US Patent Issued to LASERTEC on Dec. 23 for "Calculation method, image-capturing method, and image-capturing apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,270, issued on Dec. 23, was assigned to LASERTEC Corp. (Yokohama, Japan).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A calculation method according to the present disclosure is a calculation method of calculating a shear amount produced by a predetermined optical element which is arranged on an optical path of an image-capturing optical system. The calculation method includes a step of capturing a plurality of interference contrast images of a quadr...