fact that the brightness of the illumination can be adjusted means that the light-transmitting property and the light-shielding property can be switched stepwise.
  • the second LED 4b since light is incident on the light guide plate 10 from two directions using the first LED 4a and the second LED 4b, the second LED 4b emits light in a region where the amount of light far from the first LED 4a is insufficient. Can be supplemented. For this reason, light can be sufficiently emitted from the entire region of the first surface 11 of the light guide plate 10, so that the light shielding property of the entire surface can be ensured. Furthermore, light is incident on the light guide plate 10 from two directions using the first LED 4a and the second LED 4b, rather than increasing the amount of power and making the light amount sufficient even in a region where the light amount in the distance is insufficient only by the first LED 4a. As a result, the amount of power is reduced.
  • the illumination module 1B and the door illumination device 20 that can adjust the brightness of illumination can be provided.
  • Embodiment 3 The following will describe another embodiment of the present invention with reference to FIGS.
  • the configurations other than those described in the present embodiment are the same as those in the first embodiment and the second embodiment.
  • members having the same functions as those shown in the drawings of Embodiment 1 and Embodiment 2 are given the same reference numerals, and explanation thereof is omitted.
  • the light emitting structure portion 13 is provided on both surfaces of the light guide plate 10 with concave portions having different inclination angles ⁇ of the two side walls.
  • the illumination module 1 ⁇ / b> C according to the present embodiment is different in that the light emitting structure 13 including different types of recesses is provided in two regions on one side of the light guide plate 10.
  • Fig.9 (a) is a front view which shows the structure of the illumination module 1C.
  • FIG. 9B is a front view and a cross-sectional view showing the configuration of the light emitting structure portion 13 formed of a recess disposed in the first region S1.
  • (C) of FIG. 9 is the front view and sectional drawing which show the structure of the light-projection structure part 13 which consists of a recessed part arrange
  • the light emitting structure 13 as the third light emitting structure is formed in the first region S ⁇ b> 1 on the back surface of the light guide plate 10. Yes.
  • a light emitting structure portion 13 as a fourth light emitting structure portion is formed in a second region S2 which is the same surface as the first region S1 and is different from the first region S1.
  • the light emitting structure 13 as the third light emitting structure formed in the first region S1 is a triangular section that extends long in the direction perpendicular to the first LED 4a, as shown in FIG. 9B. A plurality of recesses are provided.
  • the light emitting structure 13 as the fourth light emitting structure formed in the second region S2 has, as shown in FIG. 9C, a concave portion having a triangular section that extends long in the direction perpendicular to the second LED 4b. A plurality are provided.
  • the light emitting structure 13 that is the third light emitting structure and the light emitting structure 13 that is the fourth light emitting structure are at least one of the light from the first LED 4a and the light from the second LED 4b.
  • the light emission characteristics with respect to are different.
  • both the first region S1 and the second region S2 can be illuminated as shown in FIG.
  • the first LED 4a when the first LED 4a is turned on, the first region S1 can be illuminated as shown in FIG. 10B, and when the second LED 4b is turned on, as shown in FIG. 10C. Both of the second regions S2 can be illuminated.
  • the emission region of the light guide plate 10 can be controlled by the output control of the first LED 4a and the second LED 4b in two directions.
  • FIG. 11A is a cross-sectional view showing a state where the illumination module is turned off in the window illumination device.
  • FIG. 11B is a cross-sectional view showing a state where the illumination module is turned on in the window illumination device.
  • the window illumination device 30 is disposed on the ceiling 31 and includes any one of the illumination modules 1A, 1B, and 1C.
  • the first surface 11 of the light guide plate 10 of the illumination modules 1A, 1B, and 1C is located on the indoor side, and the second surface 12 is located on the outdoor side.
  • the window lighting device 30 functions as a skylight when turned off, and functions as room lighting when turned on. Light emitted from either the first LED 4a or the second LED 4b, or from both the first LED 4a and the second LED 4b is hardly emitted to the outdoor side, so that there is little loss even when the window illumination device 30 is used as room illumination.
  • the window illumination device 30 can be daylighted because it has translucency when turned off, but the amount of light reaching the interior can be controlled by the light emitting structure 13 depending on the direction of sunlight. For example, winter sunlight that is incident on the light guide plate 10 at a small angle has high transmittance of the light guide plate 10, and summer sunlight that is incident on the light guide plate 10 at a large angle is transmitted through the light guide plate 10.
  • the shape of the concave portion of the light emitting structure portion 13 may be defined so that the rate is low.
  • the shape of the concave portion of the light emitting structure 13 may be defined so that the transmitted light always has the same angle component even if the direction of sunlight changes. Thus, it is possible to irradiate a certain place with light collected regardless of the angle of sunlight, and conversely, sunlight can be collected while avoiding an area where light is not desired to be irradiated.
  • the protective glass 3 may have an infrared cut function or an ultraviolet cut function.
  • daylighting and power generation can be performed in the daytime, and the generated power in the daytime can be used as illumination. . Further, it is possible to contribute to low power consumption by collecting the lost light leaking to the outdoor side with a solar cell.
  • the window lighting device 30 of the present embodiment by pasting the window lighting device 30 of the present embodiment on all or part of mirrors installed in, for example, a wash basin and a bathroom, the function as a normal mirror is obstructed because it is transparent when turned off. None do.
  • the pasting portion when the lamp is turned on, the pasting portion functions as surface illumination, so that it is possible to provide a function as illumination capable of irradiating light from the closest position to a portion that is desired to be viewed with a mirror.
  • Illumination modules 1A, 1B, and 1C include a light guide member (light guide plate 10) having a light-transmitting property that guides light incident from a plurality of end surfaces and emits the light from a light exit surface, and A first light source (first LED 4a) that makes light incident on the first end surface 10a of the light guide member (light guide plate 10) and a second light source that makes light incident on the second end surface 10b of the light guide member (light guide plate 10).
  • Illumination modules 1A, 1B, and 1C having two light sources (second LEDs 4b), wherein the light guide member (light guide plate 10) guides light inside the light guide member (light guide plate 10).
  • the light output characteristics of the light from the second light source (second LED 4b) are different from each other, and the first light source (first LED 4a) and the second light source (second LED 4b) are light guides.
  • the amount of light incident on the inside of the member (light guide plate 10) can be controlled independently.
  • illumination module 1A * 1B * 1C uses the 1st light source (1st LED4a) and the 2nd light source (2nd LED4b) of the light guide member (light guide plate 10) which is two different directions. Light enters from the first end face 10a and the second end face 10b. And since the light emission structure part 13 is formed in the at least back surface (2nd surface 12) of the light guide member (light guide plate 10), the 1st light source (1st LED4a) and 2nd light source (2nd LED4b). Each light incident from the light guides the inside of the light guide member (light guide plate 10), a part of which is guided to the light output surface side by the light output structure 13, and is output to the outside from the light output surface.
  • the light emission structure part 13 consists of a recessed part, for example.
  • the light emitting structure 13 when the light emitting structure 13 is provided only on the back surface (second surface 12) of the light guide member (light guide plate 10), the inside of the light guide member (light guide plate 10) is guided. Most of the light to be emitted is emitted from the light exit surface, and only a small amount is emitted from the back surface (second surface 12) of the light guide member (light guide plate 10). For this reason, when the illumination modules 1A, 1B, and 1C are viewed from the outside of the light emitting surface side of the light guide member (light guide plate 10), the light guide member (light guide plate 10) becomes a planar light emitter. , The light-transmitting property is lost and the light-shielding property is obtained.
  • the illumination modules 1A, 1B, and 1C are viewed from the outside on the back surface (second surface 12) side of the light guide member (light guide plate 10), light is emitted from the light guide member (light guide plate 10). Since it is not transmitted, it has translucency, and the outside of the light output surface side of the light guide member (light guide plate 10) can be seen from the back surface (second surface 12) side of the light guide member (light guide plate 10). .
  • the light guide member (guide) is provided. Since light is emitted from both the front surface (first surface 11) and the back surface (second surface 12) of the light plate 10), the front surface (first surface 11) and the back surface (second surface) of the light guide member (light guide plate 10). Both sides of the surface 12) have light shielding properties.
  • the light emission structure 13 has different light emission characteristics between the light from the first light source (first LED 4a) and the light from the second light source (second LED 4b).
  • the light emission characteristic is, for example, a light emission angle with respect to a light emission surface or a light emission rate with respect to a light guide component. Thereby, a difference can be provided in the brightness radiate
  • the first light source (first LED 4a) and the second light source (second LED 4b) can independently control the amount of light incident on the light guide member (light guide plate 10). ing. Thereby, a difference can be provided in the brightness radiate
  • the illumination modules 1A, 1B, and 1C that can adjust the brightness of the illumination.
  • the fact that the brightness of the illumination can be adjusted means that the light-transmitting property and the light-shielding property can be switched stepwise.
  • the light guide member (light guide plate 10) is incident on the light guide member (light guide plate 10) from two directions using the first light source (first LED 4a) and the second light source (second LED 4b).
  • the amount of light can be supplemented by the second light source (second LED 4b).
  • the first light source (first LED 4a) and the second light source are more than the amount of power that is increased to increase the amount of power even in a region where the light amount in the distance is insufficient only by the first light source (first LED 4a).
  • the light emission characteristics can be easily controlled as compared with the system in which the light emission characteristics are controlled by moving a movable member such as a movable shutter.
  • the light emitting structure 13 includes light from the first light source (first LED 4a) and light from the second light source (second LED 4b). Then, it can be said that it has the light emission characteristic from which the light emission angle in the said light-projection surface differs.
  • the light emitting angle at the light emitting surface can be adopted as the light emitting characteristic of the light emitting structure 13.
  • the light emitting structure 13 includes light from the first light source (first LED 4a) and light from the second light source (second LED 4b). Then, it can be said that it has the light emission characteristic from which the ratio of the light quantity of the light radiate
  • the ratio of the amount of light emitted from the light exit surface to the amount of light guided through the inside of the optical member can be adopted as the light emission characteristic of the light emitting structure 13.
  • the inclination angle ⁇ and / or the projection area of the side wall of the recess formed on the back surface (second surface 12) of the light guide member (light guide plate 10) is made different in two directions. Accordingly, the ratio of the amount of light emitted from the light exit surface to the amount of light guided through the light guide member (light guide plate 10) can be varied. Alternatively, even if the inclination angle and / or projection area of the side wall of the recess is the same in two directions, the reflectance is made different so that the amount of light guided through the light guide member (light guide plate 10) can be reduced. The ratio of the amount of light emitted from the light exit surface can be varied.
  • the light emitting structure portion 13 includes a plurality of concave portions formed on the back surface (second surface 12) of the light guide member (light guide plate 10). Can be.
  • the light emission structure which consists of several recessed part formed in the back surface (2nd surface 12) of this light guide member (light guide plate 10) which is the other side to the light emission surface of a light guide member (light guide plate 10). Since the part 13 functions as a reflecting prism, the light can be emitted from the light emitting surface by reflecting the light toward the light emitting surface.
  • the inclination angle ⁇ and the projected area of the side wall of the concave portion are set in two directions: the direction of light from the first light source (first LED 4a) and the direction of light from the second light source (second LED 4b).
  • first LED 4a the direction of light from the first light source
  • second LED 4b the direction of light from the second light source
  • the light from the first light source (first LED 4a) and the second light source (second LED 4b) can be formed with a simple configuration in which a recess is formed on the back surface (second surface 12) of the light guide member (light guide plate 10).
  • the light emission structure portion 13 having a light emission characteristic different from that of the light from can be formed.
  • the side walls of the recesses in the light emitting structure 13 are inclined with respect to the back surface (second surface 12) of the light guide member (light guide plate 10).
  • the inclination angle ⁇ formed by the side wall of the recess in the light emitting structure 13 and the back surface (second surface 12) of the light guide member (light guide plate 10) is The side wall on the first light source (first LED 4a) side and the side wall on the second light source (second LED 4b) side are preferably different.
  • the inclination angle ⁇ of the side wall of the concave portion of the light emitting structure 13 is two directions, that is, the direction of light from the first light source (first LED 4a) and the direction of light from the second light source (second LED 4b). It is possible to make a difference in the light emission characteristics by being different.
  • the light emission direction can be made different from light in two directions due to the difference in the inclination angle ⁇ .
  • the light output rate from the light output surface can be made different.
  • the light emission angle and the light emission rate can be controlled simultaneously.
  • the side wall in the concave portion of the light emitting structure 13 includes the projected area on the first light source (first LED 4a) side and the second light source (second LED 4b). ) Side projected areas can be different from each other.
  • the projected area of the side wall of the concave portion of the light emitting structure 13 has two directions, that is, the direction of light from the first light source (first LED 4a) and the direction of light from the second light source (second LED 4b).
  • the difference can cause a difference in the light emission characteristics.
  • a first light exit surface that is the light exit surface is formed on the surface (first surface 11) of the light guide member (light guide plate 10), and the light guide is provided.
  • Light that guides the inside of the light guide member (light guide plate 10) while a second light output surface that is the light output surface is formed on the back surface (second surface 12) of the member (light guide plate 10).
  • the first light emitting structure 13 that is the light emitting structure 13 that guides a part of the light to the first light emitting surface and emits the light to the outside from the first light emitting surface is the second light emitting A portion of the light that is formed on the surface and guides the inside of the light guide member (light guide plate 10) is guided to the second light output surface side and is emitted to the outside from the second light output surface.
  • the second light emitting structure 13 which is the light emitting structure 13 to be formed is formed on the first light emitting surface, and the first light emitting structure 13
  • the structure unit 13 and the second light emitting structure unit 13 have light emission characteristics for at least one of light from the first light source (first LED 4a) and light from the second light source (second LED 4b). Can be different.
  • the light emitting structures 13 of different types are arranged on both the front surface (first surface 11) and the back surface (second surface 12) of the light guide member (light guide plate 10).
  • the amount of light emitted from the front surface (first surface 11) and back surface (second surface 12) of the light guide member (light guide plate 10) is set to the direction of the light from the first light source (first LED 4a) and the second.
  • Control can be performed by output control of the first light source (first LED 4a) and the second light source (second LED 4b) in two directions with respect to the direction of light from the light source (second LED 4b).
  • the illumination module 1B when used in a window illumination device that also functions as a window, for example, light emission from the front surface (first surface 11) and the rear surface (second surface 12) of the light guide member (light guide plate 10).
  • a window illumination device that also functions as a window
  • light emission from the front surface (first surface 11) and the rear surface (second surface 12) of the light guide member (light guide plate 10) By controlling the amount, visibility to the opposite side of the window, that is, so-called see-through property can be controlled.
  • the lighting module 1B is used as a door lighting device such as a bathroom where privacy is required, it can be used as door lighting that is not visible from the outside during bathing.
  • the third light emitting structure 13 that is the light emitting structure 13 in the first region on the back surface (second surface 12) of the light guide member (light guide plate 10).
  • a fourth light emitting structure portion 13 that is the light emitting structure portion 13 is formed in a second region that is the same surface as the first region and different from the first region.
  • the third light emitting structure portion 13 and the fourth light emitting structure portion 13 include the light from the first light source (first LED 4a) and the light from the second light source (second LED 4b). The light emission characteristics for at least one of them can be different.
  • different types of light emitting structures 13 are arranged in different regions on the same surface of the light guide member (light guide plate 10).
  • the output region of the light guide member (light guide plate 10) can be controlled by the output control of the first light source (first LED 4a) and the second light source (second LED 4b) in two directions.
  • the door illumination device 20 is characterized by including the illumination modules 1A, 1B, and 1C described above in order to solve the above-described problems.
  • the door illuminating device 20 provided with illumination module 1A * 1B * 1C which can adjust the brightness of illumination can be provided.
  • the lighting modules 1A, 1B, and 1C are used in the door lighting device 20 that also functions as a bath door, the front surface (first surface 11) and the back surface (second surface) of the light guide member (light guide plate 10).
  • the front surface (first surface 11) and the back surface (second surface) of the light guide member (light guide plate 10) By controlling the light emission amount of the surface 12), it is possible to provide the door lighting device 20 that can control the visibility on the opposite side of the door, that is, the so-called see-through property.
  • the window illumination device 30 is characterized by including the illumination modules 1A, 1B, and 1C described above in order to solve the above-described problems.
  • the window illuminating device 30 provided with illumination module 1A * 1B * 1C which can adjust the brightness of illumination can be provided.
  • the window illumination device 30 that also functions as a window, the front surface (first surface 11) and the back surface (second surface) of the light guide member (light guide plate 10).
  • the window illumination device 30 capable of controlling the visibility on the opposite side of the window, that is, the so-called see-through property.
  • the present invention includes a light guide member that guides light incident from a plurality of end faces and emits the light from the light exit face, a first light source that enters light to the first end face of the light guide member, and a light guide member
  • the present invention can be applied to an illumination module including a second light source that makes light incident on the second end face.
  • the lighting module is, for example, a door lighting device attached to a door, a window lighting device for a window including a skylight, or a housing building material such as a partition other than a door or a window, a wall surface or floor surface of a building, a cupboard or a kitchen It can be applied to furniture such as furniture, gate pillars, or public exteriors (fences, signs, bulletin boards, guide lights, handrails, etc.).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne notamment un module (1A) d'éclairage doté d'une plaque-guide (10) de lumière comportant une structure (13) émettrice de lumière, qui fait en sorte qu'une partie de la lumière guidée à travers l'intérieur de la plaque-guide de lumière soit émise vers l'extérieur à partir d'une première surface (11), au moins sur une deuxième surface (12) qui constitue la surface arrière de la plaque-guide (10) de lumière et qui fait face à la première surface (11). La structure (13) émettrice de lumière présente des caractéristiques d'émission de lumière différentes pour une lumière provenant d'une première DEL (4a) et une lumière provenant d'une deuxième DEL (4b). Les quantités de lumière incidentes sur la plaque-guide (10) de lumière en provenance de la première DEL (4a) et de la deuxième DEL (4b) peuvent être commandées indépendamment.
PCT/JP2013/081036 2012-11-28 2013-11-18 Module d'éclairage, dispositif d'éclairage de porte et dispositif d'éclairage de fenêtre Ceased WO2014084079A1 (fr)

Applications Claiming Priority (2)

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JP2012260132A JP2014107167A (ja) 2012-11-28 2012-11-28 照明モジュール、ドア照明装置及び窓照明装置
JP2012-260132 2012-11-28

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WO2014084079A1 true WO2014084079A1 (fr) 2014-06-05

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EP3165948A1 (fr) * 2015-11-05 2017-05-10 Samsung Electronics Co., Ltd. Plaque guide lumineux et ensemble de rétroéclairage l'incluant
EP3354815B1 (fr) * 2017-01-27 2021-03-17 Altura Leiden Holding B.V. Procédé concernant une plaque pourvue d'un éclairage

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FI129781B (en) 2020-10-26 2022-08-31 Teknologian Tutkimuskeskus Vtt Oy Device for checking visibility

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