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:
Dec. 30, 2025
Filed:
Feb. 02, 2024
Triple Win Technology(shenzhen) Co. Ltd., Shenzhen, CN;
Wei-Wei Qi, Guangdong, CN;
TRIPLE WIN TECHNOLOGY (SHENZHEN) CO.LTD., Shenzhen, CN;
Abstract
A dot matrix projector includes an infrared light source used to emit infrared light, a collimating lens, a semi-transparent and semi-reflective plate on an output side of the collimating lens, a diffractive optical element on an output path of the semi-transparent and semi-reflective plate, and an infrared light conversion film on another output path of the semi-transparent and semi-reflective plate. The collimating lens is used to receive the infrared light from the infrared light source and collimate the infrared light to be parallel infrared light. The semi-transparent and semi-reflective plate is used to divide the parallel infrared light into a first part directly transmitting the semi-transparent and a second part being reflected by the semi-transparent and semi-reflective plate. The infrared light conversion film is configured to convert infrared light into visible light. A facial recognition module and an electronic device are also provided.