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:
Sep. 26, 2023
Filed:
Aug. 06, 2020
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., Taichung, TW;
Abstract
A wide-angle lens assembly includes a front lens group and a rear lens group. The front lens group includes a first lens having negative refractive power and a second lens having negative refractive power, wherein the first lens is a meniscus lens and the second lens includes a concave surface facing an image side. The rear lens group includes a third lens having positive refractive power, a fourth lens having positive refractive power, and a fifth lens having negative refractive power, wherein the fifth lens includes a concave surface facing an object side. The wide-angle lens assembly satisfies: 13.6 mm≤f−f≤25.2 mm; wherein fis an effective focal length of a lens third close to the image side and fis an effective focal length of the first lens.