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:
Aug. 22, 2023
Filed:
Feb. 08, 2021
Valve Corporation, Bellevue, WA (US);
Joshua Mark Hudman, Issaquah, WA (US);
Kameron Wade Rausch, Sammamish, WA (US);
Valve Corporation, Bellevue, WA (US);
Abstract
Improved illumination optics for various applications. The illumination optics may include an optical beam spreading structure that provides a large spread angle for an incident collimated beam or provides finer detail or resolution compared to convention diffractive optical elements. The optical beam spreading structure may include first and second spatially varying polarizers that are optically aligned with each other. The first and second spatially varying polarizers may be formed of a liquid crystal material, such as a multi-twist retarder (MTR). The first and second spatially varying polarizers may diffract light of orthogonal polarization states, which allows for different diffraction patterns to be used in a single optical structure. The two patterns may provide a combined field of view that is larger than either of the first and second fields of view or may provide finer detail or resolution than the first or second fields of view can provide alone.