US Patent Issued to HTC on June 10 for "Waveguide device and optical engine" (Taiwanese Inventor)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,561, issued on June 10, was assigned to HTC Corp. (Taoyuan, Taiwan).

"Waveguide device and optical engine" was invented by Qing-Long Deng (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide device includes a first diffractive element, a second diffractive element, a third diffractive element, and a waveguide element. The first diffractive element has a first grating configured to diffract light of a wavelength to propagate with a first diffraction angle. The second diffractive element has a second grating configured to diffract the light of the wavelength to propagate with a second diffraction angle. The third diffractive ele...