ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,055, issued on March 24, was assigned to Moxtek Inc. (Orem, Utah).
"Multilayer grid waveplate" was invented by Daniel Bacon-Brown (Orem, Utah).
According to the abstract* released by the U.S. Patent & Trademark Office: "The waveplates herein (A) can have high performance across a broad wavelength range and broad range of incident angles; (B) can be thin; and (C) can withstand a high temperature. The waveplates can include ribs 12 on a substrate 11 with a channel 13 between each pair of adjacent ribs 12. Each rib 12 can include the following layers in the following order moving outward from the substrate: a bottom-medium-layer BM (nBM), a high-layer H (nH), then a top-medium-laye...