US Patent Issued to BEIJING XIAOMI MOBILE SOFTWARE on July 21 for "Optical system and photographing device having optical system" (Japanese Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,707, issued on July 21, was assigned to BEIJING XIAOMI MOBILE SOFTWARE Co. LTD. (Beijing).

"Optical system and photographing device having optical system" was invented by Yasuhiko Obikane (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes: a first lens group having a positive refractive power, a second lens group having a negative refractive power and a third lens group having a positive or negative refractive power, arranged from an object side to an image side; when focusing, the second lens group moves along an optical axis, positions of the first and third lens groups relative to an imaging plane along the optical a...