Time and focus dividing device and method based on scanning galvanometer

Abstract

The invention discloses a time and focus dividing device based on a scanning galvanometer. The device comprises a first high-reflectivity mirror, a second high-reflectivity mirror, the galvanometer, a focus dividing device, a light splitting cube and an adjustable lens group which are sequentially arranged, the focus dividing device includes a first focus dividing device and a second focus dividing device which are parallelly arranged, the first focus dividing device comprises a third high-reflectivity mirror, a first attenuator, a fourth high-reflectivity mirror and a lens group which are sequentially arranged, and the second focus dividing device comprises a fifth high-reflectivity mirror and a second attenuator which are sequentially arranged. By the aid of the galvanometer rather than a ridge light splitter for splitting light, two focuses with conveniently adjustable performances and positions are formed in a light path direction by matching the attenuators, the adjustable lens group and the light splitting cube, and automation control is more conveniently realized. The invention further discloses a method for dividing time and focuses by the device, and the two focuses with the conveniently adjustable performances and positions can be conveniently and simply formed in the light path direction.

Description

technical field [0001] The invention relates to a device and a method for forming a light beam, in particular to a device and a method for time-dividing and focusing by using a scanning vibrating mirror. Background technique [0002] Laser processing technology is a technology that uses the characteristics of the interaction between the laser beam and the material to cut, weld, surface treat, drill, micro-process, and use it as a light source to identify objects, etc., for materials (including metals and non-metals). The largest field is laser processing technology. Laser technology is a comprehensive technology involving multiple disciplines such as light, mechanics, electricity, materials and testing. Traditionally, laser processing technology. Including cutting, welding, surface treatment, drilling, marking, scribing, micro-carving and other processing techniques. [0003] In order to meet the needs of various purposes, the position and quality of the focus should be co...

AI Technical Summary

Problems solved by technology

[0007] From the perspective of the roof splitter, the double focus is on a plane perpendicular to the direction of the light path, and they are not independent of each other, so the energy and size of each focus cannot be controlled independently

From the perspective of the double optical path method, the two focal points are on the plane perpendicular to the direction of the optical path, the positions of the two focal points cannot be changed accordingly, and the degree of automation is low.

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