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:
Feb. 21, 2023
Filed:
Mar. 17, 2020
Sintai Optical (Shenzhen) Co., Ltd., ShenZhen, CN;
Asia Optical Co., Inc., Taichung, TW;
Yuan-Chen Chen, Taichung, TW;
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen, CN;
ASIA OPTICAL CO., INC., Taichung, TW;
Abstract
A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is with negative refractive power. The second lens is a meniscus lens and includes a convex surface facing the object side and a concave surface facing the image side. The third lens includes a concave surface facing the object side. The fourth lens is with positive refractive power and includes a convex surface facing the object side. The fifth lens includes a convex surface facing the image side. The sixth lens is with negative refractive power. The seventh lens is with positive refractive power and includes a convex surface facing the object side. The fifth lens and the sixth lens are cemented.