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:
May. 12, 2022
Cineappo Laser Cinema Technology (Beijing) Co., Ltd, Beijing, CN;
Wei Fu, Beijing, CN;
CINEAPPO LASER CINEMA TECHNOLOGY (BEIJING) CO., LTD, Beijing, CN;
Abstract
A stereoscopic projection device is provided, including a projector including includes a lens assembly for emitting partially polarized light and polarization stereoscopic conversion equipment including a 3D light valve which is rotationally installed to a light-emitting side of the lens assembly and is parallel to the lens assembly, such that the partially polarized light passes through the 3D light valve to be converted into left hand circularly polarized light and right hand circularly polarized light. When the partially polarized light is subjected to light spot offset, the 3D light valve is rotationally regulated according to polarization characteristics of the partially polarized light and rotational symmetry of the light valve and has the same effect on the light polarization before and after being rotated, the 3D light valve is enabled to cover the current light spot range formed at the 3D light valve by the light emitted from the lens assembly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile