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. 20, 2018
Filed:
Sep. 17, 2014
Han's Laser Technology Industry Group Co., Ltd., Shenzhen, CN;
Jiaying Li, Shenzhen, CN;
Chaoming Zhou, Shenzhen, CN;
Bo Sun, Shenzhen, CN;
Yuqing Chen, Shenzhen, CN;
Yunfeng Gao, Shenzhen, CN;
HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., Shenzhen, CN;
Abstract
A telecentric optical lens (), comprising a first lens (L) to a fifth lens (L) arranged sequentially and co-axially along the direction of transmission of the incident light ray; the first lens (L) is a plano-concave negative lens; the second lens (L) is a meniscus negative lens; the third lens (L) is a meniscus negative lens; the fourth lens (L) is a biconvex positive lens; and the fifth lens (L) is a plano-concave negative lens; the arrangement and design parameters of the first lens (L) to the fifth lens (L) of the telecentric optical lens () allow said telecentric optical lens () to achieve a telecentric effect, and simultaneously satisfy achromatic and relatively large aperture requirements.