ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,549, issued on April 7, was assigned to VIAVI SOLUTIONS INC. (Chandler, Ariz.).

"Optical filter including a high refractive index material" was invented by Georg Ockenfuss (Santa Rosa, Calif.), Markus Bilger (Santa Rosa, Calif.) and Marius Grigonis (Santa Rosa, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical filter including at least one of a high refractive index material and a low refractive index material; wherein the optical filter exhibits a reduced angle shift in at least one of a visible, near infrared, and an extreme ultraviolet wavelength is disclosed. A method of depositing a film is also disclosed."

The patent was filed ...