Laser micro-processing method and device based on liquid crystal mask technology

A technology for microfabrication and masking, applied in auxiliary devices, laser welding equipment, metal processing equipment, etc., can solve the problems of inability to process, difficult to make masks, laser diffraction phenomenon, etc., and achieve the effect of good surface microscopic topography

Inactive Publication Date: 2006-04-26
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the processing line is very small, it is difficult to make the mask and diffraction will occur when the laser passes through the mask, which will reduce the processing quality or even make it impossible to process.

Method used

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  • Laser micro-processing method and device based on liquid crystal mask technology

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Embodiment Construction

[0018] The details and working conditions of the specific device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] The present invention carries out the device of laser surface micromachining and comprises laser generator control device 1, laser generator 2, astigmatism system 4, liquid crystal display screen 5 and display screen control device 6, focusing system 7 and workpiece fixture system and control with laser generator A digital control system 12 and a computer 13 connected to the device 1 , the display screen control device 6 , and the workbench control device 11 . Among them, the astigmatism system 4 is composed of a group of concave lenses and a convex lens with a large curvature; the focusing system 7 is composed of a group of convex lenses and a concave lens with a large curvature; the workpiece fixture system includes a workpiece 8, a fixture 9, a workbench 10 and a workbench control device 1...

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Abstract

The invention relates to a method and device based on the liquid crystal technology laser surface trickle process in the field of surface trickle process. The device is formed by a laser generator and light guiding system, a laser generator controller, a light diffused system, a liquid crystal display screen and display controller, a focus system and unit holder system.

Description

Technical field: [0001] The invention relates to the field of surface microprocessing, in particular to a method and device for laser microprocessing based on liquid crystal mask technology. Background technique: [0002] The common laser surface micromachining technology is to irradiate the surface of the workpiece with a microscopic laser beam, so that the material at the irradiated part is vaporized and evaporated to form certain pits. The workpiece is moved according to a certain trajectory through the workbench control device, and the surface of the workpiece is processed point by point, and finally the surface of the workpiece reaches the required microscopic shape. On the one hand, this processing method is inefficient, on the other hand, it is necessary to compile corresponding programs according to the arrangement of different surface processing points in order to control the movement of the workpiece according to a certain trajectory. [0003] The closest techniqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/18B23K26/06B23K26/08B23K26/362B23K37/053
Inventor 张永康顾永玉
Owner JIANGSU UNIV
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