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:
Sep. 01, 2026

Filed:

Dec. 28, 2023
Applicant:

Largan Precision Co., Ltd., Taichung City, TW;

Inventors:

Kuan-Ting Yeh, Taichung City, TW;

Cheng-Yu Tsai, Taichung City, TW;

Assignee:

LARGAN PRECISION CO., LTD., Taichung City, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); G03B 17/17 (2021.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); G03B 17/17 (2013.01);
Abstract

An optical photographing lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The object-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has positive refractive power. The third lens element has negative refractive power. The image-side surface of the third lens element is concave in a paraxial region thereof. The image-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the seven lens elements has at least one inflection point.


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