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. 17, 2023
Filed:
Jan. 08, 2021
Applicant:
Zhejiang Sunny Optics Co., Ltd., Yuyao, CN;
Inventors:
Assignee:
ZHEJIANG SUNNY OPTICS CO., LTD., Yuyao, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 13/004 (2013.01); G02B 27/0025 (2013.01);
Abstract
The present application discloses an optical imaging system, comprising, in order from an object side to an image side along an optical axis: a planar glass, a first lens having a positive focal power, a second lens having a negative focal power and a plurality of subsequent lenses having a respective focal power, wherein the maximum field of view FOV of the optical imaging system satisfies FOV≥40°; and a radius of curvature R3 of an object side surface of the second lens and a radius of curvature R4 of an image side surface of the second lens satisfy −0.5<R3/R4<0.