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:
Aug. 22, 2017
Filed:
Oct. 31, 2012
Han's Laser Technology Co., Ltd., Guangdong, CN;
Han's Cnc Science and Technology Co., Ltd, Guangdong, CN;
Jiaying Li, Shenzhen, CN;
Chaoming Zhou, Shenzhen, CN;
Bo Sun, Shenzhen, CN;
Yunfeng Gao, Shenzhen, CN;
HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., Shenzhen, CN;
HAN'S CNC SCIENCE AND TECHNOLOGY CO., LTD, Shenzhen, CN;
Abstract
An Fθ lens and a laser processing device for far-infrared laser processing are provided. The Fθ lens for far-infrared laser processing comprises a first lens (L), a second lens (L) and a third lens (L) which are coaxially arranged successively along a transmission direction of incident light beams, wherein the first lens is a negative meniscus lens, and the second lens and the third lens are positive meniscus lenses; and all the middle parts of the first lens, the second lens and the third lens protrude towards the transmission direction of incident light beams. The Fθ lens can improve the imaging quality and the resolution distance, effectively calibrate the astigmatism and distortion of the lens, reduce the influence of high-order aberrations, and has a high degree of energy concentration of laser focus points and high processing accuracy, thereby meeting the requirements for cutting or drilling. The Fθ lens is miniaturized, so that the volume of the lens is effectively controlled, and costs are reduced.