ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,067, issued on Aug. 25, was assigned to CANON K.K. (Tokyo).

"Optical element, optical system, image pickup apparatus, and optical apparatus" 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, and an antireflection film. The antireflection film consists of a first layer formed on the substrate, and a second layer formed on the first layer. The first layer and the second layer each include an organic compound. Predetermined inequalities are satisfied."

The patent was filed on Oct. 26, 2023, under Application No. 18/494,909.

*For further information, including images, c...