US Patent Issued to RealD Spark on Oct. 6 for "Waveguide manufacturing methods" (British, American Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,361, issued on Oct. 6, was assigned to RealD Spark LLC (Boulder, Colo.).

"Waveguide manufacturing methods" was invented by Michael G. Robinson (Boulder, Colo.) and Graham J Woodgate (Henley-on-Thames, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Forming an array of metallised light input wells and an array of light-deflecting wells in an optical waveguide involves the steps of forming holes through a capped adhesive layer, attaching the adhesive layer to a substrate, metallising the substrate and adhesive layer and removing the capping to expose adhesive and metallised regions. The substrate is aligned to a well layer with an array of...