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:
Mar. 07, 2023
Filed:
Mar. 22, 2020
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Shu Chen, Beijing, CN;
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
Abstract
A multipath light test device for a time of flight (TOF) module includes: a light-splitting plate configured to split light emitted from the TOF module; a first reflector plate connected to the light-splitting plate and forming a first angle with the light-splitting plate; and a second reflector plate disposed on one side opposite to the first reflector plate and forming a second angle with the first reflector plate; one part of the emitted light from the TOF module is returned to the TOF module along a first optical path after being reflected by the light-splitting plate with a first reflectivity; and the other part of the emitted light from the TOF module is transmitted through the light-splitting plate and incident to the first reflector plate and then returned to the TOF module along a second optical path.