Optical lens and its laser processing equipment
An optical lens and laser processing technology, applied in the field of optics, can solve the problems of poor imaging quality and design difficulties of optical lenses, and achieve the effects of high laser energy concentration, easy design, and high-quality imaging and marking
Active Publication Date: 2020-08-18
HANS LASER TECH IND GRP CO LTD
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Problems solved by technology
[0004] The invention provides an optical lens, aiming to solve the problem of poor imaging quality and difficult design of the optical lens of high-power laser
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] In the optical lens provided by the embodiment of the present invention, the material of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4 is made of fused silica, the optical lens can transmit high-power laser, and pass through four The design of the shape and relative position of the lens effectively corrects astigmatism and distortion. The high concentration of laser energy realizes high-quality imaging marking and improves the imaging quality. The lens has a simple structure, is easy to design, and is suitable for being widely used in various laser processi...
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Abstract
The invention belongs to the technical field of optics, and provides an optical lens. The optical lens includes a first lens, a second lens, a third lens and a fourth lens arranged sequentially according to the incidence direction of light. The first lens is a negative biconcave lens. The second lens is a positive meniscus lens. The third lens is a positive meniscus lens. The fourth lens is a positive biconvex lens. The first lens, the second lens, the third lens and the fourth lens are all made of fused quartz. The focal length of the optical lens is 160mm. Through the design of the shapes and relative positions of the four lenses, astigmatism and distortion are effectively corrected. The laser energy is highly concentrated. High-quality imaging marking is realized. The imaging quality isimproved. The optical lens is simple in structure and easy to design, and can be widely used in various laser processing equipment. In addition, a piece of laser processing equipment is provided.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to an optical lens and laser processing equipment thereof. Background technique [0002] After rapid development in recent years, ultraviolet lasers have developed from the initial 0.2w to 0.5w to the current laser power density higher than 10w. Due to the improvement of laser power, the application field of ultraviolet laser is not only limited to product identification, but also widely used in wafer cutting, flexible circuit board cutting, thin plate cutting and other fields. [0003] With the continuous improvement of laser power, higher requirements are put forward for the corresponding optics and optical path. The lens made of the original optical glass can no longer withstand such a high-power ultraviolet laser and cannot be applied to the cutting field. There are not many crystal materials that can pass through this short-wavelength laser. At present, the only ideal materi...
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IPC IPC(8): G02B13/00B23K26/06
CPCB23K26/0648G02B13/0015
Inventor 陈玉庆彭金明周朝明高云峰
Owner HANS LASER TECH IND GRP CO LTD