JP2014038805A - Luminous equipment - Google Patents

Abstract

The present invention provides a light emitting device capable of producing an effect according to a situation in which it is used.
A light emitter 10 capable of dimming and toning light and a light-transmitting colored or colorless light that passes through at least part of the light output from the light emitter 10 and radiates outward. The transparent body 200, the power supply unit 20 for supplying power to the light emitter 10, the luminance control unit 31 that can control the luminance of the light output from the light emitter 10, and the chromaticity of the light output from the light emitter 10. And a controllable chromaticity control unit 32. The chromaticity control unit 32 moves the chromaticity coordinate value of the light within a predetermined range from the black body radiation locus curve in conjunction with the luminance of the light output from the light emitter 10 controlled by the luminance control unit 31. To control the color temperature of the light.
[Selection] Figure 1

Description

  The present invention relates to a light emitting device using a semiconductor light emitting element.

  There is a light-emitting device installed on a table such as a table. Some of such light emitting devices emit light that irradiates the upper surface of the table and irradiates the upper surface of the table (see, for example, Patent Document 1 and Patent Document 2).

JP 2004-87160 A JP 2004-105231 A

  The lighting device described in Patent Document 1 and the lighting device described in Patent Document 2 irradiate a range of a predetermined shape with light of a predetermined brightness and color and provide a certain effect. Configured to do. Therefore, the lighting device described in Patent Document 1 and the lighting device described in Patent Document 2 can be used only in a situation where such a certain effect can be performed based on the atmosphere of the place where it is used. There is a problem that the situation where the lighting device can be used is limited.

  In addition, although the color of the liquid for drinks is reflected in the color of the light which the lighting apparatus described in patent document 2 emits, the color of the light which the said lighting apparatus emits cannot be determined freely. There's a problem.

  The present invention has been made in view of these problems, and an object of the present invention is to provide a light-emitting device capable of producing an effect according to the situation in which it is used.

  In order to achieve the above object, a light-emitting device of the present invention includes a light-emitting body that can output light in a dimmable and color-adjustable manner, and at least a part of the light output from the light-emitting body that radiates outward. A transparent or colorless transparent body that transmits light, a power supply unit for supplying power to the light emitter, a luminance control unit that can control the luminance of light output from the light emitter, and the light emitter output A chromaticity control unit capable of controlling the chromaticity of the light to be emitted, wherein the chromaticity control unit is coupled with the luminance of the light output from the light emitter controlled by the luminance control unit. The color temperature of the light is controlled so that the chromaticity coordinate value of the light moves within a predetermined range from the black body radiation locus curve.

  It is preferable that the transparent body has a light scattering structure on at least a part of at least one of the surface and the inside.

  The transparent body radiates light output from the light emitter in a first direction and a second direction different from the first direction, and passes through the light emitted in the first direction. It is preferable to have one or a plurality of lens shapes for converging the light.

  The light emitter may be configured to include a combination of a plurality of organic EL elements capable of emitting different colors of light.

  The light emitter may be configured to include a combination of a plurality of light emitting diodes capable of emitting light of different colors, and the light emitter has a structure in which a light guide plate is combined with the light emitting diode. May be.

  The light emitter may be driven by a direct current power source.

  The power supply unit may include a connection unit with an external power source that supplies AC power, and a conversion unit that converts the AC power supplied from the external power source into DC power.

  It is preferable that the power feeding unit can be electrically connected to a storage battery for supplying power to the light emitter.

  The light emitting device includes a dial type, a slide switch type, a button type or a touch sensor type operation unit, and at least one of the luminance control unit and the chromaticity control unit corresponds to the operation performed on the operation unit. You may be comprised so that a light-emitting body may be controlled.

  It is preferable that the operation unit can remotely control at least one of the luminance adjustment unit and the chromaticity adjustment unit.

  According to the present invention, the luminance control unit can control the luminance of the light output from the light emitter, and the chromaticity control unit is linked to the control of the luminance control unit, and the chromaticity of the light output from the light emitter. Since the coordinate value can be controlled to move within a predetermined range from the black body radiation locus curve, the brightness and color temperature of the emitted light are controlled in conjunction with the situation of use. Thus, it is possible to perform lighting effects according to the situation in which it is used.

  In addition, since the transparent body has a light scattering structure on at least one of the surface and at least one of the inside, each light emitted from the light emitting unit and the combined light of each light are emitted in various directions outside the light emitting device. be able to.

  The transparent body emits light output from the light emitter in a first direction and a second direction different from the first direction, and converges the light to a portion through which light emitted in the first direction passes. For example, the light emitted from the light emitter and incident on the inner surface of the lens-shaped portion is converged in a direction to irradiate a predetermined range on the ceiling. Thus, the illumination can be performed using the ceiling.

It is a perspective view which shows one structural example of the light-emitting device of embodiment of this invention. It is a block diagram which shows the structural example of the light emission part of this Embodiment. It is a perspective view which shows the transparent body of a 1st modification. It is a perspective view which shows the transparent body of a 2nd modification. It is a perspective view which shows the transparent body of a 3rd modification. It is a perspective view which shows the transparent body of a 4th modification. It is explanatory drawing which shows the transparent body of a 5th modification. It is explanatory drawing which shows the transparent body of a 6th modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a configuration example of a light emitting device according to an embodiment of the present invention. As shown in FIG. 1, the light emitting apparatus of the present embodiment includes a light emitting component 100 that emits light and a hollow transparent body 200 through which light emitted from the light emitting component 100 passes.

  As shown in FIG. 1, the transparent body 200 is connected to one end of the cylindrical portion 500 having a cylindrical shape having openings at both ends, and covers one opening. And a lens shape part 400 formed in a dome-like convex lens shape. In addition, the cylindrical part 500 and the lens shape part 400 may be comprised as a different body, and may be comprised as integral.

  In the example shown in FIG. 1, the transparent body 200 is placed on the light emitting structure 100 so that the opening edge 200 a that is the other end of the tubular section 500 of the transparent body 200 is in contact with the upper surface 100 a of the light emitting structure 100. is set up. On the upper surface 100a of the light emitting component 100, a light emitter 10 having a light emitting surface on the upper surface is provided. In the example illustrated in FIG. 1, the transparent body 200 is configured such that the opening edge portion 200 a surrounds the periphery of the light emitter 10, and the light emitted from the light emitter 10 is incident on the inner surface of the transparent body 200. However, for example, on the upper surface 100a of the light emitting component 100, the area of the light emitter 10 is larger than the area surrounded by the opening edge 200a of the transparent body 200, or the opening edge of the transparent body 200 The light emitter 10 may protrude from the range surrounded by 200 a, and a part of the light emitted from the light emitter 10 may enter the transparent body 200. Moreover, in the example shown in FIG. 1, the light-emitting body 10 consists of light emission parts 10a-10d. The light emitting component 100 and the light emitter 10 will be described later.

  The transparent body 200 is made of a light-transmitting material, and transmits the light emitted from the light emitter 10 and incident on the inner surface, and radiates outward. Specific examples of the light-transmitting material include glass, acrylic, PET (Polyethylene terephthalate), and polycarbonate. In addition, from the viewpoint of weather resistance and light resistance, the transparent body 200 is preferably made of glass or acrylic.

  As described above, the lens shape portion 400 of the transparent body 200 shown in FIG. 1 has a dome shape so as to form a convex lens as an example of the shape. With such a configuration, the light emitted from the light emitter 10 and incident on the inner surface of the lens shape portion 400 is converged in a direction to irradiate a predetermined range and is emitted to the outside of the lens shape portion 400. Specifically, the light emitted from the light emitter 10 and incident on the inner surface of the lens-shaped portion 400 is emitted above the transparent body 200 (first direction).

  Further, in the hollow transparent body 200, at least a part of the light emitted upward from the light emitting body 10 installed on the upper surface 100a of the light emitting component 100 is radial direction of the cylindrical portion 500 in the transparent body 200. A scatterer 300 that reflects light is installed. Therefore, the light emitted from the light emitter 10 and reflected by the scatterer 300 in the radial direction of the cylindrical portion 500 of the transparent body 200 is radiated to the side (second direction) of the cylindrical portion 500 of the transparent body 200. The In the example illustrated in FIG. 1, for example, the scatterer 300 is suspended downward from the inner surface of the lens-shaped portion 400 in the hollow transparent body 200. The scatterer 300 may be suspended downward from the inner surface of the lens-shaped portion 400 in the hollow transparent body 200 so as to be rotatable around the vertical axis by driving a motor or the like. The hollow transparent body 200 may be filled with a light-transmitting filler, and the scatterer 300 may be held by the filler.

  Although FIG. 1 shows a plate-like body with stylized stars as an example of the scatterer 300, the scatterer 300 may have other shapes. Specifically, the scatterer 300 is, for example, a mirror ball, a star-shaped plate or a solid body, a plate or solid body resembling a flame, or a plate or solid body resembling a fruit. A plate-like body or a three-dimensional body resembling a flower, a plate-like body or a three-dimensional body resembling an animal, or a plate-like body or plate resembling a constellation may be used.

  Further, instead of providing the scatterer 300, or in addition to the scatterer 300, the lens-shaped portion 400 and the cylindrical portion 500 of the transparent body 200 are provided with pictures or fine frosted glass irregularities. It may be attached, and a pattern such as a letter or a picture may be given by fine unevenness on the polished glass.

  FIG. 2 is a block diagram illustrating a configuration example of the light emission configuration unit 100 of the present embodiment. As shown in FIG. 2, the light emitting configuration unit 100 of the present embodiment includes a light emitting body 10 that emits light, a power feeding unit 20 that supplies power to the light emitting body 10, a control unit 30 that controls the light emitting body 10, and a user. An operation unit 40 to be operated is included.

  First, the light emitter 10 will be described. The light emitter 10 emits light from the upper surface 100a of the light emitting component 100 from, for example, a square shape having a side of 14 cm or 7 cm, or a rectangular shape having a long side of 14 cm and a short side of 7 cm. In addition, the range of the light emitter 10 on the upper surface 100a of the light emitting component 100 is not limited to the above range, and may be a wider range or a narrow range. Further, the shape is not limited to a quadrangular shape such as a square or a rectangle, and may be a polygonal shape that is a pentagonal shape or more, a triangular shape, a circular shape, or the like.

  The light emitter 10 includes a plurality of light emitters 10a to 10d that are respectively controlled by the controller 30 (see FIG. 1). In the example shown in FIG. 1, the light emitter 10 is composed of a combination of four light emitters of the light emitting portions 10a to 10d. However, the light emitter 10 may be composed of a combination of five or more light emitters. It may be composed of a combination of three or less illuminants, or may be composed of one illuminant. In the example shown in FIG. 1, the light emitting units 10 a to 10 d are arranged side by side in a tile shape, but may be arranged in a stripe shape.

  The light emitting units 10a to 10d are preferably surface-emitting illumination members each composed of, for example, a combination of organic EL light-emitting elements or a combination of a light-emitting diode and a light guide plate. In addition, each of the light emitting units 10a to 10d may be configured.

  In addition, the case where each light emission part 10a-10d is each comprised by the surface emitting illumination member by the combination of an organic EL light emitting element is demonstrated. When each of the light emitting units 10a to 10d is configured by a surface emitting illumination member that is a combination of organic EL light emitting elements, each of the surface emitting illumination members that are the light emitting units 10a to 10d includes, for example, light emitting elements of three primary colors and emit light. The color is variable. Specifically, the surface emitting illumination member by the combination of organic EL light emitting elements includes, for example, a red light emitting element group composed of a plurality of organic EL light emitting elements that emit red light, and a plurality of organic EL light emitting elements that emit green light. And a blue light-emitting element group including a plurality of organic EL light-emitting elements that emit blue light. And the anode side terminals of the organic EL light emitting elements of the same color are electrically connected to each other, and the cathode side terminals of the organic EL light emitting elements of the same color are electrically connected to each other. A surface-emitting illumination member formed by a combination of organic EL light emitting elements emits light of each color when a voltage is applied between the anode side terminal and the cathode side terminal of the organic EL light emitting element of each color. Specifically, when a voltage is applied between the anode side terminal and the cathode side terminal of the organic EL light emitting element constituting the red light emitting element group, red light is emitted, and the organic EL light emitting element constituting the blue light emitting element group When a voltage is applied between the anode side terminal and the cathode side terminal, blue light is emitted, and a voltage is applied between the anode side terminal and the cathode side terminal of the organic EL light emitting element constituting the green light emitting element group. Emits green light. The surface emitting illumination member by the combination of the organic EL light emitting elements is controlled by a control unit 30 to be described later, and the voltage applied between the anode side terminal and the cathode side terminal of each organic EL light emitting element is controlled. Chromaticity is controlled.

  Moreover, the case where the light emission parts 10a-10d are each comprised by the surface emitting illumination member by the combination of a light emitting diode and a light-guide plate is demonstrated. When each of the light emitting units 10a to 10d is configured by a surface emitting illumination member that is a combination of a light emitting diode and a light guide plate, specifically, the surface emitting illumination members that are the light emitting units 10a to 10d are supplied, for example. A plurality of LED chips that emit purple or blue light according to current, a phosphor part that emits fluorescence converted from light emitted by the LED chip, and light emitted by the LED chip and phosphor part within a predetermined range And light guide plates that respectively constitute the light emitting surfaces of the light emitting units 10a to 10d. The phosphor portion emits fluorescence obtained by converting light emitted from the LED chip into, for example, red, green, or blue. And the electric current supplied to each LED chip which injects light into each fluorescent substance part which emits the fluorescence of each color is controlled by the control part 30 mentioned later, and the brightness | luminance and chromaticity of the emitted light are controlled. Then, the combined light of the light emitted from the LED chip and the light emitted from the phosphor portion is guided to the light emitting surfaces of the light emitting portions 10a to 10d by the light guide plate and is emitted upward in FIG.

  The power feeding unit 20 includes a connection unit 22 connected to a power supply that supplies power, a conversion unit 21 that changes the power supplied to the connection unit 22 to a format corresponding to the light emitter 10 and supplies the light emitter 10 with the conversion unit 21. including. The power source is, for example, a commercial power source, a high-voltage DC power, a storage battery such as a dry battery, or the like. The conversion unit 21 converts, for example, AC power supplied from the power source to the connection unit 22 into DC power having a voltage corresponding to the light emitter 10 and supplies it to the light emitter 10. In addition, the conversion unit 21 converts, for example, high-voltage DC power supplied from the power source to the connection unit 22 into low-voltage DC power corresponding to the light emitter 10 and supplies it to the light emitter 10. Alternatively, when the storage unit such as a dry battery is connected to the connection unit 22 and the light emitter 10 is driven by the power supplied by the storage battery, the conversion unit 21 converts the voltage into a voltage corresponding to the light emitter 10 and changes the light emitter. 10 is supplied.

  The operation unit 40 is operated by the user to change the light emitted from the light emitting unit 10. The operation unit 40 includes, for example, a dial type, a slide switch type, a button type, or a touch sensor type operation unit, and inputs operation information corresponding to an operation performed on the operation unit to the control unit 30. Note that the operation unit 40 may transmit operation information by infrared rays, radio waves, or the like. According to such a configuration, a user who operates the operation unit 40 can remotely operate the control unit 30.

  The control unit 30 includes a luminance control unit 31 and a chromaticity control unit 32, and controls light emission of the light emitter 10 based on operation information corresponding to an operation performed on the operation unit 40. The luminance control unit 31 independently controls the luminance of light emitted from the light emitting units 10a to 10d in the light emitter 10. The chromaticity control unit 32 independently controls the chromaticity of light emitted from the light emitting units 10a to 10d in the light emitter 10. The light emitting units 10a to 10d can emit light having different luminance and chromaticity according to the control of the luminance control unit 31 and the chromaticity control unit 32, respectively.

  The control of the light emitting units 10a to 10d by the luminance control unit 31 and the chromaticity control unit 32 will be described. The luminance control unit 31 and the chromaticity control unit 32 control the light emitting units 10a to 10d to emit light having different luminance and chromaticity. Then, in the light emitter 10, each region of the light emitting units 10a to 10d emits light having different luminance and chromaticity.

  Each part of the scatterer 300 reflects the light emitted by each region of the light emitting units 10 a to 10 d in the light emitter 10, for example, in the radial direction or upward of the cylindrical part 500 of the transparent body 200. Specifically, for example, in the scatterer 300, the first portion close to the light emitting unit 10a causes the light emitted from the light emitting unit 10a to fall within a predetermined range including the first radial direction of the cylindrical portion 500 of the transparent body 200. The second portion that is reflected and is close to the light emitting portion 10b in the scatterer 300 reflects the light emitted from the light emitting portion 10b to a predetermined range including the second radial direction of the cylindrical portion 500 of the transparent body 200, and scatters. In the body 300, the third portion close to the light emitting portion 10c reflects the light emitted from the light emitting portion 10c to a predetermined range including the third radial direction of the cylindrical portion 500 of the transparent body 200, and the scatterer 300 emits light. The fourth portion close to the portion 10d reflects the light emitted from the light emitting portion 10d to a predetermined range including the fourth radial direction of the tubular portion 500 of the transparent body 200.

  As described above, the scatterer 300 is in the form of a plate-like body in which the brightness of stars is designed, a mirror ball, or the like. Then, with such a configuration, the predetermined range including the first radial direction, the predetermined radial range including the second radial direction, and the third radial direction, which are the light reflection directions of the regions of the light emitting units 10a to 10d. And the predetermined range including the fourth radial direction at least partially overlap each other, and the light emitted from the light emitting units 10a to 10d is directed in various directions depending on each part of the scatterer 300. Reflected. Accordingly, the combined light of the light having different luminance and chromaticity emitted from the respective regions of the light emitting units 10a to 10d by the control of the light emitting units 10a to 10d by the luminance control unit 31 and the chromaticity control unit 32 is transmitted to the transparent body 200. It radiates | emits toward the radial direction outward (side of the cylindrical part 500 of the transparent body 200) from the cylindrical part 500. FIG.

  Therefore, light of various luminances and chromaticities reflected by each part of the scatterer 300 is irradiated radially outward from the cylindrical part 500 of the transparent body 200, and the scatterer 300 itself or the installation surface of the light emitting device Or decorative lighting effects can be realized on the surrounding wall surface.

  In addition, among the light emitted from the light emitting units 10 a to 10 d, the light reflected upward by the scatterer 300 and the remaining light not reflected by the scatterer 300 are the inner surfaces of the lens shape part 400 of the transparent body 200. Is converged in a direction to irradiate a predetermined range and is emitted to the outside of the lens shape portion 400. Accordingly, the combined light of the light emitted from the respective regions of the light emitting units 10a to 10d is emitted from the lens shape part 400 of the transparent body 200 outward and upward.

  Accordingly, light of various luminances and chromaticities is irradiated on the outer upper side of the transparent body 200, and decorative lighting is performed using the ceiling above the light emitting device in addition to the installation surface and the surrounding wall surface of the light emitting device. Production can be realized.

  Note that the luminance control unit 31 and the chromaticity control unit 32 set any one or more light emitting units, which are some of the light emitting units 10a to 10d, for a predetermined time, either randomly or by a certain algorithm. The light emitting units selected at intervals may be emitted so that at least one of luminance and chromaticity is different between the selected light emitting unit and the remaining light emitting unit. By such control, the brightness and chromaticity of the light emitted to the outside of the transparent body 200 can be changed at predetermined time intervals.

  Specifically, for example, the chromaticity control unit 32 selects a part of the light emitting units 10a to 10d and has a color slightly higher than 1900K (corresponding to the color temperature of the light emitted from the candle flame). Control to emit light with chromaticity at a temperature (for example, about 1950K), and control the remaining light emitting section to emit light with chromaticity at a color temperature slightly lower than 1900K (for example, about 1850K), By changing the light emitting unit to be selected randomly at a predetermined time interval or in a predetermined order as a certain algorithm (for example, the light emitting unit 10a → the light emitting unit 10b → the light emitting unit 10c → the light emitting unit 10d), the scatterer In 300, an illumination performance in which a portion irradiated with light of high chromaticity and a portion irradiated with light of low chromaticity changes at a predetermined time interval, and flickers a candle flame. It can be carried out. The luminance control unit 31 may perform control to change the luminance of light emitted from each light emitting unit in conjunction with the control of the chromaticity control unit 32. Moreover, you may control the brightness | luminance control part 31 so that the brightness | luminance of some light emission parts among the selected light emission parts 10a-10d may differ from the brightness | luminance of the remaining light emission parts. Further, the chromaticity control unit 32 may perform control to change the chromaticity of light emitted from each light emitting unit in conjunction with the control of the luminance control unit 31. Further, the light emission control of the light emitting units 10a to 10d performed by the luminance control unit 31 and the chromaticity control unit 32 is not limited to changing at a predetermined time interval, but is changed randomly or at intervals based on a fixed algorithm. May be.

  The luminance control unit 31 and the chromaticity control unit 32 have the luminance and chromaticity unified as a whole without making the luminance and chromaticity of the light emitted from the light emitting units 10a to 10d different from each other. The light emitting units 10a to 10d may be controlled so as to emit light. Even with such control, the luminance control unit 31 and the chromaticity control unit 32 can change the luminance and chromaticity of the light emitted from the entire illuminator 10 to perform various illumination effects.

  Further, the luminance control unit 31 and the chromaticity control unit 32 may change the luminance and chromaticity of light emitted from the light emitting units 10a to 10d in conjunction with each other. Specifically, for example, in conjunction with a change in luminance of light emitted from the light emitting units 10a to 10d of the light emitter 10 controlled by the luminance control unit 31, the chromaticity control unit 32 includes the light emitting units 10a to 10d. The chromaticity coordinate value of the emitted light is within a predetermined range from the black body radiation locus curve (specifically, for example, in the XY chromaticity diagram of the CIE (1931) XYZ color system, the black body radiation of the chromaticity coordinate of the light) The chromaticity is controlled so that the deviation duv from the locus curve moves within a range of −0.02 or more and 0.02 or less.

  Specifically, in the case where the light emitting units 10a to 10d are each composed of a surface emitting illumination member formed by a combination of organic EL light emitting elements, the luminance control unit 31 is an anode of the organic EL light emitting elements constituting the red light emitting element group. A current value flowing between the side terminal and the cathode side terminal, a current value flowing between the anode side terminal and the cathode side terminal of the organic EL light emitting element constituting the green light emitting element group, and a blue light emitting element group When changing the luminance value of the synthesized light emitted from the light emitting units 10a to 10d by changing the value of the current flowing between the anode side terminal and the cathode side terminal of the organic EL light emitting element, the light emitting element group of each color was emitted. The chromaticity control unit 32 controls the ratio of each current value so that the chromaticity coordinate value of the combined light of the light falls within a predetermined range from the black body radiation locus curve.

  More specifically, when the value of the current flowing between the anode side terminal and the cathode side terminal of the organic EL light emitting element constituting the red light emitting element group increases, the red component of the combined light increases, and the green light emitting element group If the value of the current flowing between the anode side terminal and the cathode side terminal of the organic EL light emitting element to be configured increases, the green component of the synthesized light increases, and the anode side terminal of the organic EL light emitting element constituting the blue light emitting element group As the value of the current flowing between the cathode side terminal increases, the blue component of the combined light increases. Therefore, the chromaticity of the combined light of the light emitted from the light emitting element groups of the respective colors can be controlled by the ratio of the respective current values. Therefore, the chromaticity control unit 32 controls the ratio of each current value so that the chromaticity coordinate value of the combined light of the light emitted from the light emitting element groups of each color falls within a predetermined range from the black body radiation locus curve. It is.

  In addition, when the light emitting units 10a to 10d are each configured by a surface emitting illumination member that is a combination of a light emitting diode and a light guide plate, the luminance control unit 31 flows to the LED chip corresponding to the light emitting member that emits red light. The current value, the current value flowing through the LED chip corresponding to the light emitting member that emits green light, and the current value flowing through the LED chip corresponding to the light emitting member that emits blue light are changed to emit light from the light emitting units 10a to 10d. The chromaticity control unit 32 causes the chromaticity coordinate value of the combined light of the light emitted from the light emitting element groups of the respective colors to fall within a predetermined range from the black body radiation locus curve when the luminance of the combined light to be generated is changed. The ratio of the current value flowing through each LED chip is controlled.

  More specifically, if the current value flowing through the LED chip corresponding to the light emitting member that emits red light increases, the red component of the combined light increases, and the current flowing through the LED chip corresponding to the light emitting member that emits green light. As the value increases, the green component of the combined light increases, and as the current value flowing through the LED chip corresponding to the light emitting member that emits blue light increases, the blue component of the combined light increases. Accordingly, the chromaticity of the combined light of the light emitted from the light emitting element groups of the respective colors can be controlled by the ratio of the current values flowing through the LED chips. Therefore, the chromaticity control unit 32 determines the current value flowing through each LED chip so that the chromaticity coordinate value of the combined light of the light emitted from the light emitting element groups of each color is within a predetermined range from the black body radiation locus curve. Control the ratio.

  Here, instead of changing the current value flowing through the light emitting element or light emitting member of each color, the chromaticity coordinate value of the combined light is controlled within a predetermined range from the black body radiation locus curve by controlling the time for which a constant current value is passed. You may control so that it may become inside.

  By such control, it is possible to output light that emits white light or light emitted from an incandescent bulb so that the luminance can be changed from the light emitter 10. Also, the light is not limited to white light, and chromaticity light that reflects sunlight or the like may be output so that the luminance can be changed. Note that the luminance may be changed according to a change in chromaticity.

  In addition, as shown in FIG. 1, the transparent body 200 installed on the upper surface 100a of the light emitting component 100 may be exchangeable with a transparent body of another form. Then, next, the modification of the transparent body 200 in the light-emitting device of embodiment of this invention is demonstrated. The transparent body of each modification described below can be installed on the upper surface 100a of the light emitting component 100, similarly to the transparent body 200 shown in FIG.

<Modification 1>
FIG. 3 is a perspective view showing a transparent body 200a of a first modification. The transparent body 200 illustrated in FIG. 1 is formed in a cylindrical portion 500 formed in a cylindrical shape and a dome-like convex lens shape that is connected to one end of the cylindrical portion 500 and covers one opening. The transparent body 200a of the present modification is connected to the cylindrical portion 500a formed in a hollow quadrangular prism shape and one end of the cylindrical portion 500a. And a lid-shaped lens-shaped portion 400a which is formed in a hollow quadrangular pyramid shape having an open bottom surface. In addition, the cylindrical part 500a and the lens shape part 400a may be comprised as a different body, and may be comprised as integral.

  When such a transparent body 200a is adopted, the transparent body 200 shown in FIG. The illumination effect different from the case where the transparent body 200 and the transparent body of the other modified example described later are installed can be performed.

<Modification 2>
FIG. 4 is a perspective view showing a transparent body 200b of a second modified example. The transparent body 200 illustrated in FIG. 1 includes the cylindrical portion 500 and the lens shape portion 400, but the transparent body 200b of this modification example is a hollow hemispherical shape that includes only a portion corresponding to the lens shape portion 400. Is formed.

  When such a transparent body 200b is employed, light is irradiated in a different range from the case where the transparent body 200 shown in FIG. 1 and the transparent body of another modification are installed on the upper surface 100a of the light emitting component 100. And the illumination effect different from the case where the transparent body 200 and the transparent body of another modification are installed can be performed. In addition, a small light emitting device having a low height can be realized.

<Modification 3>
FIG. 5 is a perspective view showing a transparent body 200c of a third modification. The transparent body 200c of this modification includes a cylindrical portion 500c corresponding to the cylindrical portion 500 and a lens shape portion 400c corresponding to the lens shape portion 400 in the transparent body 200 illustrated in FIG. A tip portion 401c formed in the shape of a hollow hexagonal column whose bottom surface is opened according to the opening provided at the top of the lens-shaped portion 400c is provided. The cylindrical portion 500c and the lens shape portion 400c, and the lens shape portion 400c and the tip portion 401c may be configured as separate bodies or may be configured as a single body.

  When such a transparent body 200c is employed, the transparent body 200 shown in FIG. 1 and the transparent body of another modification are irradiated with light in a different range from the case where the transparent body 200c is installed on the upper surface 100a of the light emitting component 100. And the illumination effect different from the case where the transparent body 200 and the transparent body of another modification are installed can be performed. Note that the shape of the tip 401c provided at the top of the dome-shaped lens-shaped portion 400c is not limited to a hollow hexagonal shape, and may be another hollow polygonal shape, a cylindrical shape, or the like. That is, in this modification, the lens-shaped portion 400c is a combination of a portion formed in a dome-shaped convex lens shape and a tip portion 401c formed in a hollow hexagonal column shape, but other lens shapes ( For example, one portion formed in a concave lens shape and a remaining portion formed in another shape different from the shape in the one portion may be formed in combination.

<Modification 4>
FIG. 6 is a perspective view showing a transparent body 200d of a fourth modified example. The transparent body 200d of this modification includes a cylindrical portion 500c corresponding to the cylindrical portion 500 and a lens shape portion 400d corresponding to the lens shape portion 400 in the transparent body 200 illustrated in FIG. The lens-shaped portion 400 in the transparent body 200 illustrated in FIG. 1 is formed in a dome-shaped convex lens shape that covers the opening of the cylindrical portion 500, but the lens-shaped portion 400 d of this modification is the cylindrical portion 500. A microlens array composed of a plurality of convex lenses is formed on the upper surface of the plate-like body that covers the opening.

  When such a transparent body 200b is employed, light is irradiated in a different range from the case where the transparent body 200 shown in FIG. 1 and the transparent body of another modification are installed on the upper surface 100a of the light emitting component 100. And the illumination effect different from the case where the transparent body 200 and the transparent body of another modification are installed can be performed. In addition, a small light emitting device having a low height can be realized. In the example shown in FIG. 6, a microlens array made up of a plurality of convex lenses is formed on the upper surface of a plate-like body that covers the opening of the cylindrical part 500, but a microlens array made up of a plurality of concave lenses is formed. Alternatively, a microlens array formed by a combination of a plurality of convex lenses and a plurality of concave lenses may be formed.

<Modification 5>
FIG. 7A is a top view showing a transparent body 200e of a fifth modified example. FIG.7 (b) is sectional drawing which follows the VII-VII line shown to Fig.7 (a). The transparent body 200 illustrated in FIG. 1 is formed in a cylindrical portion 500 formed in a cylindrical shape and a dome-like convex lens shape that is connected to one end of the cylindrical portion 500 and covers an opening. The transparent body 200e of the present modification is connected to the cylindrical portion 500e corresponding to the cylindrical portion 500 and one end of the cylindrical portion 500e, and the opening portion is included. And a lens shape portion 400e formed in a dome-shaped concave lens shape.

  When such a transparent body 200e is employed, light is irradiated in a different range from the case where the transparent body 200 shown in FIG. 1 and the transparent body of another modification are installed on the upper surface 100a of the light emitting component 100. And the illumination effect different from the case where the transparent body 200 and the transparent body of another modification are installed can be performed. In addition, a small light emitting device having a low height can be realized.

<Modification 6>
Each transparent body illustrated in FIGS. 1 and 3 to 7 has been described as being hollow, but as described above, each hollow transparent body may be filled with a light-transmitting filler. FIG. 8 is a perspective view showing a transparent body 200f of a sixth modification which is a transparent body having such a configuration. In the example shown in FIG. 8, the transparent body 200f includes a lens shape portion 400f and a cylindrical portion 500f having the same shape as the lens shape portion 400 and the cylindrical portion 500 in the transparent body 200 illustrated in FIG. The transparent body 200f is filled with a light-transmitting filler 600. The scatterer 300 is supported by the filler 600. In addition, the filler 600 may be colorless and transparent or may be colored and transparent as long as it has a light-transmitting property, like each of the transparent bodies described above.

  According to this modification, a light scattering agent or the like can be mixed with the filler 600 to scatter the outward radiation direction of the light emitted from the light emitter 10. Moreover, the color of light emitted from the light emitter 10 can be changed by mixing the filler 600 uniformly or non-uniformly to make it colored and transparent.

  In this example, the filler 600 is contained in the transparent body 200f including the lens shape part 400f and the cylindrical part 500f having the same shape as the lens shape part 400 and the cylindrical part 500 in the transparent body 200 illustrated in FIG. Although it is filled, the same effect can be obtained even when the filler 600 is filled in the transparent bodies 200a to 200e of other examples.

  Each transparent body illustrated in FIGS. 1 and 3 to 7 has been described as being hollow, and the sixth modification has been described with respect to the case where the interior is filled with the filler 600. However, each transparent body illustrated in FIG. 1 and FIGS. 3 to 7 may be formed of a solid material from the outer edge to the center.

  The shape of the transparent body 200 is not limited to the shape in each example described above, and may be various other shapes. For example, the cylindrical portion 500 is configured by a combination of a plurality of different shapes. Specifically, in the cylindrical portion 500, the upper portion is a rectangular parallelepiped shape having a cylindrical shape on the upper side and a hollow on the lower side. The shape may be different on the side, or a shape such as a crystal cut may be used. Moreover, the shape of each example described above may be combined. Specifically, for example, the first modified example and the fourth modified example may be combined to form a microlens array in the lens shape portion 400a of the first modified example, A microlens array may be formed in the cylindrical portion 500 of the example. In each modification, the scatterer 300 may be installed or may not be installed.

  According to the present embodiment, since the control unit 30 can control the luminance and chromaticity of the light emitted from the light emitter 10, it controls the luminance and chromaticity of the light emitted according to the situation used, Illumination effects can be performed according to the situation in use.

  Further, the control unit 30 is configured such that the luminance and chromaticity of light emitted by some of the light emitting units among the light emitting units 10a to 10d constituting the light emitter 10 are different from the luminance and chromaticity of light emitted by the remaining light emitting units. Therefore, it is possible to perform various lighting effects depending on the situation of use.

  Moreover, since the scatterer 300 is installed in the transparent body 200, the scatterer 300 reflects each light emitted from the light emitting units 10a to 10d constituting the light emitter 10 and the combined light of each light in various directions. , Can radiate out of the light emitting device.

  When the transparent body 200 includes the lens shape portion 400 and the lens shape portion 400 forms a convex lens, the light emitted from the light emitter 10 and incident on the inner surface of the lens shape portion 400 is determined in advance on the ceiling, for example. It is possible to perform illumination effects using the ceiling by converging in the direction of irradiating the range and radiating outward of the lens shape portion 400.

  Further, in the case where the lens shape portion 400e forms a concave lens as in the fifth modification, the light emitted from the light emitter 10 and incident on the inner surface of the lens shape portion 400 is transmitted as in the lens shape portion 400. Compared to the case where a convex lens is formed, the ceiling can be used to diffuse lighting in a direction to irradiate a wide range and radiate outward of the lens shape portion 400 to perform an illumination effect using the ceiling.

  Since the storage device such as a dry battery can be connected to the connecting portion 22 in the light emitting device according to the present invention, even if it is difficult to supply power from a commercial power source, a lighting effect is produced using the storage battery such as a dry battery. It can be carried out.

DESCRIPTION OF SYMBOLS 10 Light emitter 10a, 10b, 10c, 10d Light emission part 20 Power supply part 21 Conversion unit 22 Connection part 30 Control part 31 Luminance control part 32 Chromaticity control part 40 Operation part 100 Light emission part 200 Transparent part 300 Scatter part 400 Lens shape part 500 Cylindrical part 600 Filler

Claims (11)

A light emitter capable of dimming and toning light; and
A light-transmitting colored or colorless transparent body that transmits at least a part of the light output from the light emitter and radiates outward; and
A power feeding unit for supplying power to the light emitter;
A luminance control unit capable of controlling the luminance of light output from the light emitter;
A chromaticity control unit capable of controlling the chromaticity of light output from the light emitter,
The chromaticity control unit moves the chromaticity coordinate value of the light within a predetermined range from the black body radiation locus curve in conjunction with the luminance of the light output from the light emitter controlled by the luminance control unit. A light emitting device characterized by controlling the color temperature of the light. The light-emitting device according to claim 1, wherein the transparent body has a light scattering structure on at least a part of at least one of the surface and the inside. The transparent body radiates light output from the light emitter in a first direction and a second direction different from the first direction, and passes through the light emitted in the first direction. The light-emitting device according to claim 1, wherein the light-emitting device has one or more lens shapes for converging the light. The light emitting device according to any one of claims 1 to 3, wherein the light emitter is composed of a combination of a plurality of organic EL elements capable of emitting different colors. The light emitting device according to any one of claims 1 to 3, wherein the light emitter is composed of a combination of a plurality of light emitting diodes capable of emitting different colors. The light emitting device according to claim 5, wherein the light emitter has a structure in which a light guide plate is combined with the light emitting diode. The light emitting device according to any one of claims 1 to 6, wherein the light emitter is driven by a DC power source. The power supply unit includes a connection unit with an external power source that supplies AC power, and a conversion unit that converts the AC power supplied from the external power source into DC power. The light-emitting device according to claim 7. The light emitting device according to any one of claims 1 to 8, wherein the power feeding unit is electrically connectable to a storage battery. It has a dial type, slide switch type, button type or touch sensor type operation unit,
10. The device according to claim 1, wherein at least one of the luminance control unit and the chromaticity control unit controls the light emitter in accordance with an operation performed on the operation unit. 11. The light emitting apparatus as described. The light emitting apparatus according to claim 10, wherein the operation unit can remotely control at least one of the luminance adjustment unit and the chromaticity adjustment unit.