US Patent Issued to CANON on Dec. 30 for "Acquiring apparatus, acquiring method, and optical system manufacturing method" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,348, issued on Dec. 30, was assigned to CANON K.K. (Tokyo).

"Acquiring apparatus, acquiring method, and optical system manufacturing method" was invented by Tomohiro Sugimoto (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acquiring apparatus includes a first light source, a measurement optical system, an image sensor, an adjusting unit, an interferometer, and a calculating unit configured to calculate a distance between adjacent target surfaces among the plurality of target surfaces based on an interference signal. The index surface, a surface containing the first point, a surface containing the second point, and the light receivi...