The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2024
Filed:
Jun. 30, 2021
Applicant:
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Inventors:
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 7/09 (2021.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 15/1441 (2019.08); G02B 7/09 (2013.01); G02B 13/0065 (2013.01);
Abstract
A telephoto imaging system includes: a solid lens assembly and a tunable lens assembly. The solid lens assembly includes a first group, a second group, and a third group of solid lenses along the optical axis from the object plane to the image plane. The tunable lens assembly is configured for zooming under the effect of a driving mechanism to achieve focusing on objects at different distances. The following condition is satisfied by the tunable lens assembly when at least an in-focus state exists in the focusing process: 0<|delta(f/ft)|<0.9.