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. 03, 2023
Filed:
Mar. 08, 2021
Sintai Optical (Shenzhen) Co., Ltd., ShenZhen, CN;
Asia Optical Co., Inc., Taichung, TW;
Rong-Shun Syu, Taichung, TW;
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen, CN;
ASIA OPTICAL CO., INC., Shenzhen, CN;
Abstract
A lens assembly includes a first lens, a second lens, and a third lens. The first lens is with negative refractive power and includes a concave surface facing an image side. The second lens is with positive refractive power and includes a convex surface facing the image side. The third lens is with positive refractive power and includes a convex surface facing an object side. The first lens, the second lens, and the third lens are arranged in order from the object side to the image side along an optical axis. The lens assembly satisfies the following condition: 3.5≤R/≤8; wherein Ris a radius of curvature of an object side surface of the second lens and f is an effective focal length of the lens assembly.