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Lighting apparatus

A technology for lighting equipment and light source units, applied in lighting and heating equipment, lighting devices, components of lighting devices, etc., can solve the problem of inability to assemble lighting equipment with a large light-emitting area, inability to arrange light-emitting panels, and damage the advantages of planar light-emitting panels And other issues

Inactive Publication Date: 2013-11-20
PANASONIC INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the light-emitting device described in Document 1, since the circuit board is arranged next to the light-emitting board, the light-emitting board cannot be arranged at the position of the circuit board, thereby causing a non-light-emitting area (a region that does not emit light)
For example, in the case of arranging a plurality of modules side by side, since the distance between the light emitting areas of adjacent modules becomes larger, it is impossible to assemble a lighting device with a large light emitting area.
On the other hand, there is a concern that in the case of mounting the circuit board on the non-light-emitting surface side of the light-emitting panel, the advantages of the planar light-emitting panel will be impaired because the thickness of the module and the lighting equipment using the module will increase.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0039] refer to Figure 1 to Figure 6 A lighting device according to an embodiment of the present invention will be described. Such as Figure 1 to Figure 6 As shown in , the lighting device 1 of this embodiment includes: a light source unit 2 having a box 20 for accommodating a planar light-emitting panel 5 using an organic EL element; The housing 30 of the lit (printed) circuit board 8 . exist figure 1 In the example of the present invention, the case 30 is a board frame, and the circuit board 8 is held in the board frame 30 . The (printed) wiring board 6 is housed in the case 20 of the light source unit 2 together with the light emitting board 5 . For the light source unit 2, a plurality (2) of claws 21 adapted to be engaged with the installation unit 3 are provided on the surface opposite to the installation unit 3 (its back side), and a plurality of (two) claws 21 for connecting the wiring board 6 to the installation unit 3 are provided. A plurality (two) of terminal...

no. 2 example

[0060] In the lighting device described in Document 2, the concave portion overlaps a part of the light emitting surface of the light emitting panel, which causes a non-light emitting region (a region that does not emit light) on the light emitting surface. As a result, for example, in the case of arranging the light-emitting panels side by side, since no light is emitted in the concave portion, a lighting device having a large light-emitting surface cannot be assembled. Furthermore, in the lighting fixture described in Document 3, a part of the housing overlaps a part of the light emitting surface of the light emitting panel, which also causes a non-light emitting area. In such a lighting device, the facilitation of installation of the light emitting panel causes unstable holding of the light emitting panel, and holding the light emitting panel firmly may make installation and detachment difficult.

[0061] The second embodiment is a lighting device configured to be able to e...

no. 3 example

[0088] refer to Figure 13 A and 13B illustrate a lighting device according to a third embodiment of the present invention. In the lighting apparatus 1 of the present embodiment, each engaging portion 21a of the light source unit 2 includes a U-shaped hook piece, and each engaged portion 31a of the mounting unit 3 constitutes a shaft member. That is, the U-shaped engaging portion 21a is hung on the shaft-shaped engaged portion 31a, whereby the light source unit 2 can freely rotate relative to the mounting unit 3 around the rotation axis of the engaged portion 31a. In this example, the engaging portions 21 a are arranged at both ends of one side of the light source unit 2 , and the engaged portions 31 a are arranged at both ends of one side of the mounting unit 3 . The holding portion 21b is arranged on the opposite side to the side on which the engagement portion 21a is arranged, and the held portion 31b is arranged on the opposite side to the side on which the engaged portio...

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PUM

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Abstract

A lighting apparatus includes: a light source unit that has a case storing therein a light-emitting panel and a wiring board mounted on a non-light emitting face thereof; and an attachment unit that has a housing storing therein a circuit board and configured to be detachably attached to the light source unit. The case has a wiring board storage. The housing has a circuit board storage. The case and the housing are arranged such that a whole of the wiring board storage and a whole of the circuit board storage are arranged at different positions in a direction perpendicular to an attachment direction of the light source unit and the attachment unit.

Description

technical field [0001] The invention relates to a lighting device comprising an electroluminescence (EL) element as a light source. Background technique [0002] An electroluminescence (EL) element is constituted by mounting a light emitting portion on a transparent substrate. A light emitting section is constituted by disposing a light emitting layer between a positive electrode and a negative electrode. The EL element emits light by excitons generated by recombination of electrons and holes injected as carriers into the light emitting layer when a voltage is applied between the electrodes. [0003] EL elements are generally classified into organic EL elements in which a light-emitting layer consists of an organic compound and inorganic EL elements in which a light-emitting layer consists of an inorganic compound. In particular, organic EL elements provide high-intensity illumination at low voltage, and various luminescent colors according to the type of organic compound....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V23/00F21V19/00H01L51/50F21Y105/00
CPCF21V23/001F21Y2105/008H01L2251/5361H01L51/5237F21Y2105/00F21Y2115/15H10K50/84H10K59/873H10K50/844
Inventor 河地秀治宫川昇小西洋史棚桥理
Owner PANASONIC INTPROP MANAGEMENT CO LTD
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