ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,775,132, issued on Oct. 27, was assigned to VIAVI Solutions Inc. (Chandler, Ariz.).
"Angle selective filter" was invented by Georg J. Ockenfuss (Santa Rosa, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In some implementations, an optical filter assembly includes a first optical filter disposed on a first side of a substrate, wherein the first optical filter is a bandpass filter; and a second optical filter disposed on a second side of the substrate, wherein the second optical filter is associated with a threshold amount of angle shift at a threshold angle of incidence."
The patent was filed on Nov. 7, 2023, under Application No. 18/503,843.
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