Laser beam splitting device and laser marking device

Abstract

An embodiment of the invention belongs to the technical field of laser marking, and discloses a laser beam splitting device and a laser marking device. The laser beam splitting device includes a beamexpander, a first half-wave plate, a first beam splitting flat plate, a second half-wave plate, a second beam splitting flat plate, a third half-wave plate, a third beam splitting flat plate and a light receiving plate. A total light beam is incident from the beam expander and penetrates through the first half-wave plate to be subjected to beam splitting through the first beam splitting flat plateto form a first processing light beam and a first split light beam; the first split light beam penetrates through the second half-wave plate to be subjected to beam splitting through the second beamsplitting flat plate to form a second processing light beam and a second split light beam; the second split light beam penetrates through the third half-wave plate to be subjected to beam splitting through the third beam splitting flat plate to form a third processing light beam and a compensation light beam; and the compensation light beam is diffused by a light receiving plate. The laser beam splitting device and the laser marking device in the embodiment better improve the use efficiency of a single laser device.

Description

technical field [0001] The embodiment of the invention belongs to the technical field of laser marking, and relates to a laser spectroscopic device and laser marking equipment. Background technique [0002] With the wide application of laser marking technology, improving the use efficiency of a single laser is conducive to reducing the manufacturing cost of laser marking equipment. [0003] The number of processing beams output by the laser marking equipment is consistent with the number of lasers on the laser marking equipment. Multi-station laser marking equipment is often equipped with multiple lasers, and the use efficiency of a single laser is low. The laser beam splitting device can split a laser beam into multiple laser beams. Part of the laser marking equipment has used a laser beam splitter to split a beam of laser output from the laser into multiple processing beams, but the laser beam splitter used in the prior art is difficult to ensure that the power of each p...

AI Technical Summary

Problems solved by technology

Part of the laser marking equipment has used a laser beam splitting device to split a beam of laser output from the laser into multiple processing beams, but the laser beam splitting device used in the prior art is difficult to ensure that the power of each processing beam after beam splitting is consistent, and also Does not have the function of power compensation for a single processing beam

[0004] In the process of researching the present invention, the inventor found that the use efficiency of a single laser on the laser marking equipment in the prior art is low, and in addition, the single laser on the laser marking equipment either does not use a laser beam splitter to split the light, or uses a laser splitter It is difficult for the device to ensure that the power of each processing beam is consistent after beam splitting

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