US Patent Issued to STMICROELECTRONICS (RESEARCH & DEVELOPMENT) on Nov. 25 for "Embedded transmissive diffractive optical elements" (British Inventor)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,165, issued on Nov. 25, was assigned to STMICROELECTRONICS (RESEARCH & DEVELOPMENT) Ltd. (Marlow, Great Britain).

"Embedded transmissive diffractive optical elements" was invented by James Peter Drummond Downing (Doune, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments provide optical lenses that include phase shift layers that transmit incident light with four or more distinct phase quantizations. In one embodiment, a lens includes a substrate, a first immersion material layer on the substrate, and a plurality of anti-reflective phase shift layers on the first immersion material layer. The phase shift layers define a ...