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:
Oct. 28, 2025
Filed:
Mar. 07, 2022
Dexerials Corporation, Shimotsuke, JP;
Tomu Takeda, Tochigi, JP;
Hideto Sagawa, Tochigi, JP;
DEXERIALS CORPORATION, Shimotsuke, JP;
Abstract
An optical device capable of achieving desired polarization properties including a light source, incident-side polarizing element, optical modulating element, emission-side first polarizing element, and emission-side second polarizing element, the first and second polarizing elements each have a wire-grid structure and include a plurality of convex portions arranged on a transparent substrate and spaced apart from each other at a pitch shorter than the wavelength of light in the light source, the transmission axis of the first polarizing element relative to the transmission axis of the incident-side polarizing element is within ±8.5°, and the convex portions of the second polarizing element are lattice-shaped extending in a predetermined direction and include, in order from the transparent substrate side, a reflection layer, dielectric layer, and absorption layer, the rotation angle of the absorption axis of the second polarizing element relative to the absorption axis of the incident-side polarizing element is within ±0.7°.