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:
Jan. 14, 2025
Filed:
Apr. 25, 2019
Zhejiang Sunny Optics Co., Ltd., Zhejiang, CN;
ZHEJIANG SUNNY OPTICS CO., LTD., Zhejiang, CN;
Abstract
An optical imaging system includes sequentially from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has a refractive power. The second lens has a refractive power, an object-side surface of the second lens is a concave surface, and an image-side surface of the second lens is a convex surface. The third lens has a refractive power. The fourth lens has a negative refractive power. The fifth lens has a positive refractive power, and an object-side surface of the fifth lens is a convex surface. The sixth lens has a negative refractive power. The seventh lens has a refractive power. 44°≤HFOV<55°, HFOV being a half of a maximum field of view of the optical imaging system.