JP2010272217A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture with high light-emitting efficiency and also capable of dimming a lamp in a broad range without going-out or flickering under low temperature and low dimming operation. <P>SOLUTION: The lighting fixture 1 at least includes a lighting fixture body 2, a fluorescent lamp 3 as a first light source means to be mounted on the lighting fixture body 2, and a reflecting member 6 to reflect light from the first light source means. The reflecting member 6 is composed of an organic EL panel 7 as a second light source means, and includes a lighting circuit 4 to turn on the first light source means and the second light source means. The second light source means can dim the light when the first light source means is turned off. Alternatively, the reflecting means 6 can be equipped with the organic EL panel 7 at a part of it as the second light source means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a luminaire including a plurality of light sources.

  2. Description of the Related Art There are many lighting fixtures that are used by attaching a light source such as a fluorescent lamp to a socket portion of a lighting fixture body having a lighting circuit. In such a luminaire, light from a light source is reflected by a reflecting plate coated with white having a high reflectance, thereby increasing light emission efficiency. In addition, as energy consumption continues to increase, energy saving in lighting fixtures is an important issue. Therefore, as one approach to energy saving of the luminaire, a technique of dimming the lamp of the luminaire according to the place and situation is used. In such a luminaire, a lighting circuit is designed so that the lamp can be dimmed step by step.

  On the other hand, in a backlight of a liquid crystal display device, a technique in which a main light source and an auxiliary light source such as a light emitting diode or an organic EL element are combined is used in order to obtain a more easily viewable image. For example, Patent Document 1 discloses a liquid crystal display element and a direct type in which a main light source is disposed directly below the liquid crystal display element, and a light reflecting plate that reflects light from the main light source is provided on the back surface of the main light source. A liquid crystal display device including an illumination device and provided with auxiliary light source means immediately below the main light source has been introduced. As a result, a uniform screen display with less luminance unevenness is possible.

  Further, in Patent Document 2, a fluorescent tube that is a main light source of an illumination panel is turned on by an illumination control device, the brightness around the liquid crystal display device is detected by an optical sensor, and the illumination control device is input from the optical sensor. A technique has been introduced in which an organic EL element, which is an auxiliary light source of an illumination panel, emits light with a luminance corresponding to the brightness of the periphery of a liquid crystal display device based on a detection signal. For example, when the periphery of the liquid crystal display device is bright, the drive current of the organic EL element is increased to increase the light emission luminance, thereby improving the luminance of the entire illumination panel.

JP 2000-310776 A JP 2006-003797 A

  However, in the method of changing the lighting circuit of the lighting fixture as described above and making the lamp dimmable, the lighting circuit needs to be complicated. When the lamp can be dimmed in this way, there is a problem that if the dimming is performed at a low temperature, the lamp is turned off or flickers. Therefore, it is necessary to consider a method of using a plurality of light sources and making the lamp dimmable.

  As described in Patent Document 1 or 2, a method of using an auxiliary light source such as a light emitting diode or an organic EL element in addition to a main light source has been proposed in a backlight of a liquid crystal display device. However, these auxiliary light sources are used to obtain uniform luminance as a backlight of a liquid crystal display device, and are premised on the lighting of the main light source. Therefore, the auxiliary light source cannot be applied as it is as a dimming means for a lamp of a lighting fixture. Furthermore, when a light source other than the main light source is installed as it is on a lighting fixture having a reflector as described above, it is assumed that the light emission efficiency is lowered. Moreover, when installing a light source in the position which avoids this, the design of a lighting fixture is restrict | limited.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting apparatus that has high light emission efficiency and can dim a lamp over a wide range without causing extinction or flickering at low temperature and low dimming. .

The luminaire according to the present invention includes at least a luminaire main body, first light source means including a fluorescent tube attached to the luminaire main body, and a reflecting member that reflects light from the first light source means. ,
The reflecting member has second light source means;
A lighting circuit for lighting the first light source means and the second light source means;
The second light source means can be dimmed with the first light source means turned off.

  According to the lighting fixture of the present invention, the light emission efficiency is high, and the lamp can be dimmed over a wide range without causing the light to turn off or flicker at low temperature and low light control.

It is a perspective view which shows the structural example of the lighting fixture which concerns on Embodiment 1 of this invention. FIG. 3 is a cross-sectional view illustrating a configuration example of a lighting fixture according to Embodiment 1. FIG. 3 is an enlarged view of a portion A in FIG. 2. It is a perspective view which shows the structural example of the lighting fixture which concerns on Embodiment 2 of this invention. FIG. 6 is a cross-sectional view illustrating a configuration example of a lighting fixture according to Embodiment 2. FIG. 6 is an enlarged view of a portion B in FIG. 5. It is a perspective view which shows the structural example of the lighting fixture which concerns on Embodiment 3 of this invention. FIG. 10 is a cross-sectional view illustrating a configuration example of a lighting fixture according to Embodiment 3.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 shows a perspective view of a lighting fixture according to Embodiment 1 of the present invention. The luminaire 1 includes a luminaire body 2, a fluorescent lamp 3, and a reflecting member 6. The luminaire main body 2 is fixed to a ceiling, a wall, or the like, and may be either an attachment type or an embedded type. The luminaire main body 2 has a socket portion 5, and a fluorescent lamp 3 is attached to the socket portion 5. The reflecting member 6 is fixed to the lighting fixture body 2 and reflects light from the fluorescent lamp 3. As will be described in detail later, in the first embodiment, the reflecting member 6 is an organic electroluminescence panel (hereinafter referred to as an organic EL panel) 7, and the lighting fixture body 2 includes the organic EL panel 7 and the fluorescent lamp 3 described above. The lighting circuit 4 for lighting up is incorporated. In addition, in order to electrically connect the lighting circuit 4 and the organic EL panel 7 or the fluorescent lamp 3, wirings (not shown) are appropriately provided.

  The fluorescent lamp 3 is a straight tube fluorescent lamp, and two sockets 5 are mounted in parallel to each other. FIG. 2 is a cross-sectional view of the lighting apparatus according to Embodiment 1. For example, as shown in FIGS. 1 and 2, the reflecting member 6 has a shape in which both ends of a rectangular plate are bent in a dogleg shape. In FIG. 1 and FIG. 2, the reflecting member 6 is shown fixed to the luminaire main body 2 on one plane of the reflecting member 6, but these fixing methods are not limited to this method.

  FIG. 3 shows an enlarged view of portion A of FIG. As described above, in the first embodiment, the reflecting member 6 is the organic EL panel 7. As shown in FIG. 3, the organic EL panel 7 includes a panel substrate 7a, a cathode 7b, a light emitting layer 7c, an anode 7d, and a sealing film 7e. In addition to the organic EL panel 7 composed of these layers, the reflecting member 6 may include a transparent or translucent protective member for protecting the panel surface, a holding member for the lighting fixture body 2, and the like.

  The cathode 7b is made of a material having a high light reflectance and a function as an electrode. For example, it consists of metals, such as Al, Cr, Mo, Al alloy, and an Al / Mo laminated body. The light emitting layer 7c contains at least a known organic light emitting material such as Alq3 or DCM. Moreover, between the cathode 7b and the anode 7d, you may provide suitably one or several layers employ | adopted for well-known organic EL devices, such as an electron carrying layer and a hole transport layer. The anode 7d has a function as an electrode and may be transparent or translucent to at least visible light, and is made of a material such as ITO. The sealing film 7e only needs to be transparent or translucent to at least visible light. For example, silicon nitride, silicon oxynitride, silicon oxide, or the like is used. Each layer is formed by a known thin film forming method such as a vacuum evaporation method.

  When electric power is supplied from the outside to the lighting circuit 4 of the lighting fixture body 2, the fluorescent lamp 3 is turned on and light is emitted. It is desirable to design the lighting circuit 4 in advance so that the fluorescent lamp 3 can be dimmed in the range of 100% to several tens of% of the maximum light emission. The light emitted from the fluorescent lamp 3 is emitted at 360 degrees, but the light emitted to the upper surface or the side surface of the fluorescent lamp 3 is reflected by the cathode 7b of the organic EL panel 7 as shown by X in FIG. Is done. That is, since the organic EL panel 7 plays a role as a reflector, light can be efficiently emitted.

  The lighting circuit 4 also includes a circuit for lighting the organic EL panel 7. When electric power is supplied to the organic EL panel 7 from the outside, the light emitting layer 7c emits light. The light emitted from the light emitting layer 7c is directly emitted to the anode 7d and the sealing film 7e side or reflected by the cathode 7b. The lighting circuit 4 is designed in advance so that the current supplied to the organic EL panel 7 can be changed and the light emitted from the organic EL panel 7 can be dimmed.

  When using the lighting fixture 1 according to the first embodiment, the fluorescent lamp 3 is turned on at 100% in a place or situation where brightness is required, and the light of the fluorescent lamp 3 is emitted using the cathode 7b of the organic EL panel 7. Reflect. Furthermore, when brightness is required, the organic EL panel 7 may be turned on. Further, the fluorescent lamp 3 is dimmed in a place or situation that does not require brightness. When further dimming is required, the fluorescent lamp 3 is turned off and the organic EL panel 7 is turned on. The organic EL panel 7 can also be dimmed. That is, the organic EL panel 7 can emit light with a light amount smaller than the minimum light emission of the fluorescent lamp 3 and can be dimmed within that range. In this way, by allowing the fluorescent lamp 3 and the organic EL panel 7 to be dimmable, the lighting fixture 1 can achieve a dimming of substantially 0 to 100%.

  Thus, according to the luminaire 1 according to the first embodiment, the lamp can be dimmed over a wide range without causing a turn-off or flickering at low temperature and low dimming. This is because the fluorescent lamp 3 and the organic EL panel 7 are used as other light source means, and the illuminance of the luminaire 1 can be adjusted in a wide range including the range of light intensity smaller than the minimum light emission of the fluorescent lamp 3. is there. That is, in the lighting fixture 1 according to the first embodiment, the fluorescent lamp 3 does not need to be dimmed excessively, so that it does not disappear or flicker during low temperature dimming. As a result, improvement in space comfort and energy saving can be achieved.

  Further, by using two light source means, it is possible to ensure the illuminance at hand by causing the organic EL panel 7 to emit light when the lamp is replaced when the fluorescent lamp 3 is at the end of its life. Be improved. Moreover, in this Embodiment 1, since the cathode 7b of the organic EL panel 7 is utilized as it is as a reflecting plate, the light radiation efficiency is high. Furthermore, in a lighting fixture having a reflector, the design is not limited by installing two light source means.

  The shapes of the organic EL panel 7 that is the reflecting member 6 according to the first embodiment and the lighting fixture body 2 that fixes the organic EL panel 7 are examples, and are not limited to the shapes shown in the drawing. The shape of the luminaire body 2 can be appropriately changed in accordance with the shape of the fluorescent lamp 3 to be mounted, and the shape of the organic EL panel 7 can efficiently reflect the light of the mounted fluorescent lamp 3. Any shape is acceptable.

  Further, the method for fixing the organic EL panel 7 and the lighting fixture body 2 is also an example in accordance with the shapes of the organic EL panel 7 and the lighting fixture body 2 and is not limited to the method shown in the figure. For example, a framework for holding the organic EL panel 7 may be formed on the luminaire main body 2, or the organic EL panel 7 may be fixed so as to fit into the opening of the luminaire main body 2 having an opening. The lighting circuit 4 may not be built in the lighting fixture body 2. For example, a configuration may be employed in which the lighting fixture main body 2 is installed separately and wired.

(Embodiment 2)
In the second embodiment, the case where an organic EL panel 7 and a reflecting plate 8 made of a material that reflects light are used as the reflecting member 6 will be described.

  FIG. 4 shows a perspective view of a lighting fixture according to Embodiment 2 of the present invention. The structural example of the lighting fixture 1 is the same as the lighting fixture 1 shown in Embodiment 1, except for the configuration of the reflecting member 6. The luminaire 1 includes a luminaire body 2, a fluorescent lamp 3, and a reflecting member 6. The luminaire main body 2 having the socket part 5 and the lighting circuit 4 built therein, and the fluorescent lamp 3 attached to the socket part 5 are the same as in the first embodiment. The lighting fixture 1 of this Embodiment 2 differs in the point by which the reflection member 6 is comprised from the organic EL panel 7 and the reflecting plate 8 compared with Embodiment 1. FIG. In addition, in order to electrically connect the lighting circuit 4 and the organic EL panel 7 or the fluorescent lamp 3 respectively, wiring (not shown) is appropriately provided.

  FIG. 5 is a cross-sectional view of the lighting fixture according to the second embodiment. The reflection member 6 includes a reflection plate 8 having a shape in which both ends of a rectangular plate are bent in a U-shape, and four rectangular organic EL panels 7. Each of the organic EL panels 7 is mounted on the surface of the reflector 8 on the fluorescent lamp 3 side. Although FIG. 5 shows a state in which the reflecting member 6 is fixed to the luminaire main body 2 in one plane of the reflecting plate 8, the present invention is not limited to this fixing method.

  6 shows an enlarged view of a portion B in FIG. The configuration of the organic EL panel 7 is the same as that in the first embodiment. In addition, you may provide the protective member which is transparent or semi-transparent for protecting the surface of the organic EL panel 7, the holding member to the reflecting plate 8, etc. The reflection plate 8 may be any material that reflects light, and for example, a sheet metal coated with white having a high reflectance is desirable. The light emitted from the fluorescent lamp 3 toward the organic EL panel 7 is reflected by the cathode 7b as indicated by Y in FIG. Further, the light emitted from the fluorescent lamp 3 toward the reflecting plate 8 is reflected by the reflecting plate 8 as indicated by Z in FIG.

  That is, since not only the reflecting plate 8 but also the organic EL panel 7 plays a role as a reflecting plate, light can be efficiently emitted over the entire surface of the reflecting member 6. It is desirable to design the lighting circuit 4 in advance so that the fluorescent lamp 3 can be dimmed in the range of 100% to several tens of% of the maximum light emission. The lighting of the organic EL panel 7 is the same as in the first embodiment, and the lighting circuit 4 is designed in advance so that the organic EL panel 7 can be dimmed. The method of using the luminaire 1 according to the second embodiment is also the same as that of the first embodiment. By making each of the fluorescent lamp 3 and the organic EL panel 7 dimmable, the luminaire 1 is substantially 0-100. % Dimming can be realized.

  As described above, according to the lighting apparatus according to the second embodiment, the lamp can be dimmed in a wide range without causing extinction or flickering at low temperature and low dimming. As a result, improvement in space comfort and energy saving can be achieved. Further, by using two light source means, it is possible to ensure the illuminance at hand by causing the organic EL panel 7 to emit light when the lamp is replaced when the fluorescent lamp 3 is at the end of its life. Be improved.

  Moreover, in this Embodiment 2, since light can be reflected also in the location in which the organic electroluminescent panel 7 on the reflecting plate 8 is installed, light emission efficiency is high. Furthermore, in a lighting fixture having a reflector, the design is not limited by installing two light source means.

  The shapes of the reflecting plate 8 and the organic EL panel 7 that are the reflecting member 6 according to Embodiment 2 and the lighting fixture body 2 that fixes the reflecting member 6 are examples, and are not limited to the shapes shown in the drawing. The shape of the luminaire main body 2 can be appropriately changed in accordance with the shape of the fluorescent lamp 3 to be mounted, and the shape of the reflecting member 6 is also a shape that can efficiently reflect the light of the mounted fluorescent lamp 3. If so. Further, the size, number, and position of the organic EL panel 7 with respect to the reflecting plate 8 can be appropriately changed according to the required illuminance. For example, it is not necessary to attach the organic EL panel 7 on the surface of the reflecting plate 8, and it may be fitted into a hole or the like formed in the reflecting plate 8, and the reflecting member 6 combines the reflecting plate 8 and the organic EL panel 7. Any configuration can be used.

  In addition, the method for fixing the reflecting member 6 and the lighting fixture body 2 to the shapes of the reflecting member 6 and the lighting fixture body 2 is an example, and is not limited to the method shown in the drawing. For example, a framework for holding the reflecting member 6 may be formed on the lighting fixture main body 2, or the reflecting member 6 may be fixed so as to fit into the opening of the lighting fixture main body 2 having an opening.

(Embodiment 3)
In the third embodiment, a case where a reflecting plate 8 to which a light emitting diode 9 is attached is used as the reflecting member 6 will be described.

  FIG. 7 shows a perspective view of a lighting fixture according to Embodiment 3 of the present invention. The structural example of the lighting fixture 1 is the same as the lighting fixture 1 shown in Embodiment 1, except for the configuration of the reflecting member 6. The luminaire 1 includes a luminaire body 2, a fluorescent lamp 3, and a reflecting member 6. The luminaire main body 2 having the socket part 5 and the lighting circuit 4 built therein, and the fluorescent lamp 3 attached to the socket part 5 are the same as in the first embodiment. Compared with the first embodiment, the second embodiment is different in that the reflecting member 6 is composed of a light emitting diode 9 and a reflecting plate 8. In addition, in order to electrically connect the lighting circuit 4 and the light-emitting diode 9 or the fluorescent lamp 3 respectively, wiring (not shown) is appropriately provided.

  FIG. 8 is a cross-sectional view of the lighting fixture according to Embodiment 3. The reflecting member 6 includes a reflecting plate 8 having a shape in which both ends of a rectangular plate are bent in a U-shape and a plurality of light emitting diodes 9. The light emitting diodes 9 are respectively attached at equal intervals on the surface of the reflecting plate 8 on the fluorescent lamp 3 side. Although FIG. 8 shows a state in which the reflecting member 6 is fixed to the luminaire main body 2 on one plane of the reflecting plate 8, it is not limited to this fixing method. The reflection plate 8 is the same as that of the second embodiment, and may be any material that reflects light. For example, a sheet metal coated with white having a high reflectance is desirable.

  The light emitted from the fluorescent lamp 3 and directed toward the reflecting plate 8 is reflected by the reflecting plate 8. It is desirable to design the lighting circuit 4 in advance so that the fluorescent lamp 3 can be dimmed in the range of 100% to several tens of% of the maximum light emission.

  The lighting circuit 4 also includes a circuit for lighting the light emitting diode 9. When power is supplied to the light emitting diode 9 from the outside, the light emitting diode 9 is turned on. The light emitted from the light emitting diode 9 is emitted directly or after being reflected by the reflector 8. At this time, the reflector 8 is made of a metal that easily conducts heat, so that the reflector 8 also functions as a heat radiating plate of the light emitting diode 9. The lighting circuit 4 is designed in advance so that the current supplied to the light-emitting diode 9 can be changed and the light-emitting diode 9 can be dimmed.

  When using the lighting fixture 1 according to the third embodiment, the fluorescent lamp 3 is turned on at 100% in a place or situation where brightness is required, and the light of the fluorescent lamp 3 is reflected using the reflector 8. Further, when brightness is required, the light emitting diode 9 may be turned on. Further, the fluorescent lamp 3 is dimmed in a place or situation that does not require brightness. If further dimming is required, the fluorescent lamp 3 is turned off and the light emitting diode 9 is turned on. The light emitting diode 9 can also be dimmed. That is, the light emitting diode 9 can emit light with a light amount smaller than the minimum light emission of the fluorescent lamp 3, and the light can be adjusted within the range. In this way, by allowing the fluorescent lamp 3 and the light-emitting diode 9 to be dimmable, the lighting fixture 1 can be substantially 0 to 100% dimmable.

  Thus, according to the luminaire 1 according to the third embodiment, the luminaire 1 includes a wide range including a range of light intensity smaller than the minimum light emission of the fluorescent lamp 3 without causing extinction or flickering at the time of low temperature low dimming. Dimmable. As a result, improvement in space comfort and energy saving can be achieved. Furthermore, by using two light source means, it is possible to ensure the illuminance at hand by causing the light emitting diode 9 to emit light when the lamp is replaced at the end of the life of the fluorescent lamp 3, thereby improving workability and safety. Is done.

  In the third embodiment, the light emitting diode 9 is installed on the reflecting plate 8. However, since the light emitting diode 9 is a minimal element, it does not affect the reflection so much and maintains high light emission efficiency. Can do. Furthermore, in a lighting fixture having a reflector, the design is not limited by installing two light source means.

  The shapes of the reflection 8 plate and the light-emitting diode 9 that are the reflection members 6 according to Embodiment 3 and the lighting fixture body 2 that fixes the reflection member 6 are examples, and are not limited to the shapes shown in the drawings. The shape of the luminaire main body 2 can be appropriately changed in accordance with the shape of the fluorescent lamp 3 to be mounted, and the shape of the reflecting member 6 is also a shape that can efficiently reflect the light of the mounted fluorescent lamp 3. If so.

  Furthermore, the size, number, and position of the light-emitting diodes 9 with respect to the reflecting plate 8 can be changed as appropriate in consideration of required illuminance and reflection efficiency. For example, it is not necessary to attach the light emitting diode 9 on the surface of the reflecting plate 8, and the light emitting diode 9 may be attached to the lower end of the reflecting plate 8. . Alternatively, the light emitting diode 9 of multi-color light may be used to select the light emission color by the lighting control device so that the hue can be adjusted.

  Moreover, the fixing method of the reflection member 6 and the lighting fixture main body 2 is an example, and is not limited to the method shown in the drawing. For example, a framework for holding the reflecting member 6 may be formed on the lighting fixture main body 2, or the reflecting member 6 may be fixed so as to fit into the opening of the lighting fixture main body 2 having an opening.

  In the first and second embodiments, the case where the light source is the fluorescent lamp 3 and the organic EL panel 7 and the case where the light source is the fluorescent lamp 3 and the light emitting diode 9 are described in the third embodiment. However, the present invention is not limited to these combinations. For example, the organic EL panel 7 and the light emitting diode 9 may be attached to the reflecting member 6 and combined to be designed so that light control can be performed.

  In the first to third embodiments, the description has been made on the assumption that the lighting apparatus includes two straight fluorescent lamps 3. However, the number and shape of the lamps are not limited to this, and a circular tube, a spherical tube, a U-shaped tube, Other shapes such as a connecting pipe may be used. Moreover, although Embodiment 1 thru | or 3 demonstrated the lighting fixture main body 2 and the reflection member 6 separately, you may be formed integrally and the case where the lighting fixture main body 2 is a part of the reflection member 6 It can also be applied to.

  Although the embodiments of the invention have been described, the present invention is not limited to the above-described embodiments, and various embodiments are possible within the scope of the present invention.

  Other suitable modifications of the present invention include the following configurations.

About the lighting fixture which concerns on this invention, Preferably, the said reflection member is equipped with an organic electroluminescent element,
The second light source means is the organic electroluminescence element;
The light from the first light source means is reflected by a cathode included in the organic electroluminescence element.

Preferably, the reflection member includes an organic electroluminescence element and a reflection plate made of a material that reflects light,
The second light source means is the organic electroluminescence element;
The light from the first light source means is reflected by the cathode and the reflection plate included in the organic electroluminescence element.

Preferably, the reflecting member includes a light emitting diode and a reflector made of a material that reflects light,
The second light source means is the light emitting diode;
The reflection plate reflects light from the first light source means.

  More preferably, the light emitting diode is attached to a surface of one end of the reflecting plate on the first light source means side.

  Preferably, the first light source means is dimmable.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Lighting fixture main body 3 Fluorescent lamp 4 Lighting circuit 5 Socket part 6 Reflective member 7 Organic EL panel 7a Panel substrate 7b Cathode 7c Light emitting layer 7d Anode 7e Sealing film
8 Reflector 9 Light-emitting diode

Claims (6)

Comprising at least a luminaire main body, a first light source means made of a fluorescent tube attached to the luminaire main body, and a reflecting member that reflects light from the first light source means,
The reflecting member has second light source means;
A lighting circuit for lighting the first light source means and the second light source means;
The lighting device characterized in that the second light source means can be dimmed in a state where the first light source means is turned off. The reflective member includes an organic electroluminescence element,
The second light source means is the organic electroluminescence element;
The lighting apparatus according to claim 1, wherein light from the first light source unit is reflected by a cathode included in the organic electroluminescence element. The reflective member includes an organic electroluminescence element and a reflector made of a material that reflects light,
The second light source means is the organic electroluminescence element;
3. The lighting apparatus according to claim 1, wherein light from the first light source means is reflected by a cathode and the reflection plate included in the organic electroluminescence element. The reflecting member includes a light emitting diode and a reflector made of a material that reflects light,
The second light source means is the light emitting diode;
The lighting apparatus according to claim 1, wherein the light from the first light source unit is reflected by the reflecting plate.   The lighting apparatus according to claim 4, wherein the light emitting diode is attached to a surface of the reflector on the first light source means side.   The lighting apparatus according to any one of claims 1 to 5, wherein the first light source means is dimmable.

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