CN202813127U - Illumination device - Google Patents

Abstract

The utility model provides an illuminating device, which can avoid the phenomenon that the central part becomes a dark part, and can make the brightness of the light-emitting surface uniform, so as to improve the sense of brightness. The utility model relates to a lighting device, which comprises: a mounting member (1), which has a mounting part (4) in a substantially central part; and a light source part body (2) equipped with a guide The light plate (6) and the light emitting element (51), and the light source part body (2) is mounted on the front surface side of the mounting member (1) in a switchable manner, and the light guide plate (6) has a light incident The end surface (61) is arranged in such a way as to cover the front surface side of the mounting member (1) including the mounting part (4), and the light emitting element (51) enters the light guide plate with outgoing light (6) The above-mentioned light incident end surface (61) is arranged so that it may.

Description

lighting device

technical field

Embodiments of the present invention relate to a lighting device that uses a light emitting element such as a light emitting diode (hereinafter referred to as LED (Light Emitting Diode)) as a light source, and uses a light guide plate for illumination.

Background technique

Recently, along with higher output and higher efficiency of LEDs, lighting devices that use LEDs as light sources, are used indoors or outdoors, and can be expected to have longer lifetimes have been developed. This lighting device is obtained by mounting a plurality of LEDs on a substrate to obtain a predetermined brightness, and is used, for example, as a ceiling light for ordinary houses mounted on a ceiling surface or the like.

However, the light emitted from the LED is highly directional and prone to glare and uneven brightness. Therefore, in order to suppress glare and improve the uniformity of the light-emitting surface, new lighting devices that perform lighting using a light guide plate have been developed.

In the case of such a lighting device, for example, an adapter is electrically and mechanically connected to a ceiling lamp holder body provided on a ceiling surface, and the lighting device body is attached to the adapter. Therefore, an opening corresponding to the adapter is formed in the central part of the light guide plate so that the adapter and the like can be operated when attaching or detaching the lighting device main body.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2011-171146

Patent Document 2: International Publication No. 2011/081246

However, in the lighting device as described above, the central opening formed corresponding to the adapter is a part where light is not guided, and this part becomes dark, so that the central part becomes a dark part.

Utility model content

The utility model is made in view of the above problems, and its purpose is to provide a lighting device that can avoid the phenomenon that the central part becomes a dark part, and can make the brightness of the light-emitting surface uniform, so as to improve the sense of brightness.

A lighting device according to an embodiment of the present invention is provided with a mounting member having a mounting portion for mounting on a device mounting surface at a substantially central portion. In addition, the lighting device includes: a light source unit body that is openably and closably attached to the front surface side of the mounting member. The light source unit body has a light guide plate and a light emitting element. The mounting portion is disposed so as to cover the front surface side of the mounting member, and the light emitting element is disposed so that emitted light enters the light incident end surface of the light guide plate.

The effect of utility model

According to the embodiment of the present invention, it is possible to provide an illuminating device capable of uniformizing the brightness of the light-emitting surface to improve the sense of brightness.

Description of drawings

FIG. 1 is a perspective view showing a lighting device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view illustrating a state in which the lighting device according to the embodiment of the present invention is attached to a ceiling surface.

Fig. 3 is a cross-sectional view showing the mounting member separated from the light source unit body in the state of Fig. 2 .

4 is an exploded perspective view showing a light source unit main body in the lighting device according to the embodiment of the present invention.

FIG. 5 is an enlarged view showing part A in FIG. 2 .

6 is a cross-sectional view showing a state in which an attachment member is attached, showing the procedure of attachment to the ceiling surface in the lighting device according to the embodiment of the present invention.

7 is a cross-sectional view showing the installation procedure of the lighting device according to the embodiment of the present invention on the ceiling surface, and showing the initial process of attaching the light source unit main body to the attachment member.

Fig. 8 is also a cross-sectional view showing the installation procedure of the lighting device on the ceiling surface, and showing the process of attaching the light source unit main body to the attachment member.

Explanation of symbols:

1: Install components

2: The main body of the light source

3: lighting device

4: Mounting part (adapter guide part)

5: Light source department

6: Light guide plate

7: Support chassis

8: Body frame

9: Auxiliary parts unit

11: opening

12, 13: Snap to accept accessories

31: Circuit board

31a: Resin fixing piece

32: circuit parts

41: Snap-in port

51: Light emitting element (LED)

52: Substrate

53: Mounting member (mounting plate)

61: Light incident end face

71: Concave

72: Mounting sheet

81: side wall

82: bottom wall

83: Raised

85, 86: Snap fittings

85a: Engagement hole

86a, A1: engagement part

A: Adapter

C: Device installation surface (ceiling surface)

Cb: wiring device (main body of ceiling lamp holder)

Cn1, Cn3: Power receiving connector

Cn2: Wiring connection member (connector for power supply)

Cn4: Power connector

L1, L2, L3: wires

L4: power cord

P: Pad

Rc: infrared remote control transmitter

Detailed ways

The lighting device according to this embodiment is a form in which it is attached to a ceiling lamp holder main body as a wiring fixture installed on the device, and uses a light guide plate to perform, for example, indoor lighting. Mounting surface.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8 . In addition, in each figure, the same code|symbol is attached|subjected to the same part, and overlapping description is abbreviate|omitted.

As shown in FIGS. 1 to 5 , the lighting device includes a mounting member 1 and a light source unit main body 2 . The attachment member 1 is provided with an adapter guide as a lighting device 3 and an attachment portion 4 .

Moreover, the light source part body 2 is equipped with: a light source part 5, a light guide plate 6, a support chassis (support chassis) 7, a main body frame 8, and an auxiliary part unit (unit) 9, and the auxiliary part unit 9 is provided with a plurality of electrical auxiliary parts .

Furthermore, the lighting device includes: an adapter A electrically and mechanically connected to the ceiling lamp holder main body Cb provided as a The ceiling surface C of the installation surface of the device. Such an illuminating device has a substantially square appearance, and uses the front side as a light irradiation surface and the back side as an attachment surface to the ceiling surface C. As shown in FIG. These constituent elements will be described in order below.

The mounting member 1 is a device body, specifically, a chassis, which is formed in a substantially square shape from a flat metal material such as cold-rolled steel plate, and has a front side open and a rear side convex. A circular opening 11 is formed in a substantially central portion, and this opening 11 arranges a later-described mounting portion 4 facing the ceiling lamp holder main body Cb and the adapter A provided on the ceiling surface C. As shown in FIG.

Moreover, at two positions of the open edge portion on the opposite side (left side in the drawing) of the mounting member 1, there are fastening devices such as screws that are bent into a piano key shape and protrude outward. Snap accept fittings 12 . On the other hand, on the other side (in the drawing, the right side), two positions of the open edge are mounted in the same manner by fixing means such as screws in such a manner as to face the engagement receiving fitting 12. There are: snap-fit receiving fittings 13 protruding toward the rear side.

Furthermore, a pad (packing) P made of sponge (sponge) is attached to the back side of the attachment member 1 .

The lighting device 3 is mounted on the mounting member 1 , and the lighting device 3 includes a circuit board 31 and circuit components 32 mounted on the circuit board 31 . The circuit board 31 is made of an insulating material such as glassepoxy resin and is formed in a plate shape. On the surface side, an integrated circuit (Integrated Circuit, IC) for control, a capacitor (condenser), a winding (winding) component, and a resistor are mounted. Circuit parts 32 such as components. Moreover, in order to connect to the power receiving connector (connector) Cn1 connected to the power supply side (adapter A side) and the load side, that is, the light source unit 5 side, a power supply connector Cn2 is provided, and the power supply connector Cn2 is connected to On the circuit board 31, it is led out through the wire L1 which is a member for wiring connection. Further, on the back side of the circuit board 31 , components having a relatively small height dimension, such as switching elements and surface mount components, are mounted.

As shown in the figure, the circuit board 31 is mounted on the inner side of the mounting member 1 and around the opening 11 with the front side as the lower side via a resin-made fixture 31 a. The resin-made fixture 31 a is arranged so that its tip protrudes from the back side of the mounting member 1 to the front side, and the resin-made fixture 31 a is press-fitted into a mounting hole formed in the circuit board 31 .

In addition, in the mounted state of the circuit board 31 , the power receiving connector Cn1 is located on the opening 11 side, that is, the inner peripheral side, and the power feeding connector Cn2 is located on the outer peripheral side.

The lighting device 3 described above is electrically connected to the adapter A side to the power receiving connector Cn1 as described later, and is connected to a commercial AC power supply via the adapter A. Therefore, the lighting device 3 receives the AC power supply, generates a DC output, and supplies the DC output to the light source unit 5 from the lead wire L1 through the power supply connector Cn2.

The attachment part 4 is an adapter guide part, a member through which the adapter A is inserted and engaged, and a member for attaching the lighting fixture to the ceiling surface C. As shown in FIG. The adapter guide portion is formed in a substantially quadrangular shape with a slight thickness dimension, and a circular engaging opening 41 through which the adapter A is inserted and engaged is provided at the central portion. The adapter guide portion is arranged corresponding to the opening 11 formed in the substantially central portion of the attachment member 1 .

In addition, the attachment part 4 does not necessarily have to be what is called an adapter guide part etc. FIG. For example, it may be an opening formed in a chassis or the like, and refers to a member or a portion that faces the ceiling socket main body Cb as a wiring fixture and engages the adapter A. Mainly refers to: the member or part for installing the lighting device on the ceiling surface C.

Next, the light source unit main body 2 includes a light source unit 5 , a light guide plate 6 , a support chassis 7 , a main body frame 8 , and an auxiliary component unit 9 .

As shown in FIGS. 2 to 5 , the light source unit 5 includes a substrate 52 on which the light emitting element 51 is mounted, and a mounting plate 53 as a mounting member on which the substrate 52 is mounted.

As typically shown in FIG. 4, the substrate 52 is formed in a horizontally long rectangular shape, a flat plate including glass epoxy resin as an insulating material, and a wiring pattern (pattern) formed of copper foil is applied on the surface side, and, A resist (resist) layer is laminated|stacked suitably on a wiring pattern, and it forms. In addition, when the material of the substrate 52 is an insulating material, a ceramics material or a synthetic resin material can be applied. Furthermore, when it is made of metal, it is also possible to apply a metal base substrate in which an insulating substrate is laminated on one side of a base substrate having good thermal conductivity and excellent heat dissipation such as aluminum. layer.

The light emitting element 51 is an LED, and is a surface mount type LED package. The LED packages are arranged linearly along the longitudinal direction of the substrate 52, and a plurality of LED packages are mounted and arranged. The LED package generally includes: an LED chip (chip), arranged in a cavity (cavity) formed by ceramics or synthetic resin; Photoresin seals the LED chip.

The LED chip is an LED chip that emits blue light. A phosphor is mixed into the translucent resin, and a yellow phosphor is used in order to emit white light. The yellow phosphor emits light of a yellowish color having a complementary color relationship with blue light.

In addition, as for the LED, an LED chip can be directly mounted on the substrate 52 , and a cannonball-shaped LED can also be mounted, and the mounting method or form is not particularly limited.

The mounting plate 53 is made of a material with good heat conduction, such as aluminum or galvanized steel, and is horizontally long and its side is formed in a substantially C-shaped channel shape. On the inner side wall of the mounting plate 53 , the substrate 52 is attached by screwing or the like so that the back side thereof is in close contact with each other. Therefore, the light source unit 5 is unitized by mounting the substrate 52 on the mounting plate 53 .

In the present embodiment, mainly as shown in FIG. 4 , two such unitized light source units 5 are used, and are arranged corresponding to opposite sides of the light guide plate 6 . Furthermore, the unitized light source parts 5 are electrically connected to each other by a wire L2, and further, a power receiving connector Cn3 connected to the substrate 52 and led out by a wire L3 is provided from one light source part 5 .

In addition, the unitized light source unit 5 may be arranged so as to correspond to each side of the light guide plate 6, and may be appropriately selected according to the design.

The light guide plate 6 is made of a material with a high transmittance such as acryl resin, and is formed in a rectangular flat plate shape. On the entire surface of the back side, a dot pattern is formed by printing, and the dot pattern includes light diffusion. A number of white reflective dots (dot), and a reflective sheet (sheet). Furthermore, a diffusion sheet is provided on the entire front surface side. In addition, the outer peripheral portion of the light guide plate 6 , that is, the opposite two side end surfaces of the side end surfaces of each side of the quadrangular shape are incident as light emitted from the light emitting element 51 and travels in the light guide plate 6 . The end face 61 functions.

On the light incident end surface 61 of such a light guide plate 6 , the substrate 52 of the light source unit 5 is disposed. That is, as mainly shown in FIG. 5 , a plurality of light emitting elements 51 are arranged in a linear array on the substrate 52 so that light is incident on the light incident end surface 61 of the light guide plate 6 . Furthermore, the light guide plate 6 covers the front surface side of the mounting member 1 including the mounting portion 4 .

The support chassis 7 also serves as a heat dissipation member and functions as a heat dissipation member. The support chassis 7 is made of a metal material such as aluminum having thermal conductivity, has a relatively large area and is formed in a substantially square shape, and has a square dish-shaped recess 71 on the back side, and each of the recesses 71 The side is formed with a mounting piece 72 that is bent outward in a stepped shape and extends. Moreover, the front surface side of the recessed part 71 is comprised as the support surface which supports the light guide plate 6. As shown in FIG.

The main body frame 8 is made of synthetic resin such as acrylonitrile-butadiene-styrene (Acrylonitrile Butadiene Styrene, ABS) resin or polycarbonate (polycarbonate), and is formed in a substantially square shape and is smaller than that of the light guide plate 6. A large frame shape, as shown in FIG. 5 , the main body frame 8 is provided with: a side wall 81 and a bottom wall 82 having an inclined portion extending obliquely downward from the lower end portion of the side wall 81 toward the inside, Furthermore, it erects obliquely toward the inside. Furthermore, a plurality of bosses (boss) 83 are erected on the bottom wall 82 , and the mounting piece 72 supporting the chassis 7 is screwed to the bosses 83 .

Furthermore, two parts of the edge portion on the opposite side (left side in the drawing) of the main body frame 8 are attached with fixing means such as screws: Snap fittings 85 . On the other hand, engaging fittings 86 are attached to two places of the edge portion on the other side (the right side in the drawing) so as to face the engaging fittings 85 . The engaging fitting 86 is a clamp fitting, is formed in a curved shape and has elasticity, has an engaging portion 86 a on the front end side, and is rotatably supported by the main body frame 8 .

Such engaging fittings 85, 86 are arranged so as to face the fitting receiving fittings 12, 13 provided on the above-mentioned mounting member 1, and are engaged with fitting fittings 12, 13 as described in detail later. 13.

In addition, in this embodiment, these engaging metal fittings 85 and 86 and the engaging receiving metal fittings 12 and 13 constitute an engaging device.

The auxiliary component unit 9 is configured to include a unit substrate and a plurality of electrical auxiliary components mounted on the substrate in a horizontally elongated box-shaped case. The electrical auxiliary parts in this embodiment are: an infrared remote control signal receiving unit, a night light (all night light) or a channel setting switch.

The auxiliary component unit 9 is disposed on the outer peripheral portion of the lighting device, specifically, on the outer peripheral portion of the main body frame 8 . Therefore, the auxiliary component unit 9 is disposed outside the light emitting area of the light guide plate 6 . The auxiliary component unit 9 configured in this way is provided by collecting a plurality of electrical auxiliary components, and is mounted on the main body frame 8 .

As shown in FIGS. 2 and 3 , the adapter A is a portion that is electrically and mechanically connected to the ceiling lamp holder main body Cb provided on the ceiling surface C through a hook provided on the upper surface side, has a substantially cylindrical shape, and A pair of engaging portions A1 are provided on both sides of the peripheral wall so as to always protrude toward the outer peripheral side by built-in springs. The engaging portion A1 is inserted by operating a lever provided on the lower surface side.

And, from this adapter A, an unshown power cord (cord) L4 connected to the lighting device 3 is derived, and a power connector Cn4 is connected to the front end of the power cord L4 . The power supply connector Cn4 is connected to the power receiving connector Cn1 provided in the lighting device 3 .

The infrared remote control transmitter Rc, for example, sends a specific coded infrared remote control control signal in the form of a pulse with a frequency of 38kHz, for example, there are: a full-light lighting button (button), a dimming lighting button, a night light button and a light-off button wait. By operating the infrared remote control transmitter Rc toward the auxiliary component unit 9, that is, the infrared remote control signal receiving part, the light emitting state of the light emitting element 51 in the light source part 5 can be controlled, that is, full-light lighting, dimming lighting, and light-off can be performed. etc. control.

In the illuminating device constructed in this way, as typically shown in FIGS. 2 and 5 , the support chassis 7 functioning as a heat dissipation member is arranged on the back side of the light guide plate 6 and is screwed and attached to the main body. A plurality of protrusions 83 of the frame 8 . In this state, the mounting piece 72 supporting the chassis 7 is brought into surface contact with the upper surface of the mounting plate 53 in the light source unit 5 and is thermally bonded. Therefore, the mounting piece 72 serves as a thermal bonding portion between the light source unit 5 and the support chassis 7 .

Furthermore, as shown in FIG. 5 , the outer peripheral portion on the front side of the light guide plate 6 is supported by the inclined portion of the bottom wall 82 in the main body frame 8 . On the other hand, as described above, the support chassis 7 is disposed on the back side of the light guide plate 6, and the light guide plate 6 is sandwiched by the support chassis 7 and the inclined portion of the bottom wall 82 of the main body frame 8. configuration. In this state, the light incident end surface 61 of the light guide plate 6 is provided facing the light emitting element 51 , and the light emitted from the light emitting element 51 enters the light incident end surface 61 .

Next, an installation procedure for installing the lighting device configured as described above on the ceiling surface C will be described with reference to FIGS. 2 and 3 , and FIGS. 6 to 8 .

First, as shown in FIG. 3 , the ceiling surface C is provided with a ceiling socket main body Cb. Moreover, the adapter A is electrically and mechanically connected to the main body Cb of the ceiling lamp holder.

In this state, the attachment member 1 side is attached to the adapter A as shown in FIG. 6 . Specifically, on the one hand, align the engaging opening 41 of the adapter guide portion of the mounting part 4 in the mounting member 1 with the adapter A, and on the other hand, push the mounting member 1 up from below until the engaging part A1 of the adapter A is secured. It is engaged with the engaging opening 41 of the adapter guide to carry out the installation operation. In this state, the power supply connector Cn4 derived from the adapter A is connected to the power receiving connector Cn1 of the lighting device 3 .

Next, the light source unit main body 2 side is mounted on this mounting member 1 . As shown in FIG. 7 , the key-shaped snap receiving fitting 12 of the mounting member 1 is inserted through the snap hole 85 a of the snap fitting 85 of the main body frame 8 to hook and support the snap fitting 85 . Then, the power supply connector Cn2 derived from the lighting device 3 and the power reception connector Cn3 derived from the light source unit 5 are connected. At this time, as shown in FIG. 6 , the power supply connector Cn2 derived from the lighting device 3 hangs downward due to its own weight, so the connection work between the power supply connector Cn2 and the power reception connector Cn3 derived from the light source unit 5 made easy.

Next, as shown in FIG. 8 , the light source unit main body 2 is rotated around the fitting 85 side as a fulcrum, and the front surface side of the mounting member 1 is covered so as to be blocked. In this state, the engaging fitting 86 supported by the main body frame 8 is rotated, and the engaging portion 86a is elastically engaged with the engaging receiving fitting 13 protruding toward the rear side with a predetermined coupling force. This state is an installation completion state (refer to FIG. 2).

In the installed state of the lighting device, the adapter A is inserted through the opening 11 of the installation member 1, the engaging part A1 of the adapter A is engaged with the engaging opening 41 of the adapter guide part, and the gasket P provided on the back side of the installation member 1 It is elastically deformed and interposed between the back side of the mounting member 1 and the ceiling surface C in a compressed state. Therefore, the illuminating device is firmly and securely engaged with the adapter A, thereby stably maintaining the installed state.

Moreover, when detaching the lighting device, generally speaking, the engagement fitting 86 supported by the main body frame 8 is turned to release the engagement with the engagement receiving fitting 13, the light source part main body 2 is detached from the mounting member 1, and the mounting member 1 The front surface side is open. Then, the operation lever provided on the adapter A is operated to release the engagement of the engagement portion A1 of the adapter A, whereby the attachment member 1 can be detached.

In this way, the light source unit main body 2 is openably and closably attached to the front side of the mounting member 1 in a detachable manner.

In the mounted state of the lighting device as described above, the lighting device 3 is arranged on the side of the mounting member 1 . Therefore, the weight of the light source unit main body 2 side coupled to the mounting member 1 can be reduced, and the load applied to the engaging fittings 85, 86 and the engaging receiving fittings 12, 13 constituting the engaging device can be reduced, thereby improving the strength. favorable.

Furthermore, since the power receiving connector Cn1 provided in the lighting device 3 is located on the inner peripheral side, and the power supply connector Cn2 is located on the outer peripheral side, the power receiving connector Cn1 is located close to the adapter A, and the power supply connector Cn2 is located close to the adapter A. The light source part 5.

Therefore, each distance is shortened, the lead wire L1 or L3 which is a member for wiring connection can be shortened, and connection work becomes easy. Moreover, the members for wiring connection such as these connectors are arranged on the sides of the engaging fitting 85 and the engaging receiving fitting 12 which serve as the rotation fulcrum of the light source part main body 2, thereby, the light source realized by the engaging device In relation to the rotational movement of the main body 2, the lead wire L1 or L3 can also be shortened (see FIG. 7 ).

In addition, only one of the lead wire L1 and the lead wire L3 may be provided, and only a connector may be provided for the other one. For example, the lead wire L3 may not be provided, and the power receiving connector Cn3 may be directly mounted on the substrate 52 of the light source unit 5 .

In the installed state of the lighting device, for example, when the infrared remote control transmitter Rc is operated to supply power to the lighting device 3 , the light emitting elements 51 are energized through the substrate 52 , and the lighting of each light emitting element 51 is controlled by the lighting device 3 . The light emitted from the light-emitting element 51 enters the light-incident end surface 61 of the light guide plate 6, and the incident light is totally reflected in the light guide plate 6, and spreads to the entire light guide plate 6, and is formed on the back side by the reflection points. The dot pattern or reflective sheet reflects and diffuses, thereby radiating homogenized light from the front surface side.

At this time, the light guide plate 6 includes the mounting portion 4 and covers the front surface side of the mounting member 1, so that no dark portion occurs in the center of the light guide plate 6, that is, the brightness of the light emitting surface can be made uniform. A good light distribution state can be realized, and the sense of brightness can be improved.

Furthermore, the heat generated from each light emitting element 51 is conducted from the back side of the substrate 52 to the mounting plate 53 and then to the support chassis 7 , thereby utilizing the large area of the support chassis 7 to dissipate heat efficiently.

As described above, according to the present embodiment, it is possible to provide a lighting device which can uniformize the brightness of the light-emitting surface without generating a dark portion in the central portion of the light guide plate 6 and improve the sense of brightness.

In addition, this invention is not limited to the structure of the said embodiment, Various deformation|transformation is possible in the range which does not deviate from the summary of the invention. In addition, the above-mentioned embodiment is presented as an example, and it is not intended to limit the scope of the invention.

For example, in the above-mentioned embodiment, the case where the lighting device is arranged on the mounting member side has been described, but the lighting device may be arranged on the light source unit main body side.

Furthermore, a hinge structure may be applied as the engaging means, and the light source unit main body may be attached to the front surface side of the mounting member so as to be openable and closable. Furthermore, for example, the light source unit main body may be detachable from the mounting member by providing clip fittings on opposite sides of the main body frame. At this time, the front surface side of the attachment member can also be opened and closed by the light source unit main body. In this way, the engaging device can be applied to various structures, and is not particularly limited.

In addition, in the above-mentioned embodiment, the case where the light guide plate formed in a quadrangular shape is used and the light emitting surface is formed in a substantially quadrangular shape has been described. However, for example, the light guide plate may be formed in a hexagonal or octagonal shape. The light-emitting elements are arranged corresponding to their sides, the main body frame is formed in a circular shape, and the light-emitting surface of the light guide plate is circularly exposed to form a circular light-emitting surface.

Claims (3)

1. a lighting device is characterized in that, comprising:

Installation component has at central portion: the installation portion that is used for being installed on the device installed surface; And

The light source portion body, possess: LGP and light-emitting component, described light source portion body is for can openedly and closedly being installed on the front surface side of described installation component, described LGP has light-incident end at peripheral part, and with described installation portion is included in interior and cover described installation component the front surface side mode and set, described light-emitting component be incident to emergent light described LGP described light-incident end mode and set.

2. lighting device according to claim 1 is characterized in that, in described installation component side, is equipped with: to described light-emitting component light a lamp control ignition device.

3. lighting device according to claim 2 is characterized in that, the outer circumferential side at described ignition device is provided with: the distribution that is connected with described light-emitting component connects uses member.

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