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lamps

A lamp, plate-like technology, applied in the direction of instruments, lighting and heating equipment, fixed lighting devices, etc., can solve problems such as damage to the appearance of lamps and lanterns, and achieve the effect of avoiding damage to the appearance

Active Publication Date: 2020-07-31
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detracts from the appearance of the luminaire

Method used

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Examples

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Embodiment Construction

[0060] Embodiments of the present invention will be described below using the drawings.

[0061] figure 1 It is a front view which shows the lamp|ramp 10 which concerns on one Embodiment of this invention. In addition, yes figure 1 The II-II line profile, image 3 yes figure 2 Detailed view of the III-III line section.

[0062] As shown in these figures, the lamp 10 according to the present embodiment is a vehicle lamp, and is configured as a position marker lamp provided at the left front end portion of the vehicle.

[0063] This lamp 10 has a configuration in which a light source 20 and a plate-shaped light guide 30 for guiding light incident from the light source 20 are accommodated in a lamp chamber formed by a lamp body 12 and a transparent translucent cover 14 .

[0064] In addition, as the lamp 10, in these figures, the direction indicated by X is "front" (also "front" as a vehicle), and the direction indicated by Y is "left direction" (also "left direction" as a ...

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Abstract

Provided is a lamp including a plate-shaped light guide that guides light incident from a light source in a desired direction, wherein the front and rear surfaces of the plate-shaped light guide are inclined with respect to a vertical plane including the desired direction. When arranged in a state, it can also avoid damaging the appearance of the lamp in the light source lighting state when viewed from the front. Corresponding to the fact that the plate-shaped light guide (30) is tilted to the rear side with respect to the vertical plane including the desired direction, the plurality of reflective elements (30s) formed on the back surface (30b) of the plate-shaped light guide body (30) are tilted from the plate-shaped light guide body (30b) when viewed from the front of the lamp. The lower end surface (30f) of the light guide (30) faces the upper end surface (30e) in a direction inclined to the right with respect to the vertical direction (that is, toward the rear side of both ends of each reflective element (30s)). The end portion on the front side is formed to extend in an inclined direction) so that the end portion is closer to the light source (20). Therefore, it can be seen that the bright portion (B) that emits light in a stripe shape is generally along the desired direction (horizontal direction). formed extendedly.

Description

technical field [0001] The present invention relates to a lamp including a plate-shaped light guide. Background technique [0002] Conventionally, a lamp having a light guide for guiding light incident from a light source in a desired direction is known, and a light guide including a plate-shaped light guide is known. [0003] "Patent Document 1" describes that as a plate-shaped light guide in such a lamp, the light guided in the plate-shaped light guide is internally reflected by a plurality of reflective elements formed on the rear surface and is reflected from the plate-shaped light guide. Shoot ahead. [0004] In the plate-shaped light guide described in "Patent Document 1", its front and rear surfaces are aligned vertically along the desired direction (that is, the direction in which light from the light source incident on the plate-shaped light guide is guided). Each reflective element is formed to extend in a direction perpendicular to the desired direction. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V8/00F21V5/04
CPCF21S8/00F21V5/04F21V2200/00
Inventor 仲田麻美
Owner KOITO MFG CO LTD
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