JP2012059573A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which is capable of selectively switching a plurality of light-emitting elements as light sources to a normal lighting mode or an auxiliary lighting mode, does not cause uncomfortable feeling, and is capable of suppressing enlargement of a substrate.SOLUTION: The lighting fixture according to the present invention comprises: a light source unit 6 provided with a plurality of light-emitting elements 61 and a substrate 62 having the light-emitting elements 61 mounted thereon; and mode switching means 29 capable of selectively switching to the normal lighting mode in which the light-emitting elements 61 are lit, or to the auxiliary lighting mode in which some of the light-emitting elements 61 are lit.

Description

  Embodiments described herein relate generally to a lighting fixture using a light emitting element such as an LED as a light source.

  Conventionally, in general lighting fixtures for homes, an annular fluorescent lamp is used as a main light source, and a small light bulb having a relatively small light output suitable for the night light is used as the night light separately from the main light source.

  On the other hand, recently, with the increase in output, efficiency, and widespread use of light emitting elements such as LEDs, lighting fixtures that can be expected to have a long lifetime using light emitting elements as light sources have been developed. When a light emitting element is used as the light source, the lighting is not caused by a discharge phenomenon, so that lighting by deep light control can be easily realized.

  Therefore, in a lighting fixture that uses a light-emitting element as a light source, it is conceivable that the light output is reduced by deeply adjusting the lighting of the light-emitting element without providing another light source, thereby providing the function of a nightlight.

JP 2005-142137 A

  However, in the case where the function of the night light is provided by deeply adjusting the lighting of the light emitting element as described above, since the light emitting portion has a planar shape unlike the conventional point light source, the lighting as a night light. In this state, the light emitting portion shines in a planar shape, causing a sense of discomfort. In addition to the light emitting element as the main light source, it may be possible to provide a light emitting element as a night light. However, the number of light emitting elements increases, and the substrate on which the light emitting elements are mounted may be increased in size. There is.

  The present invention has been made in view of the above problems, and can selectively switch a plurality of light-emitting elements as a light source to a normal lighting mode or an auxiliary lighting mode without causing a sense of incongruity and a large substrate. It aims at providing the lighting fixture which can suppress shaping.

  The lighting fixture by embodiment of this invention has a light source part provided with the some light emitting element and the board | substrate with which this some light emitting element was mounted. Further, mode switching means is provided which can selectively switch to a normal lighting mode for lighting the plurality of light emitting elements or an auxiliary lighting mode for lighting a part of the plurality of light emitting elements.

  According to the embodiment of the present invention, it is possible to selectively switch a plurality of light emitting elements as a light source to a normal lighting mode or an auxiliary lighting mode, without causing a sense of incongruity and suppressing an increase in size of the substrate. It is possible to provide a lighting fixture that can be used.

It is a perspective view which shows the lighting fixture which concerns on the 1st Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the same lighting fixture. It is a perspective view which shows the same instrument main body seeing from the back side. It is a top view which shows the same instrument main body from the front side. It is the top view which shows the arrangement | positioning relationship of the light-guide plate and board | substrate in the instrument main body, and takes out and shows a specific board | substrate. FIG. 4 is a cross-sectional view taken along line XX in FIG. 3. It is an enlarged view which shows the A section in FIG. It is an enlarged view which shows the B section in FIG. It is a block block diagram of the lighting fixture. It is sectional drawing which shows the attachment state to the ceiling surface of the lighting fixture. Similarly, it is sectional drawing which shows the attachment state to the ceiling surface of a lighting fixture. It is sectional drawing corresponding to FIG. 6 which shows the lighting fixture which concerns on the 2nd Embodiment of this invention. It is a top view which shows the same instrument main body from the front side.

  A first embodiment of the present invention will be described below with reference to FIGS. In each drawing, the wiring connection relationship using lead wires or the like is omitted. In addition, the same code | symbol is attached | subjected to the same part and the overlapping description is abbreviate | omitted.

  The lighting fixture of this embodiment is a type used by being attached to a hanging ceiling body installed on the fixture mounting surface, and for example, lighting a room using a light guide plate.

  1 to 4, the lighting fixture includes an adapter A (FIG. 2 and FIG. 2) that is electrically and mechanically connected to the fixture body 1 and a hooking sealing body Cb installed on the ceiling surface C as the fixture mounting surface. 10) and an infrared remote control transmitter R. As shown in FIG. 1, the instrument body 1 is formed in a substantially square appearance, and the front side is a light irradiation surface and the back side is a mounting surface to the ceiling surface C.

  As representatively shown in FIG. 2, the instrument body 1 includes a lighting device 2, a reflector plate 3, a chassis 4, an adapter guide 5, a light source unit 6, a light guide plate 7, an auxiliary component unit 8, A main body frame 9 and a cover member 10 are provided. These components will be described sequentially.

  As described with reference to FIG. 7, the lighting device 2 includes a case 21 made of metal such as aluminum having thermal conductivity, a circuit board 22 attached to and accommodated in the case 21, and the circuit board. 22 and a circuit component 23 mounted on the circuit board 22. The case 21 is formed in a thin box shape having a substantially rectangular parallelepiped shape. On one long side and one short side, a bowl-shaped connection portion 21a extending outward along the side is formed. ing. Moreover, the attachment tongue piece 21b is extended and formed in the long side which opposes one long side.

  The circuit board 22 is made of an insulating material such as glass epoxy resin, and is formed in a substantially rectangular plate shape. On the surface side, circuit components 23 such as a control IC, a capacitor, a winding component, and a resistance element are mounted. ing. In addition, the circuit board 22 is attached to the case 21 by a resin fixture 22a with the front side facing downward in the drawing.

  The lighting device 2 as described above is electrically connected to the adapter A side and connected to a commercial AC power source via the adapter A. Therefore, the lighting device 2 receives this AC power supply, generates a DC output, supplies the DC output to the light emitting element 61 via the lead wire, and controls the lighting of the light emitting element 61. The lighting device 2 is mounted on the back side of the reflector 3 (refer mainly to FIG. 3).

  The reflection plate 3 also serves as a heat radiating member and functions as a heat radiating member. The reflection plate 3 is formed in a substantially square shape from a metal material such as aluminum having thermal conductivity, and has a square shallow dish-shaped recess 31, and extends outward on each side of the recess 31. A mounting piece 32 is formed. Further, the front side of the recess 31 is configured as a reflecting surface, and a rectangular opening 33 is formed in a substantially central portion.

  The chassis 4 is formed in a substantially rectangular parallelepiped box shape from a metal material such as a cold-rolled steel plate, and one end side (the lower side in the drawing) is opened. A hook-shaped contact portion 41 extending in the direction is formed. A circular opening 52 is formed on the other end side (upper side in the drawing). Therefore, the chassis 4 has a substantially cylindrical shape with a low height as a whole. The contact portion 41 is a portion that contacts the back side of the light guide plate 7, and the opening 42 is a portion through which the adapter A is inserted. And as shown in FIG. 7, it arrange | positions so that the peripheral part of the opening 33 in the reflecting plate 3 may overlap | superpose on the upper surface side of the contact part 41 of the chassis 4, and this is fixed by welding etc. As shown in FIG. The contact portion 41 of the chassis 4 has a function of reinforcing the light guide plate 7.

  As shown with reference to FIG. 7, the adapter guide 5 is formed in a substantially octagonal prism shape, and is provided with an engagement port 51 through which the adapter A is inserted and engaged at the center, and is provided at the lower end side. A flange portion 52 is formed toward the direction. The adapter guide 5 is disposed and attached such that the outer peripheral surface thereof is in contact with the inner peripheral surface of the chassis 4.

  As shown in FIGS. 2, 5, 6, and 8, the light source unit 6 includes a substrate 62 on which a light emitting element 61 that is a light source is mounted, and an attachment plate 63 as an attachment member to which the substrate 62 is attached. It is configured. FIG. 5 shows the positional relationship between the light guide plate 7 and the substrate 62, and shows a specific substrate 62A taken out.

  The substrate 62 is formed in a horizontally long rectangular shape, and is formed of a glass epoxy resin flat plate as an insulating material. A wiring pattern formed of copper foil is applied to the surface side. Further, a resist layer is appropriately applied. Note that when the material of the substrate 62 is an insulating material, a ceramic material or a synthetic resin material can be applied. Furthermore, when it is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation may be applied.

  The light emitting element 61 is an LED, which is a surface mount type LED package. A plurality of, specifically, 15 LED packages are arranged and arranged in a straight line along the longitudinal direction of the substrate 62. The LED package is generally composed of an LED chip disposed in a main body formed of ceramics, and a translucent resin for molding such as an epoxy resin or a silicone resin that seals the LED chip. Yes.

  As will be described later, among the light emitting elements 61 mounted on a specific substrate 62A, some of the light emitting elements 61A are used as auxiliary light sources (see FIG. 5). Specifically, out of a plurality of light emitting elements 61 mounted on a specific substrate 62A, two light emitting elements 61A located on the end side of the substrate 62A are used as auxiliary light sources, that is, night lights. Yes.

  The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light, a yellow phosphor that emits yellow light that is complementary to blue light is used. Yes.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 62, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

The mounting plate 63 is made of a material having good heat conduction, such as aluminum or galvanized steel plate, and is horizontally long and has a substantially C-shaped channel shape. On the inner side wall of the mounting plate 63, two substrates 62 are mounted side by side in the longitudinal direction so that the back surfaces thereof are in close contact by screwing or the like. Therefore, the light source unit 6 is unitized by attaching two substrates 62 to one mounting plate 63.
In the present embodiment, as shown mainly in FIG. 2, four unitized light source sections 6 are used and arranged corresponding to each side of the light guide plate 7.

The light guide plate 7 is formed in a rectangular flat plate shape using a material having high transmittance such as acrylic resin, and a dot pattern composed of a large number of white reflective dots that diffuse light is formed on the back side by printing. Yes. Further, a substantially octagonal opening 71 is formed at a substantially central portion of the light guide plate 7 so as to correspond to the outer shape of the adapter guide 5 and to correspond to the adapter A. The substantially octagonal opening 71 is originally formed as a shape with chamfered square corners. Further, each side of the rectangular shape that is the outer peripheral portion of the light guide plate 7, that is, the side end surface, functions as a light incident end surface 72 through which light emitted from the light emitting element 61 is incident and travels in the light guide plate 7. It has become. And the light-guide plate 7 is comprised as a light emission part which has a planar light emission area | region in the front side.
In addition, what provided the reflective sheet in the back side, and what provided the diffusion sheet in the front side are applicable to the light-guide plate 7 suitably.

  As shown in FIG. 8, the auxiliary component unit 8 includes a unit board 82 and a plurality of electrical auxiliary parts mounted on the board 82 in a horizontally long box-like case 81. The electrical auxiliary components in the present embodiment are an infrared remote control signal receiver 84, an illuminance sensor 85, and the like.

  The auxiliary component unit 8 is disposed on the outer peripheral edge of the lighting fixture, that is, the fixture main body 1, specifically, on one side of the main body frame 9. Accordingly, the light guide plate 7 is disposed outside the light emitting region.

  The auxiliary component unit 8 configured as described above is provided with a plurality of electric auxiliary components in a centralized manner, fitted into an opening formed in the main body frame 9, and the flange 81b1 of the case cover 81b is locked. Then, it is attached to the main body frame 9 by fixing means (not shown).

  The main body frame 9 is made of a synthetic resin such as ABS resin or polycarbonate, has a substantially square shape and is formed in a frame shape larger than the dimension of the light guide plate 7, and includes a side wall 91 and a lower end of the side wall 91. A bottom wall 92 having an inclined portion extending inward from the portion and rising obliquely. A plurality of bosses 93 are erected on the bottom wall 92, and the attachment pieces 32 of the reflector 3 are screwed to the bosses 93. Further, as described above, the bottom wall 92 corresponding to one side of the square shape is formed with an opening portion into which the auxiliary component unit 8 is fitted.

  The cover member 10 is formed in a substantially square shape from a synthetic resin material having a milky white color such as an acrylic resin or polycarbonate, and is detachably attached to the adapter guide 5 by an engagement / disengagement means (not shown). Therefore, when the cover member 10 is attached, the adapter A is covered and can be made difficult to visually recognize from below.

  2 and 10, the adapter A is electrically and mechanically connected to a hooking sealing body Cb installed on the ceiling surface C by a hooking blade provided on the upper surface side. A pair of locking portions A1 are provided on both sides of the peripheral wall so as to always protrude to the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating a lever provided on the lower surface side. Further, a power cord (not shown) connected to the lighting device 2 is led out from the adapter A, and is connected to the lighting device 2 via a connector.

  The infrared remote control transmitter R transmits, for example, a specific coded infrared remote control signal in the form of a pulse having a frequency of 38 kHz. For example, a normal lighting mode button (main light source lighting button) and an auxiliary lighting mode button (Nightlight button), off button, etc. are provided. By operating the remote control transmitter R toward the auxiliary component unit 8, that is, the infrared remote control signal receiving unit 84, the light emitting state of the light emitting element 61 in the light source unit 6, that is, the normal lighting mode, the auxiliary lighting mode, the extinction, etc. Control can be performed by switching.

  Next, a block configuration of the lighting apparatus according to the present embodiment will be described with reference to FIG. As shown in the figure, the lighting device 2, a board 62 on which the light emitting element 61 is mounted, and a unit board 82 on which an infrared remote control signal receiver 84 is mounted are schematically shown.

  The lighting device 2 functions as a direct current power source and is connected to a commercial alternating current power source AC. The lighting device 2 receives the alternating current power source AC and generates a direct current output. The commercial AC power supply AC is connected to the input terminal of the full wave rectifier circuit 24, and a smoothing capacitor 25 is connected between the output terminals of the full wave rectifier circuit 24. Instead of the smoothing capacitor 25, a power factor correction circuit that mainly constitutes a boost chopper may be used. A DC voltage conversion circuit 26 and current detection means 27 are connected to the smoothing capacitor 25. This DC power supply has a control function of feeding back a current control signal to the DC voltage conversion circuit 26 in accordance with the detection result of the current detection means 27 in order to make the output current constant.

  The DC voltage conversion circuit 26 can be constituted by a step-down chopper, a step-up chopper, a DC-DC converter, etc. In this case, the on period and on / off frequency of a switching element such as a chopper are controlled by the feedback control. Thus, a constant current can be achieved.

  In addition, a unit substrate 82 is connected to the DC voltage conversion circuit 26 via a lighting circuit control unit 28, and a substrate 62, that is, a plurality of light emitting elements 61, is connected between its output terminals via a mode switching means 29. For example, two series circuits connected in series are connected in parallel. Therefore, among the four light sources 6 that are unitized as described above, a plurality of light emitting elements 61 in the adjacent light sources 6 are connected in series to form one series circuit.

Furthermore, among these light emitting elements 61, a specific light emitting element 61A is used as an auxiliary light source, that is, a nightlight. Specifically, for example, the specific two light emitting elements 61A are used as a night light as a main light source. A mode switching means 29 is connected to one end of the two specific light emitting elements 61A.
The unit board 82 is provided with a remote control circuit 82a, an infrared remote control signal receiver 84, an illuminance sensor 85, and the like.

  In such a configuration, for example, when the normal lighting mode button is selected by operating the infrared remote control transmitter R, the coded infrared remote control signal is received by the infrared remote control signal receiving unit 84, and the signal is controlled by the remote control. The signal is transmitted to the mode switching means 29 through the circuit 82a and the lighting circuit control unit 28. This mode switching means 29 determines that the normal lighting mode has been selected, and operates so that all the light emitting elements 61 are in the lighting state. That is, it functions to supply power to two series circuits in which a plurality of light emitting elements 61 are connected in series.

  Further, when the auxiliary lighting mode button is selected by operating the infrared remote control transmitter R, the signal is transmitted to the mode switching means 29 through the remote control circuit 82a and the lighting circuit control unit 28 as described above. The mode switching means 29 determines that the auxiliary lighting mode has been selected, and functions to select only the specific light emitting element 61A, that is, the specific two light emitting elements 61A, and to supply power only to this.

  As described above, by providing the mode switching means 29, it is possible to selectively use the normal lighting mode or the auxiliary lighting mode. In this case, in the auxiliary lighting mode, a part of the plurality of light emitting elements 61 is selected and power is supplied. In the normal lighting mode, dimming may be performed with a predetermined dimming ratio.

  In the configuration of the lighting fixture as described above, as shown in FIG. 7, the contact portion 41 of the chassis 4 is in contact with the back side of the light guide plate 7. More specifically, the contact portion 41 of the chassis 4 is disposed on and in contact with the periphery of the opening 71 on the back side of the light guide plate 7. The contact of the contact portion 41 of the chassis 4 with the back side of the light guide plate 7 may be performed directly or indirectly.

  As shown in FIGS. 3, 6, and 8, the reflection plate 3 as a heat radiating member is disposed on the back side of the light guide plate 7 and is screwed and attached to a plurality of bosses 93 of the main body frame 9.

  Further, the peripheral edge portion on the front surface side of the opening 71 in the light guide plate 7 is supported by the flange portion 52 on the lower end side of the adapter guide 5. Further, as representatively shown in FIG. 8, the outer peripheral edge portion on the front surface side of the light guide plate 7 is supported by the inclined portion of the bottom wall 92 in the main body frame 9. On the other hand, the reflection plate 3 is disposed on the back side of the light guide plate 7 as described above. The light guide plate 7 includes the reflection plate 3, the flange portion 52 of the adapter guide 5, and the bottom wall of the main body frame 9. It arrange | positions so that it may be pinched | interposed by 92 inclined-shaped parts. In this state, the light incident end surface 72 of the light guide plate 7 is positioned to face the light emitting element 61 so that light emitted from the light emitting element 61 is incident thereon.

  As shown in FIGS. 1, 4, and 6, the auxiliary component unit 8 is disposed outside the light emitting region of the light guide plate 7 as a light emitting unit and at the outer peripheral edge. Therefore, it can be avoided that the auxiliary component unit 8, that is, the auxiliary component forms a dark part on the light guide plate 7. In addition, since the auxiliary component unit 8 is provided with a plurality of electrical auxiliary components such as the infrared remote control signal receiving unit 84 in a centralized manner, wiring processing and assembly work can be made more efficient. Furthermore, since it is arrange | positioned in an outer periphery part, the improvement of design property can be anticipated without being conspicuous.

  As shown in FIGS. 3, 6, and 8, a gap G is formed between the side wall 91 of the main body frame 9 and the mounting piece 32 of the reflecting plate 3. That is, the outer shape of the reflecting plate 3 is smaller than the frame-shaped main body frame 9, and the gap G is formed over the entire circumference of the reflecting plate 3. The heat generated from the light emitting element 61 by the gap G is radiated by the convection action through the mounting plate 63 and the mounting piece 32 of the reflecting plate 3. In order to promote this convection action, an air circulation hole may be formed in the bottom wall 92 of the main body frame 9.

  Next, the attachment state to the ceiling surface C of a lighting fixture is demonstrated with reference to FIG.10 and FIG.11. In addition, illustration of the power cord derived | led-out from the adapter A is abbreviate | omitted in each figure.

  As shown in FIG. 10, a hanging ceiling body Cb is installed on the ceiling surface C. The adapter A is electrically and mechanically connected to the hooking sealing body Cb. From this state, as shown by the arrow in the figure, until the engaging portion 51 of the adapter A is engaged with the engaging port 51 of the adapter guide 5 while the engaging port 51 of the adapter guide 5 in the instrument main body 1 is aligned with the adapter A. The instrument body 1 is pushed up from below by hand to perform the mounting operation.

  As shown in FIG. 11, in the mounted state of the instrument body 1, the adapter A is inserted through the opening 52 of the chassis 4, and the locking portion A 1 of the adapter A is locked to the engaging port 51 of the adapter guide 5. Retained.

  Further, when removing the instrument main body 1, it can be removed by removing the cover member 10 and operating the lever provided on the adapter A to disengage the engaging portion A 1 of the adapter A.

  When electric power is supplied to the lighting device 2 in the mounted state of the lighting fixture, the light emitting element 61 is energized through the substrate 62, and each light emitting element 61 is lit. The light emitted from the light emitting element 61 enters the light incident end surface 72 of the light guide plate 7, and the incident light is totally reflected within the light guide plate 7 and spreads over the entire light guide plate 7, and is formed on the back side. The light diffused and reflected by the dot pattern composed of the reflective dots is radiated from the light emitting region on the front side. In addition, a part of the light leaking from the light guide plate 7 is reflected by the reflecting plate 3 and radiated to the front side to be reused.

  Further, by operating the infrared remote control transmitter R toward the infrared remote control signal receiving unit 84, the light emission state of the light emitting element 61 in the light source unit 6 can be controlled. That is, as shown in FIGS. 4 and 5, in the auxiliary lighting mode, a specific part of the light emitting elements 61 </ b> A among the plurality of light emitting elements 61 is turned on, so that the entire planar light emitting unit is not illuminated. And it becomes possible to function as a nightlight without feeling uncomfortable. Further, in this case, since a part of the plurality of light emitting elements 61 that are turned on in the normal lighting mode is also used, the size of the substrate 62 can be increased without significantly increasing the number of light emitting elements 61 as auxiliary light sources. Can be suppressed.

  During the lighting of the light emitting element 61, heat is generated. The heat generated from each light emitting element 61 is conducted from the back surface side of the substrate 62 to the mounting plate 63, and the heat conducted to the mounting plate 63 is conducted to the mounting piece 32 in the reflecting plate 3 as a heat radiating member and reflected. Heat is effectively dissipated over a wide area of the plate 3. In addition, the heat is conducted to the connection portion 21 a in the case 21 of the lighting device 2 connected to the attachment piece 32, and is transmitted to the case 21 to be radiated. Therefore, the heat from the light source unit 6 is conducted to both the reflector 3 and the case 21 and efficiently radiated. These heat dissipations increase the overall heat dissipation effect.

  In the above-described configuration, four unitized light source units 6 are used and arranged corresponding to each side of the light guide plate 7. For example, two light source units 6 are used and this is used. May be arranged corresponding to two adjacent sides. Furthermore, the light source unit 6 may be arranged corresponding to only one side of the light guide plate 7 or two opposite sides, and the arrangement form of the light source unit 6 is not particularly limited. It can be appropriately selected according to the design.

  As described above, according to the present embodiment, it is possible to selectively switch the plurality of light emitting elements 61 as the light source to the normal lighting mode or the auxiliary lighting mode, without causing a sense of incongruity, and the large size of the substrate. It is possible to provide a lighting apparatus capable of suppressing the conversion.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to 1st Embodiment and an equivalent part, and the overlapping description is abbreviate | omitted.

  In the first embodiment, the light emitted from the light emitting element 61 is described as being illuminated using the light guide plate 7 that is a light emitting unit, but in this embodiment, the light guide plate 7 is not used. For example, the light emitted from the light emitting element 61 mounted on the substrate 62 is transmitted through a translucent milky translucent cover Cv having diffusibility, for example, to perform illumination.

  The lighting fixture of this embodiment is configured to have a substantially circular outer shape (see FIG. 13). A substantially ring-shaped substrate 62 on which a plurality of light emitting elements 61 are mounted as a light source is disposed on the back side of the instrument body 1. On the surface side of the substrate 62, a plurality of light emitting elements 61 are mounted radially, and for example, an infrared remote control signal receiving unit 84 is mounted as an electrical auxiliary component. That is, a plurality of light emitting elements 61 and electrical auxiliary components are mounted on the same substrate 62.

  Furthermore, of the plurality of light emitting elements 61 mounted on the substrate 62, two light emitting elements 61A located near the center are used as auxiliary light sources, that is, night lights.

  A translucent cover Cv is provided on the front side of the substrate 62 so as to cover the surface side of the substrate 62. Therefore, the light emitted from the light emitting element 61 is radiated to the outside through the translucent cover Cv, and the translucent cover Cv functions as a planar light emitting unit having a predetermined light emitting region.

  In such a configuration, for example, when the normal lighting mode is selected by operating the infrared remote controller transmitter R, all the light emitting elements 61 operate so as to be lit, and light is emitted from the planar light emitting unit. Is done. When the auxiliary lighting mode is selected, only the specific light emitting element 61A, that is, the specific two light emitting elements 61A are lit, and function as a night light of a point light source.

  As described above, according to the present embodiment, in addition to the same effects as those of the first embodiment, the electrical auxiliary component is mounted on the same substrate as the substrate 62 on which the plurality of light emitting elements 61 are mounted. It is possible to omit a lead wire or the like derived from an electrical auxiliary component or to shorten the wiring length thereof, and to simplify the configuration.

  In the second embodiment, the case where the specific light emitting element 61A is turned on and functions as a nightlight when the auxiliary lighting mode is selected has been described. However, the intended purpose is also achieved by the following embodiment. Can be achieved.

  For example, the light-emitting portion can be dimmed, that is, the light-emitting element 61 can be dimmed and turned on until all the light-emitting elements 61 are dimmed up to a certain dimming degree. To do. Then, when the dimming degree is further deepened continuously, the light is turned off with dimming in the direction from the light emitting element 61 arranged at the outer peripheral portion toward the light emitting element 61 arranged at the central portion. It will be in a state to go.

  Therefore, the light emitting element 61 arranged in the central direction, that is, a part of the plurality of light emitting elements 61 can be turned on in a dimmed state, and in this state, it can function as a night light. Become. In this case, the mode switching means is a means for operating from a state in which all the light emitting elements 61 are lit to a state in which some of the light emitting elements 61 are lit.

  Furthermore, the present invention is not limited to the configuration of each of the embodiments described above, and various modifications can be made without departing from the spirit of the invention. For example, the light emitting element can be a solid light emitting element such as an LED or an organic EL. Further, the number of light emitting elements is not particularly limited.

DESCRIPTION OF SYMBOLS 1 ... Instrument main body, 2 ... Lighting apparatus, 3 ... Reflector plate, 5 ... Adapter guide,
4 ... chassis, 6 ... light source, 7 ... light guide plate, 8 ... auxiliary component unit,
9 ... body frame, 10 ... cover member, 29 ... mode switching means,
61 ... light emitting element, 61A ... specific light emitting element (auxiliary light source), 62 ... substrate,
72 ... light incident end face, 84 ... infrared remote control signal receiver,
R ... Infrared remote control transmitter

Claims (2)

A light source unit including a plurality of light emitting elements and a substrate on which the plurality of light emitting elements are mounted;
Mode switching means capable of selectively switching to a normal lighting mode for lighting the plurality of light emitting elements or an auxiliary lighting mode for lighting a part of the plurality of light emitting elements;
The lighting fixture characterized by comprising.   The lighting apparatus according to claim 1, wherein an electrical auxiliary component is mounted on the substrate on which the plurality of light emitting elements are mounted.

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