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US 2019/0170866 A1Published application
Photoreceptor, flight time measurement device, and optical radar
AssigneeSharp Kabushiki Kaisha
InventorsKATSUJI IGUCHI, HIDENORI KAWANISHI, KOJI TAKAHASHI, NORIAKI FUJII
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Abstract
A photodetector measures flight time by an imaging optical element imaging reflected light from an illuminated illumination region of an object illuminated by pulse light, and a light detection portion receiving the imaged light. The light detection portion is formed larger than a projection region reflected at the illumination region of the object and imaged on the light detection portion. In the light detection portion, a portion overlaying the projection region is activated as a light-detection region.
Claims20
A photodetector, comprising:
- a light detection portion,
- wherein the photodetector measures flight time by detecting reflected light from an illumination region of an object illuminated by pulse light, and the illumination region is imaged on the light detection portion as a projection region by an imaging optical element,
- wherein the light detection portion is formed larger than the projection region,
- and wherein, in the light detection portion, a portion overlaying the projection region is activated as a light-detection region.
1 more element
Dependencies are inferred from the claim text.