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:
Jan. 12, 2021
Filed:
Feb. 22, 2019
Guangdong Oppo Mobile Telecommunications Corp., Ltd., Guangdong, CN;
Jian Bai, Guangdong, CN;
Cheng Tang, Guangdong, CN;
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong, CN;
Abstract
A laser projection module, a depth camera and an electronic device are provided. The laser projection module includes a laser emitter, a collimation element, a diffraction element and a detection component. The laser emitter is configured to emit laser. The collimation element is configured to collimate the laser. The diffraction element is configured to diffract the laser collimated by the collimation element to define a laser pattern. The detection component is disposed to at least one of the collimation element and the diffraction element, and configured to output an electrical signal. The processor is coupled to the detection component, and configured to receive the electrical signal and detect whether the at least one of the collimation element and the diffraction element are abnormal according to the electrical signal.