ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,335, issued on July 15, was assigned to FUJIFILM Corp. (Tokyo).
"Optical system, lens device, imaging device, and projection device" was invented by Tsuyoshi Mitarai (Saitama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system is disposed on an opposite side to an object side with respect to an objective lens, and includes: a rotational movement member that is rotationally movably supported; and a plurality of light transmissive regions that are formed in the rotational movement member, are configured to be able to be disposed at a position intersecting an optical axis of the objective lens, and have different light transmission ...