ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,472, issued on Oct. 28, was assigned to DEXERIALS Corp. (Shimotsuke, Japan).
"Optical device" was invented by Tomu Takeda (Tochigi, Japan) and Hideto Sagawa (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 pit...