US 12,442,505 B2
Vehicle lamp
Shohei Fukuda, Tokyo (JP); and Naganori Inagaki, Tokyo (JP)
Assigned to STANLEY ELECTRIC CO., LTD., Tokyo (JP)
Appl. No. 18/855,988
Filed by Stanley Electric Co., Ltd., Tokyo (JP)
PCT Filed Apr. 11, 2023, PCT No. PCT/JP2023/014671
§ 371(c)(1), (2) Date Oct. 10, 2024,
PCT Pub. No. WO2023/204097, PCT Pub. Date Oct. 26, 2023.
Claims priority of application No. 2022-069359 (JP), filed on Apr. 20, 2022.
Prior Publication US 2025/0230915 A1, Jul. 17, 2025
Int. Cl. F21S 43/241 (2018.01)
CPC F21S 43/241 (2018.01) 7 Claims
OG exemplary drawing
 
1. A vehicle lamp comprising:
a first light source and a second light source; and
a light guide body configured to guide light emitted from the first light source and the second light source,
wherein the light guide body has:
a rod-shaped first light guide part;
a first incidence part that is located on a base end side of the first light guide part and that is configured to cause the light emitted from the first light source to enter the first light guide part;
a plurality of first reflection cuts that is located on a back surface side of the first light guide part and that is configured to reflect the light guided toward a tip side of the first light guide part toward a front surface side of the first light guide part;
a light emitting part that is located on the front surface side of the first light guide part and that is configured to emit the light reflected by the plurality of first reflection cuts to an outside of the first light guide part;
a second light guide part obliquely connected to the back surface side of the first light guide part via a connecting part in a direction toward the tip side of the first light guide part;
a second incidence part that is located on a base end side of the second light guide part and that is configured to cause the light emitted from the second light source to enter the second light guide part;
an opening part that is located between the second light guide part and the back surface side of the first light guide part and that is configured to form an air layer; and
a light guide output part that is located on a side of the second light guide part which faces the back surface side of the first light guide part across the opening part and that is configured to emit the light guided toward the tip side of the second light guide part to the air layer, and
a plurality of second reflection cuts is provided on the back surface side of the first light guide part which is across the opening part.