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lighting device

A technology for lighting devices and light guides, applied in lighting devices, light guides for lighting devices, lighting devices for small compartments, etc., can solve problems such as the inability of light guides to emit light, and achieve the effect of easy assembly

Active Publication Date: 2019-04-02
NIFCO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when light is simply incident on the circumferential light guide from one location to make the entire light guide emit light, the incident portion side becomes brighter, and the entire light guide cannot be uniformly illuminated.

Method used

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Examples

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Embodiment Construction

[0034] Below, based on Figure 1 to Figure 16 Typical embodiments of the present invention will be described. The lighting device of this embodiment has a circumferential light guide body 1 , and the light guide body 1 forms a ring-shaped light-emitting portion on a part of various articles.

[0035] In the illustrated example, an example in which this illuminating device is mounted on a cup holder 4 used as a cup holder for an interior product such as an automobile is shown. In the illustrated example, the disc-shaped cup holder 4 has a circular hole 40 for receiving and holding a beverage container from the bottom side thereof. The lighting device makes the edge of the hole 40 of the cup holder 4 emit light over its entire circumference, thereby improving the design of the cup holder, and even at night, the beverage container can be inserted into the cup holder from the bottom side without error. 4 of the aforementioned holes 40 .

[0036] This illuminating device include...

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PUM

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Abstract

The present invention provides a lighting device. The illuminating device is configured to have a light guide body having a circumferential shape having a light incident portion at one portion, propagating incident light to emit light as a whole, and the light guide body being arranged between a light source opposite to the light source with respect to the incident portion. A diffuser cover that diffuses light generated from the above-mentioned light guide. The diffuser cover includes a plate-shaped base that covers the incident portion side of the light guide, and an annular portion that integrates an outer peripheral portion with the plate-shaped base to cover the rest of the light guide.

Description

technical field [0001] The present invention relates to an improvement of an illuminating device having a circumferential light guide body and forming a ring-shaped light-emitting portion on a part of various articles by the light guide body. Background technique [0002] There is a device disclosed in Patent Document 1 as an illumination device that generates ring-shaped light from incident light from a point light source. [0003] However, when light is simply incident on the circumferential light guide from one portion to make the entire light guide emit light, the incident portion side becomes brighter, and the entire light guide cannot be uniformly illuminated. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2003-297108 Contents of the invention [0007] The problem to be solved by the invention [0008] The main problem to be solved by the present invention is that, in an illuminating device in whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/20F21V3/00F21V3/02F21V8/00F21Y115/10
CPCG02B6/001G02B6/0018B60Q3/64B60Q3/229B60Q3/20B60N3/10F21K2/00G02B6/0001F21V2200/00
Inventor 小山幸子上野妙子
Owner NIFCO INC