VEHICULAR LIGHTING TOOL

Japanese Patent JP2023075995

A

To provide a vehicular lighting tool capable of improving uniformity of light emission when using light incident from different positions of a light guide body for the light emission of the light guide body.SOLUTION: A light guide body 3 includes a light guide part 5a having a size in one direction perpendicular to the optical axes of lights L1, L2 emitted from a light source part 2 and a size in the other direction perpendicular to the optical axes and one direction, the size in the other direction being longer than the size in one direction, and an incidence part 6 located on one end side of the light guide part 5a for making the lights L1, L2 emitted from the light source part 2 incident into the light guide part 5a. Herein, a plurality of light-emitting devices 2a, 2b is arranged in a state that both of the light emitting devices neighboring each other in the other direction are adjacent to each other. The incidence part 6 includes a first incidence surface 6a which is located in a range of overlap with the plurality of light-emitting devices 2a, 2b on the side of the light guide part 5a opposite to the light source part 2 in plan view for making parts of the lights L1, L2 emitted from the plurality of light-emitting devices 2a, 2b incident into the light guide part 5a while diffusing them in the other direction.SELECTED DRAWING: Figure 6

SAITO YOSHIHIRO

JP2021189120A

June 01, 2023

November 22, 2021

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STANLEY ELECTRIC CO LTD

F21S43/249; F21S43/14; F21S43/241; F21S43/243; F21V8/00

Yasushi Matsunuma
Masahisa Matsumoto
Junichi Kobayashi

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