US 12,461,237 B2
Light range finding apparatus
Toshiaki Nagai, Kariya (JP); and Sakito Miki, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Aug. 12, 2021, as Appl. No. 17/401,012.
Application 17/401,012 is a continuation of application No. PCT/JP2020/003952, filed on Feb. 3, 2020.
Claims priority of application No. 2019-024225 (JP), filed on Feb. 14, 2019.
Prior Publication US 2021/0373155 A1, Dec. 2, 2021
Int. Cl. G01S 17/08 (2006.01); G01C 3/06 (2006.01); G01S 7/484 (2006.01); G01S 7/4861 (2020.01); G01S 17/931 (2020.01)
CPC G01S 17/08 (2013.01) [G01C 3/06 (2013.01); G01S 7/484 (2013.01); G01S 7/4861 (2013.01); G01S 17/931 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A light range finding apparatus comprising:
a light emitting optical system that projects a pattern light having an irradiation region and a non-irradiation region;
a light receiving sensor including an arrayed light receiving element;
a light receiving optical system that receives reflected light of the pattern light reflected at an object and enlarges a portion of the reflected light corresponding to the irradiation region to be larger than a single light receiving element and causes the enlarged reflected light to be incident on the light receiving sensor;
a distance measurement unit that measures a distance to the object based on an output of the light receiving sensor; and
a positional alignment section that performs, based on the output of the light receiving sensor, positional alignment of at least a part of the light emitting optical system and the light receiving optical system.