US 11,882,263 B2
ToF camera
Kang Yeol Park, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/753,361
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Aug. 28, 2020, PCT No. PCT/KR2020/011585
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/040476, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10-2019-0107459 (KR), filed on Aug. 30, 2019.
Prior Publication US 2022/0329774 A1, Oct. 13, 2022
Int. Cl. H04N 13/254 (2018.01); H04N 13/296 (2018.01); G01S 17/894 (2020.01); G01S 7/481 (2006.01); G01S 7/4865 (2020.01)
CPC H04N 13/254 (2018.05) [G01S 7/4815 (2013.01); G01S 7/4865 (2013.01); G01S 17/894 (2020.01); H04N 13/296 (2018.05)] 14 Claims
OG exemplary drawing
1. A time of flight (ToF) camera comprising:
a light source unit including an infrared light-emitting device array and configured to generate a light signal;
a lens unit disposed on the light source unit and including a plurality of lenses; and
an adjustment unit configured to adjust the lens unit such that a light pattern of the light signal, which has passed through the lens unit, becomes a surface lighting or a spot lighting including a plurality of spot patterns,
wherein the lens unit is configured to have a preset and controllable distortion aberration in a form of barrel distortion in which irradiance of the light pattern decreases in a direction away from a central portion.