US Patent Issued to BEIJING XIAOMI MOBILE SOFTWARE on April 7 for "Optical system and photographing device having optical system" (Japanese Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,240, issued on April 7, 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 negative refractive power, sequentially arranged from an object side, when focusing, the second lens group moves along an optical axis, the first lens group and the third lens group are fixed relative to the imaging plane; when a distance from a...