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Vehicle light fixture

A technology for lamps and vehicles, which is applied to vehicle parts, light sources, lighting devices, etc., and can solve problems such as the limited line of sight of plate-shaped light guides and the inability to maintain the characteristics of light-emitting components.

Active Publication Date: 2021-11-02
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the plate-shaped light guide is configured by forming a plurality of reflective elements in steps on the first plate surface on the back side, the direction of sight in which the plate-shaped light guide appears to be bright and luminous is limited.
[0008] On the other hand, by adopting the structure described in the above-mentioned Patent Document 2, although there may be a change in the light emitting method of the light emitting part, the light emitting method of each light emitting part itself cannot maintain the characteristics.

Method used

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  • Vehicle light fixture
  • Vehicle light fixture
  • Vehicle light fixture

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Embodiment Construction

[0045] Embodiments of the present invention will be described below using the drawings.

[0046] figure 1 It is a plan view showing a vehicle lamp 10 according to an embodiment of the present invention. also, figure 2 is a plan view showing that the lamp unit 20 of the vehicle lamp 10 is taken out, image 3 yes figure 2 III direction view.

[0047] In the above-mentioned figures, the direction indicated by X is the "front" of the vehicle lamp 10 ("rear" of the vehicle), the direction indicated by Y is "right" (also "right" of the vehicle), and Z The direction shown is "above". The same applies to other figures.

[0048] Such as figure 1 As shown, the vehicular lamp 10 of the present embodiment is configured as a tail light disposed at the left rear end of the vehicle, but also functions as a so-called welcome light (described later).

[0049] The vehicle lamp 10 of the present embodiment is configured by incorporating a lamp unit 20 into a lamp chamber formed by a lamp...

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Abstract

The purpose of this invention is to improve the decorative properties when the fixture is turned on, in a vehicle light fixture equipped with a plate-shaped light guide. As the plate-shaped light guide (32), light from five light sources (40A1, 40A2, 40A3, 40A4 and 40A5) is totally reflected by a plurality of reflective elements (32s) on the first plate surface (32a) formed on the rear surface side thereof, and subsequently emitted from the second plate surface (32b) towards the front of the light fixture unit. At that time, after positioning five light-emitting regions (32A1, 32A2, 32A3, 32A4 and 32A5) on the plate-shaped light guide (32) at intervals in the horizontal direction, the plurality of reflective elements (32s) are positioned continuously in a line along the line L which extends in a direction perpendicular to the horizontal direction for each light-emitting region (32A1 to 32A5). Each of the reflective elements (32s) is formed so as to have an roughly concave surface shape. In addition, each of the light sources (40A1 to 40A5) can be individually lit up in a state of being positioned for each light-emitting region (32A1 to 32A5).

Description

technical field [0001] The present invention relates to a vehicle lamp including a plate-shaped light guide. Background technique [0002] Conventionally known lamps for vehicles are configured such that light from a light source entering a plate-shaped light guide body is totally reflected by a plurality of reflective elements formed on a first plate surface of the light guide body, and then emitted from a second plate surface of the light guide body. Shoots toward the front of the light fixture. [0003] As such a vehicle lamp, Patent Document 1 describes that light emitted from a plurality of light sources arranged along the rear end surface of a plate-shaped light guide is made to enter the plate-shaped light guide from the rear end surface. [0004] On the other hand, as a vehicle lamp, Patent Document 2 describes sequentially turning on light sources arranged for each light emitting member in addition to a structure including a light emitting unit in which a plurality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S43/237F21S43/239F21S43/245F21S43/249F21W103/00F21W103/10F21W103/20F21W103/35F21W103/55F21Y115/10F21Y115/30
CPCF21S43/245F21S43/239F21S43/237F21S43/249
Inventor 堀川彰仁
Owner KOITO MFG CO LTD