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:
Aug. 11, 2026
Filed:
Aug. 03, 2022
Sintai Optical (Shenzhen) Co., Ltd., ShenZhen City, CN;
Asia Optical Co., Inc., Taichung, TW;
Hsi-Ling Chang, Taichung, TW;
Guo-Yang Wu, Taichung, TW;
Chien-Hung Chen, Taichung, TW;
Ming-Huang Tseng, Taichung, TW;
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen City, CN;
ASIA OPTICAL CO., INC., Taichung, TW;
Abstract
A lens assembly includes a first, second, third, and fourth in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens is with negative refractive power. The third lens is with positive refractive power. The fourth lens is a meniscus lens with refractive power. The lens assembly satisfies at least one of following conditions: −0.1≤R/R≤0.53; 2≤TTL/SD4≤7; 0.1≤SD1/f≤0.6.