JP2014130849A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device with no glare.SOLUTION: A lighting device according to one embodiment includes: a reflector including a reflection surface; and a light source part which is disposed below the reflector and emits light toward the reflector. The light source part includes a body installed along a length direction of the reflector and including a first outer surface and a second outer surface which incline so as to be oriented to the reflection surface; multiple first light emitting elements installed on the first outer surface; and multiple second light emitting elements installed on the second outer surface. The multiple first and second light emitting elements emit light toward the reflector.

Description

The present invention relates to a lighting device.

A light emitting diode (LED) is a type of semiconductor element that converts electrical energy into light.
Light emitting diodes have the advantages of low power consumption, semi-permanent lifetime, quick response speed, safety, and high environmental compatibility compared to conventional light sources such as fluorescent lamps and incandescent lamps. Therefore, much research has been conducted to replace conventional light sources with light-emitting diodes. Light-emitting diodes are used as light sources for lighting devices such as various lamps, liquid crystal display devices, electric bulletin boards, and street lamps used indoors and outdoors. Usage is increasing.

  The present invention provides an illumination device that is free of glare.

  The present invention provides an illumination device that effectively releases heat generated by a light source.

An illuminating device according to an embodiment includes a reflector including a reflecting surface, and a light source unit disposed under the reflector to emit light toward the reflector, the light source unit extending in a length direction of the reflector. A body including a first outer surface and a second outer surface that are installed along the surface and are inclined toward the reflecting surface;
A plurality of first light emitting elements disposed on an outer surface and a plurality of second light emitting elements disposed on the second outer surface, wherein the plurality of first and second light emitting elements are directed toward the reflector. Emit light.

  The present invention can provide a lighting device without glare.

  The present invention can provide a lighting device that effectively releases heat generated by a light source.

It is sectional drawing of the illuminating device by 1st Example of this invention. It is a perspective view of the illuminating device of FIG. It is sectional drawing of the light source part of the illuminating device of FIG. It is a figure explaining the isolation | separation state of the light source part and socket part of the illuminating device of FIG. It is a figure explaining the coupling | bonding state of the light source part and socket part of the illuminating device of FIG. It is a figure explaining the coupling principle of the 1st, 2nd connection terminal of the illuminating device of FIG. 1, and a 1st, 2nd socket part. It is a figure explaining the coupling principle of the 1st, 2nd connection terminal of the illuminating device of FIG. 1, and a 1st, 2nd socket part. It is a perspective view of the light source part of the illuminating device by 2nd Example of this invention. It is a perspective view of the illuminating device by 3rd Example of this invention. It is a perspective view of the illuminating device by 4th Example of this invention. It is a perspective view of the illuminating device by 5th Example of this invention. It is a perspective view of the illuminating device by 6th Example of this invention. It is a figure which shows the coupling | bonding relationship of the light source part and 1st support part of the illuminating device by 6th Example of this invention. It is a perspective view of the illuminating device by 7th Example of this invention.

In the description of the present invention, each layer, region, or structure is described as being formed “on” or “under” the substrate, each layer, region, or structure. ,"Up"
And “below” are “directly” and “indirectly”
Any meaning of is included. In addition, the reference about the top or bottom of each layer will be described with reference to the drawings.

Hereinafter, an illumination device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
<First embodiment>
FIG. 1 is a sectional view of a lighting device 100 according to the first embodiment, and FIG. 2 is a perspective view of the lighting device 100 according to the first embodiment. FIG. 3 is a cross-sectional view of the light source unit 30 of the lighting apparatus 100 according to the first embodiment, and FIGS.

As shown in FIGS. 1 and 2, the lighting device 100 includes a housing 10, a reflector 20, and a light source unit 30.

The housing 10 may be in the form of a box that can accommodate the reflector 20. The housing 10 has an opening 11 from which a reflecting surface 21 for reflecting light is exposed in the reflector 20 and from which light is emitted. However, the form of the housing 10 is not limited to this.

The reflector 20 may be installed in the housing 10. The reflector 20 may have a parabola-shaped reflecting surface 21 having two parabolas. That is, the reflection surface 21 includes two parabolic reflection surfaces 21a and 21b. However, the shape of the reflecting surface 21 of the reflector 20 can be variously changed according to the design of the lighting device 100.

The two parabolic reflecting surfaces 21a and 21b are joined together to form a boundary portion 22, and the boundary portion 22 is formed along the length direction of the illuminating device 100 and extends in a direction perpendicular to the light source portion 30. Wrapped.

The material and hue of the reflector 20 can be changed according to the illumination that the lighting device 100 is to implement. For example, the reflector 20 may be formed of a white material with high reflection efficiency, or may be coated with silver (Ag) or aluminum (Al) on the surface.

As shown in FIGS. 1 to 5, the light source unit 30 is formed from the center of the opening 11 to the reflector 2.
It can be formed along the length direction of zero. For example, the light source unit 30 may be formed in the opening 11 of the housing 10 along the boundary 22 of the reflector 20.

The light source part 30 is supported and fixed by the first socket part 41 and the second socket part 42 formed on the inner surface of the housing 10.

The light source unit 30 extends along the length direction of the reflector 20 and includes a main body 32 including an inclined outer surface, a light emitting groove 33 formed on the outer surface, and a light emitting diode 31 mounted on the light emitting groove 33. The first connection terminal 36 and the second connection terminal 37 are formed at both ends of the main body 32.

The main body 32 is preferably formed of a material that effectively releases heat. For example, aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), titanium (Ti) ), Molybdenum (Mo), tungsten (W), gold (Au), platinum (Pt) and the like. Alternatively, the main body 32 may be formed of various resin materials, but the present invention is not limited to this.

The main body 32 may be formed of a white material having high reflection efficiency, or the surface of the main body 32 may be coated with silver (Ag) or aluminum (Al).

The main body 32 may have a polygonal cross section and is extended along the length direction of the reflector 20. 1 to 5, the main body 32 is illustrated as having a fan-shaped cross section.
The present invention is not limited to this.

As shown in FIGS. 1 and 3, for example, both side surfaces of the main body 32 may form the first outer surface 38 and the second outer surface 39 that are inclined toward the reflecting surface 21 of the reflector 20.

That is, both side surfaces of the main body 32 have the first outer surface 38 and the second outer surface 39, and the first outer surface 38 and the second outer surface 39 are two parabolic reflecting surfaces of the reflecting surface 21. 21a,
21b can be opposed to each other.

Meanwhile, an inclined outer surface may be further formed on both side surfaces of the main body 32, and is not limited to the case where the first and second outer surfaces 38 and 39 are formed.

4 and 5, the both sides of the main body 32, that is, the first outer surface 38 and the second outer surface 39 are extended along the length direction of the reflector 20. Light emitting groove 33
Can be formed.

The depth and width of the light emitting groove 33 can be variously adjusted according to the light distribution of the light emitting diodes 31 mounted in the light emitting groove 33. At this time, the depth and width of the light emitting groove 33 is such that light emitted from the light emitting diode 31 mounted in the light emitting groove 33 is not directly emitted to the outside through the opening 11 but reflected by the reflector 21. Then, it can be adjusted so that it can be discharged to the outside through the opening 11.

The light emitting diode 31 is mounted in the light emitting groove 33. A plurality of the light emitting diodes 31 may be mounted in the light emitting groove 33 in an array, but the arrangement and number of the light emitting diodes 31 are not limited.

As the light emitting diode 31, a light emitting diode that emits red, blue, green, or white light can be selectively used, and other light emitting diodes that emit light of various colors can be used.

The light emitted from the light emitting diode 31 is emitted toward the reflecting surface 21 of the reflector 20, that is, the two parabolic reflecting surfaces 21a and 21b. Accordingly, the light emitted from the light emitting diode 31 is not directly provided to the user, but can be provided to the user after being reflected by the reflector 20. This can provide the user with a gentle light with reduced glare.

A substrate (not shown) is disposed in the light emitting groove 33, and the light emitting diode 31 is mounted on the substrate (not shown), so that the light emitting diode 31 can be electrically connected.
Alternatively, a plurality of electrodes (not shown) may be disposed in the light emitting groove 33, and the light emitting diode 31 may be electrically connected by the plurality of electrodes (not shown).

A lens (not shown) may be disposed in the light emitting groove 33 so that the light distribution of light emitted from the light emitting diode 31 can be adjusted appropriately. Alternatively, the light emitting grooves 33 may be filled with a resin member (not shown), and the light distribution of light can be adjusted by the resin member (not shown). A phosphor may be added to the lens (not shown) or the resin member (not shown).

Concavities and convexities 34 may be formed on the lower surface of the main body 32 of the light source unit 30, and the concavities and convexities 34 can effectively release heat by increasing the surface area of the light source unit 30. The unevenness 34 may be formed to extend along the length direction of the light source unit 30.

As shown in FIGS. 4 and 5, the first connection terminal 36 and the second connection terminal 37 may be formed at both ends of the main body 32 of the light source unit 30. The first connection terminal 36 and the second connection terminal 37.
May be formed to correspond to the first socket part 41 and the second socket part 42 formed on the inner surface of the housing 10, respectively.

The first connection terminal 36 and the second connection terminal 37 are coupled to the first socket part 41 and the second socket part 42, so that the first socket part 41 and the second socket part 42 support the light source part 30. , Fix.

The first connection terminal 36 and the second connection terminal 37 are supplied with power from the first socket part 41 and the second socket part 42, respectively, so that the light emitting diode 31 emits light.

The first socket part 41 is connected to the first connection terminal 36 to form a first connection part, and the second socket part 42 is connected to the second connection terminal 37 to form a second connection part.

At least one of the first coupling unit and the second coupling unit may include a control unit that receives the driving signal and controls and drives the light source unit 30.

The control unit allows the light emitting diode 31 that emits light of a desired color to selectively emit light, or adjusts the brightness and color of the light emitting diode 31 so that a plurality of the light emitting diodes 31 are mounted on the light source unit 30. The light emitting diode 31 can be controlled to provide various illuminations.

When the light source unit 30 is used after being combined with the first socket unit 41 and the second socket unit 42 by the first connection terminal 36 and the second connection terminal 37, or when the life ends or fails,
The first connection terminal 36 and the second connection terminal 37 can be separated from the first socket part 41 and the second socket part 42 and easily exchanged.

6 and 7 show the first and second connecting terminals 36 and 37 and the first and second socket portions 41 and 4.
It is a figure explaining the coupling principle of 2. FIG.

4 to 7, the form of the first connection terminal 36 and the form of the second connection terminal 37 may be different from each other, and the form of the first socket part 41 and the form of the second socket part 42 are also different. May be different from each other. Thereby, when a user couple | bonds the said light source part 30 with the said 1st socket part 41 and the 2nd socket part 42, it can couple | bond correctly, without mixing both.

For example, the first connection terminal 36 may include a block part 36a and a protrusion part 36b protruding below the block part 36a, and the block part 36a and the protrusion part 36b may be integrally formed.

The first socket part 41 may be formed in a form corresponding to the first connection terminal 36, and the protrusion 36 b may be inserted into an insertion part formed in the first socket part 41.

At this time, referring to FIG. 6A, a through hole 41a is formed in the insertion portion, and the protruding portion 36 can be inserted so as to penetrate the through hole 41a. Alternatively, referring to FIG. 6B, an insertion groove 41b may be formed in the insertion portion, and the protrusion 36 may be inserted and disposed in the insertion groove 41b.

Meanwhile, as shown in FIG. 7, the second connection terminal 37 may include only a block portion 37a. The second socket part 42 may be formed in a form corresponding to the second connection terminal 37, and the second connection terminal 37 may be inserted and coupled to the second socket part 42.

Meanwhile, the first and second connection terminals 36 and 37 and the first and second socket parts 41 and 42 are not limited to those illustrated, and may have various forms.

For example, the cross sections of the block portions 36a and 37a of the first and second connection terminals 36 and 37 may have a circular shape, an elliptical shape, or a polygonal shape such as a triangular shape or a pentagonal shape. Also,
The protrusion 36b may have a shape such as a quadrangle, a triangle, a circle, or an ellipse, but the present invention is not limited to this.

In addition, the first and second connection terminals 36 and 37 may be formed in the same form, and any of the first and second connection terminals 36 and 37 may or may not have a protrusion. May be.

The first and second connection terminals 36 and 37 may include at least two pins, and the first and second socket portions 41 and 42 may be inserted with the at least two pins. The first and second connecting terminals 36, 3
7 and the first and second socket parts 41 and 42 may be connected to each other, but the present invention is not limited thereto.
<Second embodiment>
Hereinafter, the illumination device according to the second embodiment will be described in detail with a focus on components. In the description of the second embodiment, the same portions as those of the first embodiment are referred to the first embodiment, and the duplicate description is omitted.

  FIG. 8 is a perspective view of the light source unit 130 of the lighting apparatus according to the second embodiment.

As shown in FIG. 8, the light source unit 130 of the lighting apparatus according to the second embodiment extends along the length direction of the reflector, and has a main body 132 having a first outer surface and a second outer surface, and the first outer surface. And second
A light emitting groove 133 formed on the outer surface, and a light emitting diode 131 mounted in the light emitting groove 133.
The first connection terminal 136 and the second connection terminal 137 are formed at both ends of the main body 132.

The light emitting grooves 133 may be partially formed only at positions where the light emitting diodes 131 are mounted on both side surfaces of the main body 132. That is, a plurality of light emitting grooves 133 may be spaced apart from the main body 132. At this time, the upper surface of the light emitting groove 133 may have a circular shape as illustrated, or may have various shapes such as an ellipse and a polygon when viewed from above.

A plurality of the light emitting diodes 131 may be mounted in the light emitting groove 133 in an array form.
<Third embodiment>
Hereinafter, the illumination device according to the third embodiment will be described in detail focusing on the components. In the description of the third embodiment, the same portions as those in the first embodiment are referred to the first embodiment, and duplicate descriptions are omitted.

  FIG. 9 is a perspective view of a lighting device 200 according to the third embodiment.

As shown in FIG. 9, the lighting device 200 includes a light source unit 230, a reflector 220, and a support unit 21.
Contains zero.

The support part 210 may have a rod shape, supports the reflector 220 and the light source part 230, and transmits power to the light source part 230. The support portion 210 is the reflector 22 such as a ceiling.
The external power supply is extended from the external support member on 0, and receives power from an external power supply, for example, a power supply unit (PSU), installed on the external support member.

One end of the support unit 210 is connected to an external power source, and the other end is connected to the upper surface of the light source unit 230 through the reflector 220. For example, the other end of the support part 210 is connected to the light source part 23.
It can be bonded to the upper surface of 0 by an adhesive or by being fastened by a screw or the like.

A wiring may be formed in the support unit 210 so that a current can flow, so that the support unit 210 can transmit power to the light source unit 230.

A connection terminal (not shown) is connected to the support unit 210 on the upper surface of the light source unit 230.
Can be formed. The light source unit 230 is connected to the support unit 21 through the connection terminal (not shown).
Power can be received from zero.

The reflector 220 may be penetrated by the support part 210, and the support part 21.
It can be supported and fixed by zero. For example, the support part 210 may be firmly coupled to the support part 210 with an adhesive or the like while penetrating the reflector 220.

Alternatively, the reflector 220 may be connected to and supported by a separate support member, but the present invention is not limited to this.

Meanwhile, although two support portions 210 are illustrated, one or more support portions 210 may be formed.
Although the form of the support part 210 can be variously changed, the present invention is not limited to this.
<Fourth embodiment>
Hereinafter, the illumination device according to the fourth embodiment will be described in detail with a focus on components. In the description of the fourth embodiment, the same parts as those of the third embodiment and the first embodiment are referred to by referring to the third embodiment and the first embodiment, and the duplicate description is omitted.

  FIG. 10 is a perspective view of a lighting device 200A according to the fourth embodiment.

As shown in FIG. 10, the lighting device 200 </ b> A includes a light source unit 230, a reflector 220, and a support unit 210.

The reflector 220 may be in the shape of a housing having an opening, and the reflector 22
A socket part 241 that transmits power to the light source part 230 and supports the light source part 230 may be formed on the inner surface 222 of the zero.

Since the connection relationship between the socket portion 241 and the connection terminal of the light source portion 230 and the operation thereof are the same as those described in the first embodiment, detailed description thereof is omitted.

The support part 210 may have a rod shape, and supports the reflector 220 and the light source part 230. The support unit 210 may be extended from an external support member on the reflector 220 such as a ceiling. The reflector 220 receives power from an external power source installed on the external support member, for example, a power supply device. To the socket portion 241.

One end of the support part 210 may be connected to the external power source, and the other end may be connected to the upper surface of the light source part 230 through the reflector 220. For example, the other end of the support unit 210 may be connected to the upper surface of the light source unit 230 by an adhesive or the like, or may be fastened by a screw or the like.

A wiring may be formed in the support part 210 so that a current can flow, so that the support part 210 can transmit power to the socket part 241 of the reflector 220.

The reflector 220 may be penetrated by the support part 210, and the support part 210.
Can be supported and fixed by. For example, the support part 210 may be firmly coupled to the reflector 220 with an adhesive or the like while penetrating the reflector 220.

Alternatively, the reflector 220 may be connected to and supported by a separate support member, but the present invention is not limited to this.

Meanwhile, although two support portions 210 are illustrated, one or more support portions 210 may be formed.
Although the form of the support part 210 can be variously changed, the present invention is not limited to this.
<Fifth embodiment>
Hereinafter, the illumination device according to the fifth embodiment will be described in detail with a focus on components. In the description of the fifth embodiment, the same portions as those of the first embodiment are referred to the first embodiment, and duplicate descriptions are omitted.

  FIG. 11 is a perspective view of a lighting apparatus 300 according to the fifth embodiment.

As shown in FIG. 11, the illumination device 300 includes a light source unit 330, a reflector 320, and a support unit 3.
10 is included.

The support part 310 may have a rod shape, and the reflector 320 and the light source part 330.
Are coupled to support the light source unit 330 and transmit power to the light source unit 330. The support unit 310 is extended from an external support member below the light source unit 330 such as a floor surface, and receives power from an external power source installed on the external support member, for example, a power supply device.

One end of the support part 310 is connected to an external power source, and the other end is connected to a part of the reflective surface of the reflector 320. At this time, the other end of the support part 310 may be bonded to the reflector 320 by an adhesive or the like, or may be fastened and connected by a screw or the like.
0 may pass through the light source unit 330 and be connected to the reflector 320.

The support unit 310 may be firmly coupled and coupled to the light source unit 330 while penetrating the light source unit 330, and the light source unit may be connected to the light source unit 330 by wiring formed to allow current to flow in the support unit 310. Power can be supplied to 330.

Meanwhile, although two support portions 310 are illustrated, one or more support portions 310 may be formed.
Although the form of the support part 310 can be variously changed, the present invention is not limited to this.
<Sixth embodiment>
Hereinafter, the illumination device according to the sixth embodiment will be described in detail with a focus on components. In the description of the sixth embodiment, the same parts as those of the fifth and first embodiments are referred to by referring to the fifth and first embodiments, and duplicate descriptions are omitted.

  FIG. 12 is a perspective view of a lighting apparatus 300A according to the sixth embodiment.

As shown in FIG. 12, the illumination device 300A includes a light source unit 330, a reflector 320, and a support unit.

  The support part may include a first support part 310 and a second support part 315.

The first support part 310 includes a coupling part 312 coupled to the lower surface of the light source part, and a bar part 311 extending from an external support member under the light source part to provide power to the light source part.

  The second support part 315 extends from the upper surface of the light source part and supports the reflector.

  FIG. 13 is a view illustrating a coupling relationship between the light source unit 330 and the first support unit 310.

As shown in FIGS. 12 and 13, the rod portion 311 of the first support portion 310 has a rod shape, and the coupling portion 312 has a shape corresponding to the unevenness of the lower surface of the light source portion 330. The light source unit 330 may be firmly coupled, but the present invention is not limited to this.

  The coupling part 312 of the first support part 310 can transmit power to the light source part 330.

The bar portion 311 of the first support unit 310 extends from an external support member below the light source unit 330 such as a floor surface, and receives power from an external power source, for example, a power supply device, installed on the external support member. It can be transmitted to the light source unit 330. At this time, the power can be transmitted to the light source unit 330 through a wiring formed so that a current can flow in the first support unit 310.

The second support part 315 extends from the upper surface of the light source part 330 and can support and fix the reflector 320.

Meanwhile, although two support portions are illustrated, one or a plurality of support portions may be formed, and the form of the support portion can be variously changed, but the present invention is not limited thereto.
<Seventh embodiment>
Hereinafter, the illumination device according to the seventh embodiment will be described in detail with a focus on components. In the description of the seventh embodiment, the same parts as those of the fifth embodiment and the first embodiment will be referred to, and the overlapping description will be omitted.

  FIG. 14 is a perspective view of an illumination device 300B according to the seventh embodiment.

As shown in FIG. 14, the illumination device 300B includes a light source unit 330, a reflector 320, and a support unit.

  The support part may include a first support part 310 and a second support part 315.

The first support part 310 includes a coupling part 312 coupled to the lower surface of the light source part, and a bar part 311 extending from an external support member under the light source part to provide power to the light source part.

  The second support part 315 extends from the upper surface of the light source part and supports the reflector.

The reflector 320 may have the shape of a housing having an opening, and the reflector 32
A socket part 341 that transmits power to the light source part 330 and supports the light source part 330 may be formed on the inner surface 322 of the zero.

Since the connection relationship between the socket part 341 and the connection terminal of the light source part 330 and the operation thereof are the same as those described in the first embodiment, detailed description thereof is omitted.

As shown in FIGS. 13 and 14, the first support part 310 has a bar part 311 having a bar shape and a coupling part 312 having a shape corresponding to the unevenness of the lower surface of the light source part 330 and coupled to the light source part 330. Can be included.

The coupling part 312 of the first support part 310 supports and fixes the light source part 330 and can transmit power to the light source part 330.

The bar portion 311 of the first support unit 310 extends from an external support member below the light source unit 330 such as a floor surface, and receives power from an external power source, for example, a power supply device, installed on the external support member. It can be transmitted to the light source unit 330. At this time, the power can be transmitted to the light source unit 330 through a wiring formed so that a current can flow in the first support unit 310.

The second support part 315 extends from the upper surface of the light source part 330 and can support and fix the reflector 320.

Meanwhile, although two support portions are illustrated, one or a plurality of support portions may be formed, and the form of the support portion can be variously changed, but the present invention is not limited thereto.

Claims (15)

A reflector including a reflective surface; and a light source unit that is disposed under the reflector and emits light toward the reflector.
The light source unit is
A main body that is installed along a length direction of the reflector and includes a first outer surface and a second outer surface that are inclined toward the reflecting surface;
A plurality of first light emitting elements installed on the first outer surface;
A plurality of second light emitting elements installed on the second outer surface,
The plurality of first and second light emitting elements emit light toward the reflector,
A first light emitting groove and a second light emitting groove are formed on each of the first outer surface and the second outer surface,
The plurality of first light emitting elements are installed in the first light emitting groove, and the plurality of second light emitting elements are installed in the second light emitting groove,
The first and second light emitting grooves are formed to extend along a length direction of the main body,
The reflector includes two parabolic reflecting surfaces, and the two parabolic reflecting surfaces are connected to each other to form a boundary portion;
The main body of the light source unit is installed at a position corresponding to the boundary part,
The reflector has a shape of a housing, and has inner side surfaces at both ends of the two parabolic reflecting surfaces,
A first connection terminal and a second connection terminal are formed at both ends of the light source unit,
A first socket part and a second socket part that are coupled to the first connection terminal and the second connection terminal to support and fix the light source part and supply power to the light source part, respectively, on the inner surface of the reflector A lighting device in which is formed.   The first socket part and the first connection terminal are combined to form a first connection part, the second socket part and the second connection terminal are combined to form a second connection part, and the first connection part and The lighting device according to claim 1, wherein at least one of the second coupling units includes a control unit that receives a driving signal and controls and drives the light source unit.   The lighting device according to claim 1, wherein the main body includes a substantially triangular cross section. Unevenness is formed on the lower surface of the main body of the light source unit,
4. The lighting device according to claim 1, wherein a lower surface of the main body connects the first outer surface and the second outer surface. 5.   5. The first and second light emitting grooves according to claim 1, wherein the first and second light emitting grooves include a plurality of grooves spaced apart from the first outer surface and the second outer surface of the main body. Lighting device.   The lighting device according to claim 1, wherein a lens is disposed in the first and second light emitting grooves or a resin member is filled.   The lighting device according to any one of claims 1 to 6, wherein an upper side surface of the reflector has a box shape.   The lighting device according to any one of claims 1 to 7, wherein an upper side surface of the reflector is coupled to the two parabolic reflecting surfaces.   The first connection terminal according to any one of claims 1 to 8, wherein the first connection terminal has a shape different from that of the second connection terminal, and the first socket portion has a shape different from that of the second socket portion. Lighting device.   9. The first connection terminal according to claim 1, wherein the first connection terminal has the same shape as the second connection terminal, and the first socket part has the same shape as the second socket part. 10. Lighting device.   The lighting device according to claim 1, further comprising a support unit that supports the reflector and the light source unit.   The support part is extended from an external support member on the reflector, and one end is supplied with power from an external power source of the external support member, and the other end passes through the reflector and is electrically connected to the upper surface of the light source part. The lighting device according to claim 11, which is connected.   The support part is extended from an external support member under the light source part, one end is supplied with power from an external power source of the external support member, and the other end is connected to the reflection surface of the reflector through the light source part. The lighting device according to claim 11. The support part includes a first support part and a second support part,
The first support unit includes a coupling unit coupled to a lower surface of the light source unit, and a bar unit extending from an external support member under the light source unit to provide power to the light source unit.
The lighting device according to claim 11, wherein the second support part is extended from an upper surface of the light source part to support the reflector. Unevenness is formed on the lower surface of the main body of the light source unit,
The lighting device according to claim 14, wherein the coupling portion of the first support portion is formed to correspond to the unevenness and is coupled to the lower surface of the light source portion.

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