MUMBAI, India, April 25 -- Intellectual Property India has published a patent application (202517032970 A) filed by Digilens Inc., Sunnyvale, U.S.A., on April 3, for 'waveguide-based displays incorporating evacuated periodic structures.'

Inventor(s) include Grant, Alastair, John; Lee, Hyesog; Li, Yuyu; Hill, Baeddan George; Li, Gang; Smalley, Joseph Stephen Thomas; and Popovich, Milan Momcilo.

The application for the patent was published on April 25, under issue no. 17/2025.

According to the abstract released by the Intellectual Property India: "Disclosed herein is a waveguide based display including: an optically transparent substrate; an input grating including an evacuated periodic structure (EPS) supported by the substrate, wherein t...