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. 14, 2025
Filed:
Jun. 28, 2019
Jiangxi Jingchao Optical Co., Ltd., Nanchang, CN;
Wenyan Zhang, Nanchang, CN;
Hairong Zou, Nanchang, CN;
JIANGXI JINGCHAO OPTICAL CO., LTD., Nanchang, CN;
Abstract
An imaging lens (). The imaging lens () sequentially consists of, from the object side to the image side: a first lens (L1) having refraction power, the object side surface (S1) of the first lens (L1) being a convex surface at the optic axis; a second lens (L2) having refraction power, the object side surface (S3) of the second lens (L2) being a convex surface at the optic axis; and a third lens (L3) having refraction power. The imaging lens () satisfies the condition that FNO*L>15.5, wherein FNO represents an f-number of the imaging lens (), L represents an aperture diameter of the first lens (L1), and the unit of L is mm.