ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,838, issued on April 21, was assigned to LASERTEC Corp. (Yokohama, Japan).

"Calculation method, image-capturing method, and image-capturing apparatus" was invented by Yoshihiro Nishimura (Yokohama, Japan), Shota Fujiki (Yokohama, Japan) and Yoshihiro Aoki (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calculation method, an image-capturing method, and an image-capturing apparatus are provided which can easily calculate a shear amount produced by an optical element arranged on an optical path of an interference optical system. A calculation method according to the present disclosure is a calculation method of calculating a shear a...