The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2022
Filed:
Jun. 12, 2019
Nanchang O-film Bio-identification Technology Co., Ltd., Nanchang, CN;
Joseph Lin, Nanchang, CN;
Horatio Lee, Nanchang, CN;
Martin Chen, Nanchang, CN;
George Chou, Nanchang, CN;
NANCHANG O-FILM BIO-IDENTIFICATION TECHNOLOGY CO., LTD., Nanchang, CN;
Abstract
Disclosed are a projection module, a structured light three-dimensional imaging device, and an electronic apparatus. The projection module includes a laser emitter and a reflective grating. The laser emitter includes a light emitting surface from which laser light is emitted. The reflective grating includes a reflecting surface arranged obliquely relative to the light emitting surface and opposite to the light emitting surface. The reflective face is provided with a grating microstructure thereon. The projection module can adjust a reflection angle of the laser light when expanding beams to generate a laser pattern.