公开(公告)号：US20240183657A1

公开(公告)日：2024-06-06

申请号：US18527700

申请日：2023-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daisuke NAGATOMO ,  Shinji UEYAMA ,  Takamasa SUGIURA ,  Euisun CHOI ,  Fumitaka MOROISHI ,  Masanori IZUMITA ,  Takahiro TOKUMIYA ,  Tatsuya ISHIMOTO ,  Masato KAJINAMI

IPC: G01B11/30

CPC classification number: G01B11/303 ,  G01B11/306

Abstract: An optical device includes a monochromatic light source, a light distribution switching portion configured to transmit monochromatic light emitted from the monochromatic light source in one fan-shaped region among a plurality of fan-shaped regions centered on a central optical axis and block the monochromatic light in other fan-shaped regions, an objective lens, an aperture stop configured to collect reflected light from the object, an imaging lens, which has passed through the aperture stop, a light receiver on an imaging plane formed by the imaging lens and configured to receive the reflected light from the object and photoelectrically convert the received reflected light, and a controller configured to instruct the light distribution switching portion to change a region transmitting light over time, and calculate a normal direction of the object based on an electrical signal photoelectrically converted by the light receiver.