US 11,987,174 B2
Lighting device
Hye Jin Park, Gyeongsan-si (KR); Jong Min Lee, Gyeongsan-si (KR); Ki Hae Shin, Gyeongsan-si (KR); Jong Woon Kim, Gyeongsan-si (KR); and Min Gi Jung, Gyeongsan-si (KR)
Assigned to SL Corporation, Daegu (KR)
Filed by SL Corporation, Daegu (KR)
Filed on May 23, 2022, as Appl. No. 17/750,550.
Claims priority of application No. 10-2021-0079159 (KR), filed on Jun. 18, 2021.
Prior Publication US 2022/0402424 A1, Dec. 22, 2022
Int. Cl. B60Q 1/24 (2006.01); B60Q 1/26 (2006.01)
CPC B60Q 1/247 (2022.05) [B60Q 1/2665 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a light irradiation unit that generates light;
an optical path adjustment unit that adjusts a path of the light irradiated from the light irradiation unit to allow a road surface pattern to be formed at a predetermined location on a road surface around a vehicle; and
a driving unit that adjusts the optical path adjustment unit to allow the road surface pattern to be formed at different locations on the road surface around the vehicle,
wherein the light irradiation unit includes:
a light source unit that generates the light; and
a light transmission unit that transmits the light generated by the light source unit to the optical path adjustment unit,
wherein the light transmission unit includes:
a first lens and a second lens that adjust concentration of the light generated by the light source unit; and
a mirror unit that reflects the light that passes through one of the first lens or the second lens to the other of the first lens or the second lens, and
wherein optical axes of the first lens and the second lens are oriented at different directions.