Title:
INFRARED LASER ZOOM BEAM EXPANDING SYSTEM AND LASER PROCESSING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2014/012416
Kind Code:
A1
Abstract:
An infrared laser zoom beam expanding system, applied to the field of laser processing, and comprising a first lens, a second lens and a third lens. The first lens and the third lens are plane-convex plus lenses, and the second lens is a convex-concave minus lens. The first lens, the second lens and the third lens respectively comprise a first surface and a second surface, a third surface and a fourth surface as well as a fifth surface and a sixth surface. The radiuses of curvature of the first to sixth surfaces are ∞, —27, 10, 1.7, ∞, —103. The center thickness of the first to third lenses is 2, 1, 4. The outer diameters of the first to third lenses are 10, 3, 34. Proportions of the refractive indexes to the abbe numbers of the first to third lenses are 1.8:25, 1.48:68, and 1.8:25. An interval between the second surface and the third surface is 10-27. An interval between the fourth surface and the fifth surface is 119-125, a unit is mm, and a tolerance is 5%. The system may perform beam expanding on entering light by 2-16 times, which may be adaptable to laser devices with different emergent diameters and divergence angles, and improve efficiency and accuracy of laser processing.
Inventors:
LI JIAYING (CN)
ZHOU CHAOMING (CN)
SUN BO (CN)
CHEN YUQING (CN)
GAO YUNFENG (CN)
ZHOU CHAOMING (CN)
SUN BO (CN)
CHEN YUQING (CN)
GAO YUNFENG (CN)
Application Number:
PCT/CN2013/077776
Publication Date:
January 23, 2014
Filing Date:
June 24, 2013
Export Citation:
Assignee:
HANS LASER TECHNOLOGY CO LTD (CN)
HANS CNC SCIENCE & TECHNOLOGY CO LTD (CN)
HANS CNC SCIENCE & TECHNOLOGY CO LTD (CN)
International Classes:
G02B27/09
Foreign References:
| CN101414052A | 2009-04-22 | |||
| CN101211002A | 2008-07-02 | |||
| US5384657A | 1995-01-24 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
深圳中一专利商标事务所 (CN)
深圳中一专利商标事务所 (CN)
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