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Dynamic controllable laser beam splitting device

A beam and laser technology, used in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of poor flexibility and fixed beam splitting, and achieve the effect of simplifying the beam splitting device and improving the efficiency of laser processing.

Pending Publication Date: 2020-01-31
XIAN MICROMACH TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] The present invention provides the laser beam splitting device with dynamically controllable beams, which solves the existing technical problems of fixed laser beam splitting and poor flexibility in the field of laser processing technology

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  • Dynamic controllable laser beam splitting device

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0023] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0024] In one of the examples, as figure 1 As shown, a dynamically controllable laser beam splitting device according to the present invention includes: a half-wave plate 2, a polarization beam splitter prism 4, a Faraday rotator 6, a spatial light modulator 8, and a focusing mirror 12; the incident beam 1 passes through the Half-wave plate 2, polarizing beam splitter 4, Faraday rotator 6, spatial light modulator 8, Faraday rotator 6, polarizing beam splitting prism 4, and focusing mirror 12, finally focusing the split beam onto the surface of workpiece 14 to be processed .

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Abstract

The invention discloses a dynamic controllable laser beam splitting device. The dynamic controllable laser beam splitting device comprises a half wavelength plate, a polarized beam splitter, a Faradayrotator, a pure phase type liquid crystal spatial light modulator and a focusing mirror; an incident beam sequentially passes through the half wavelength plate, the polarized beam splitter, the Faraday rotator, the pure phase type liquid crystal spatial light modulator, the Faraday rotator, the polarized beam splitter and the focusing mirror, and finally, the beam after beam splitting is focusedto the surface of a to-be-processed workpiece. According to the novel laser beam splitting device, damage thresholds of all optical devices are high enough, the high-energy pulse laser processing requirement is met, and by means of introduction of the spatial light modulator, high-energy laser is reprocessed after being encoded, flexibility and controllability of the beam are realized, and the beam splitting device is simplified, so that the laser processing efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of laser micromachining, and in particular relates to a dynamically controllable laser beam splitting device. Background technique [0002] Traditional laser micromachining technology usually adopts a single-focus processing method, that is, a laser beam is focused on drilling, cutting, welding, etching and other operations on the workpiece. When the processing requirements become complex, such as processing an array of holes, the single-focus processing method needs to drill holes one by one, and the processing efficiency will be very low. By splitting the laser beam and realizing parallel processing of multiple laser beams, the processing time of the workpiece can be greatly shortened, thereby improving the efficiency of laser processing. [0003] At present, most of the laser beam splitting processing devices in the market are static beam splitting devices, for example, beam splitting mirrors, diffractiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/067
CPCB23K26/067B23K26/0676
Inventor 曹志良高峰武耀霞张晓宁宋昶杨小君
Owner XIAN MICROMACH TECH CO LTD
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