Title:
VEHICULAR LAMP
Document Type and Number:
Japanese Patent JP2022122322
Kind Code:
A
Abstract:
To simplify the structure of a light guide plate, to enhance the degree of freedom of a patter shape of a light emitting pattern, and to make design and manufacturing of the light guide body easy, in a vehicular lamp including the light guide plate.SOLUTION: A vehicular lamp includes: a light source 1 (11); and a light guide plate (light guide body) 2 having a surface and a rear surface, and for guiding the light of the light source inside. In the light guide plate 2, a plurality of light reflection steps 3 is formed on the rear surface which reflects the light guided inside and emits it from the surface, and a required light emission pattern is constituted by the light reflected in these light reflection steps 3 and emitted from the surface of the light guide plate 2. Then, the plurality of light reflection steps 3 includes a plurality of first light reflection steps 31 for reflecting the light guided inside the light guide plate 2 toward a required direction, and the directions of the light reflected by the plurality of first light reflection steps 31 and emitted from the light guide plate 2 are different from each other.SELECTED DRAWING: Figure 2
Inventors:
KOIZUMI HIROYA
Application Number:
JP2021019456A
Publication Date:
August 23, 2022
Filing Date:
February 10, 2021
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
F21S43/239; F21S2/00
Attorney, Agent or Firm:
Suzuki Akio