Title:
LAMP UNIT, AND VEHICLE LAMP FITTING
Document Type and Number:
WIPO Patent Application WO/2023/106422
Kind Code:
A1
Abstract:
Provided is a lamp unit capable of forming an illumination pattern having a desired brightness distribution, while efficiently utilizing light from a light source. In a lamp unit 20, a light source portion 21 provided with a plurality of light sources 31, a condensing lens 22, a light shielding member (shade 23), and a projection lens 24 are arranged along a lamp unit axis A2. An incident surface 33 comprises a curved incident surface portion 41 facing the plurality of light sources 31, and an annular incident surface portion 42 surrounding the curved incident surface portion 41, the condensing lens 22 has a reflecting surface 43 surrounding the curved incident surface portion 41, the light shielding member (shade 23) is disposed with a light shielding reference point (Ps) coinciding with the lamp unit axis A2, the plurality of light sources 31 are disposed with an emission optical axis 31L positioned above the lamp unit axis A2 in a vertical direction, and the condensing lens 22 is disposed with a condensing lens axis (A5, A6) positioned above the lamp unit axis A2 in the vertical direction.
Inventors:
OKUBO YASUHIRO (JP)
Application Number:
PCT/JP2022/045619
Publication Date:
June 15, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
ICHIKOH INDUSTRIES LTD (JP)
International Classes:
F21S43/20; F21S43/14; F21S43/19; F21S43/27; F21W103/60; F21Y115/10
Foreign References:
| JP2021111465A | 2021-08-02 | |||
| JP2020205237A | 2020-12-24 | |||
| JP2021118119A | 2021-08-10 |
Attorney, Agent or Firm:
SAKAMOTO & PARTNERS (JP)
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