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:
Jan. 26, 2021
Filed:
Feb. 18, 2019
Genius Electronic Optical (Xiamen) Co., Ltd., Fujian, CN;
Genius Electronic Optical (Xiamen) Co., Ltd., Fujian, CN;
Abstract
An optical imaging lens includes a first lens element to a fourth lens element from an object side to an image side in order along an optical axis, and each lens element has an object-side surface and an image-side surface. A periphery region of the image-side surface of the first lens element is convex, the third lens element has positive refracting power, the fourth lens element has positive refracting power, and a periphery region of the object-side surface of the fourth lens element is concave. TTL is a distance from the object-side surface of the first lens element to an image plane along the optical axis, Tis a thickness of the second lens element along the optical axis, and the Abbe number of the second lens element, the third lens element and the fourth lens element is υ2, υ3 and υ4 respectively to satisfy υ3+υ4−υ2≤40.000 and TTL/T≤8.000.