US 12,455,059 B2
Light source unit for vehicular lighting tool and vehicular lighting tool
Yoshiro Sato, Isehara (JP)
Assigned to Ichikoh Industries, Ltd., Isehara (JP)
Appl. No. 18/723,754
Filed by Ichikoh Industries, Ltd., Isehara (JP)
PCT Filed Dec. 26, 2022, PCT No. PCT/JP2022/047888
§ 371(c)(1), (2) Date Jun. 24, 2024,
PCT Pub. No. WO2023/127789, PCT Pub. Date Jul. 6, 2023.
Claims priority of application No. 2021-215286 (JP), filed on Dec. 28, 2021; application No. 2021-215287 (JP), filed on Dec. 28, 2021; and application No. 2021-215288 (JP), filed on Dec. 28, 2021.
Prior Publication US 2025/0109834 A1, Apr. 3, 2025
Int. Cl. F21S 43/40 (2018.01); F21S 43/16 (2018.01); F21S 43/19 (2018.01); F21S 43/20 (2018.01); F21S 43/31 (2018.01)
CPC F21S 43/401 (2024.05) [F21S 43/16 (2018.01); F21S 43/19 (2018.01); F21S 43/255 (2018.01); F21S 43/26231 (2024.05); F21S 43/31 (2018.01)] 13 Claims
OG exemplary drawing
 
1. A light source unit for a vehicle lamp comprising:
a light generating portion including
a light source that emits excitation light,
a light emitting layer that is constituted by using an inorganic material, and emits generated light by irradiation of the excitation light, and
a holding member that holds the light emitting layer;
a lens member that irradiates the generated light from the light emitting layer in a front direction in a vehicle-mounted state; and
a single reflective portion that is disposed between the light emitting layer and the lens member, and is capable of transmitting the generated light generated in the light emitting layer,
wherein when the light source is turned off, the lens member reflects a part of light from outside of the lens member.