US Patent Issued to Adeia Guides on Nov. 3 for "Refractive index modulation in diffractive gratings for optical elements of augmented reality and virtual reality displays" (Israeli Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,790, issued on Nov. 3, was assigned to Adeia Guides Inc. (San Jose, Calif.).

"Refractive index modulation in diffractive gratings for optical elements of augmented reality and virtual reality displays" was invented by Yuval Ofir (Kfar Ha-Oranim, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Head-mounted displays (HMD) or other suitable optical equipment with waveguides comprising an optical element comprising a diffractive grating. The optical element may comprise a plurality of microheaters corresponding to respective portions of the diffractive grating, wherein a plurality of voltages is applied to the plurality of microheaters to selective...