US Patent Issued to Canon on May 12 for "Optical element and optical device including the same" (Japanese Inventor)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,300, issued on May 12, was assigned to Canon K.K. (Tokyo).

"Optical element and optical device including the same" was invented by Kazue Uchida (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical element includes a substrate made of a resin material and an antireflection film. The antireflection film consists of a dielectric layer formed on the substrate and a porous layer formed on the dielectric layer. The dielectric layer includes a first layer including silicon oxide and a second layer including tantalum oxide. The porous layer includes silicon oxide or magnesium fluoride."

The patent was filed on Dec. 3, 2021, under Applic...