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.

Date of Patent:
Jan. 30, 2024

Filed:

Dec. 03, 2021
Applicant:

Zhejiang Sunny Optics Co., Ltd., Zhejiang, CN;

Inventors:

Qi Wu, Zhejiang, CN;

Fujian Dai, Zhejiang, CN;

Liefeng Zhao, Zhejiang, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 13/00 (2006.01); G02B 13/02 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 15/143105 (2019.08); G02B 13/009 (2013.01); G02B 13/02 (2013.01); G02B 27/0025 (2013.01);
Abstract

The disclosure provides a zoom lens group, sequentially including, from an object side to an image side along an optical axis: a first lens group with positive refractive power, including a first lens with refractive power and a second lens with refractive power, which are sequentially arranged along the optical axis; a second lens group with negative refractive power, including a third lens with negative refractive power and a fourth lens with refractive power, which are sequentially arranged along the optical axis; and a third lens group with positive refractive power, including a fifth lens with positive refractive power, a sixth lens with refractive power, a seventh lens with negative refractive power and an eighth lens with refractive power, which are sequentially arranged along the optical axis, Positions of the second lens group and the third lens group on the optical axis are adjustable.


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