ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,458, issued on Oct. 28.
"High efficiency waveguide-based near-eye displays" was invented by Yuqiang Ding (Orlando, Fla.), Qian Yang (Orlando, Fla.), Zhiyong Yang (Orlando, Fla.) and Shin-Tson Wu (Orlando, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods to improve efficiency of in-coupling electromagnetic waves, such as in a visible light wavelength range, into a waveguide system arrangement are disclosed. The waveguide system includes: a display or an illumination assembly; a waveguide substrate; a polarization volume grating or a spin-dependent bifacial metasurface as in-coupler, which efficiently couples electromagnetic wav...