ALEXANDRIA, Va., March 31 -- United States Patent no. 12,591,139, issued on March 31, was assigned to GOOGLE LLC (Mountain View, Calif.).
"Curved lightguide in a see-through shell" was invented by Ozan Cakmakci (San Mateo, Calif.), Oscar Alberto Martinez (San Diego), Eliezer Glik (San Diego) and Han Zhang (Mountain View, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A head mounted display includes an eyeglasses frame, a lens framed in the eyeglasses frame, and a light engine disposed in the eyeglasses frame. The lens includes an optical shell comprising a world-facing spherical surface and an opposing eye-facing surface and a curved lightguide disposed in the optical shell. The curved lightguide incl...