Title:
VEHICULAR LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2023097739
Kind Code:
A
Abstract:
To provide a vehicular lighting fixture including a projection lens that can secure sufficient lightness of a light distribution pattern after realizing a lighting fixture design in which the projection lens is seen to be a narrow width shape in a front view of the lighting fixture.SOLUTION: A vehicular lighting fixture is configured to emit projection light from a light source unit 20 toward the front of the lighting fixture through a projection lens 30. The projection lens 30 comprises a projection surface 30a which is in a longitudinally long outward shape in a front view of the lighting fixture. The light source unit 20 is configured to reflect the projection light from a light emitting element 22 by a reflector 24 and then make it incident on the projection lens 30 as light converging in a lighting fixture right-left direction. Then the projection lens 30 comprises an incidence surface 30b formed to a larger width than the projection surface 30a and a pair of right and left rising wall surfaces 30c formed spreading toward the rear of the lighting fixture from both end edges of the projection surface 30a to both right and left sides, and the projection light from the light source unit 20 is made incident efficiently from the incidence surface 30b to be guided to the projection surface 30a.SELECTED DRAWING: Figure 2
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Inventors:
FUJITA SHOJI
MATSUMOTO AKINORI
MATSUMOTO AKINORI
Application Number:
JP2021213991A
Publication Date:
July 10, 2023
Filing Date:
December 28, 2021
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
F21S41/143; F21S41/26; F21S41/148; F21S41/16; F21S41/27; F21S41/29; F21S41/32; F21S41/50
Attorney, Agent or Firm:
Takashi Moriyama
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