ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,724, issued on July 21, was assigned to SCHOTT AG (Mainz, Germany).
"Waveguide and augmented/mixed reality device" was invented by Frank-Thomas Lentes (Bingen, Germany), Clemens Ottermann (Hattersheim, Germany) and Stefan Weidlich (Mainz, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide for guiding an image pixel light includes: a solid body including an optical material which is transparent for at least a light with a wavelength of 460 nm; an in-coupling surface located on the solid body; and an out-coupling surface located on the solid body, wherein the optical material has an absorption coefficient Kappa460 nm for light having a...