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. 05, 2019
Filed:
Aug. 29, 2014
Han's Laser Technology Industry Group Co., Ltd., Shenzhen, Guangdong, CN;
Jiaying Li, Guangdong, CN;
Chaoming Zhou, Guangdong, CN;
Bo Sun, Guangdong, CN;
Yuqing Chen, Guangdong, CN;
Yunfeng Gao, Guangdong, CN;
HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., Shenzhen, Guangdong, CN;
Abstract
An optical lens comprising a first lens (L), a second lens (L), a third lens (L), a fourth lens (L), and a fifth lens (L) that are sequentially arranged on a common optical axis in the transmission direction of an incident light. Both the first lens (L) and the fifth lens (L) are negative meniscus lenses. Both the second lens (L) and the third lens (L) are positive meniscus lenses. The fourth lens (L) is a biconvex lens. The optical lens is applicable in an optical system of a laser processing apparatus. When an employed processing wavelength is different from a monitoring wavelength, imaging color differences in a monitoring system can thus be eliminated, specifically, when a wavelength in the infrared range is employed as a laser processing wavelength while a red wavelength serves as the monitoring wavelength, improved imaging effects are provided in the monitoring system, thus ensuring the quality of laser processing.