US 12,137,505 B2
Floodlight control apparatus and floodlight control method
Yohei Ogura, Kanagawa (JP); Kensei Jo, Kanagawa (JP); Kenichiro Oi, Tokyo (JP); and Takafumi Fujita, Kanagawa (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP); and SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 17/289,103
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP); and SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Oct. 8, 2019, PCT No. PCT/JP2019/039651
§ 371(c)(1), (2) Date Apr. 27, 2021,
PCT Pub. No. WO2020/095603, PCT Pub. Date May 14, 2020.
Claims priority of application No. 2018-209456 (JP), filed on Nov. 7, 2018.
Prior Publication US 2022/0007482 A1, Jan. 6, 2022
Int. Cl. H05B 47/115 (2020.01); G01S 17/04 (2020.01); G01S 17/08 (2006.01)
CPC H05B 47/115 (2020.01) [G01S 17/04 (2020.01); G01S 17/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A floodlight control apparatus, comprising:
a light receiving part that includes a plurality of light receiving elements configured to receive reflected light of light projected by a light projector;
an object detecting part configured to detect, based on the reflected light, one of a presence or an absence of an object within a distance measurable range which is a range where the light receiving part is operable to receive the reflected light; and
a control part configured to:
control, based on the detection of the absence of the object, the light projector to project the light at a first power;
control, based on the detection of the presence of the object, the light projector to project the light at the first power for a non-detection region of the object; and
control, based on the detection of the presence of the object, the light projector to project the light at a second power higher than the first power for a detection region of the object.
 
10. A floodlight control method, comprising:
receiving, by a plurality of light receiving elements of a light receiving part, reflected light of light projected by a light projector;
detecting, based on the reflected light, one of a presence or an absence of an object within a distance measurable range which is a range where the light receiving part is operable to receive the reflected light;
controlling, based on the detection of the absence of the object, the light projector to project the light at a first power;
controlling, based on the detection of the presence of the object, the light projector to project the light at the first power for a non-detection region of the object; and
controlling, based on the detection of the presence of the object, the light projector to project the light at a second power higher than the first power for a detection region of the object.