US 12,287,237 B2
Object information detection device
Chun Chuang, Taipei (TW)
Assigned to Rayprus Technology (Foshan) Co., Ltd., Foshan (CN)
Filed by Rayprus Technology (Foshan) Co., Ltd., Foshan (CN)
Filed on Oct. 10, 2023, as Appl. No. 18/378,257.
Claims priority of application No. 202211242723.3 (CN), filed on Oct. 11, 2022.
Prior Publication US 2024/0118133 A1, Apr. 11, 2024
Int. Cl. G01J 1/04 (2006.01)
CPC G01J 1/0407 (2013.01) 9 Claims
OG exemplary drawing
 
1. An object information detection device, comprising:
a base, the base defines an internal space and a light channel, the internal space extends in an axial direction of the base, the light channel extends in a circumferential direction of the base;
a light emitting element located in the internal space, the light emitting element is configured to emit a first light beam along an axial direction of the internal space;
a light receiving element located in the internal space, the light receiving element is opposite to the light emitting element along the axial direction of the internal space;
a first optical element located between the light emitting element and the light receiving element, the first optical element is a reflector with a first reflecting surface which is conical, the first reflecting surface is oriented towards the light emitting element, the first reflecting surface is configured to reflect the first light beam in the circumferential direction of the base to form a second light beam distributed in the circumferential direction of the base, the second beam passes through the light channel and be reflected by an external object to form a third light beam; and
a second optical element located between the first optical element and the light receiving element, the second optical element is a reflector with a second reflecting surface which is conical, the second reflecting surface is oriented towards the light receiving element and converges the third light beam to the light receiving element;
the second reflecting surface defines an incidence area and a blocking area, the incidence area is configured to allow the light emitting to the light receiving element, the blocking area is configured to stop the light emitting to the light receiving element.