Laser internal engraving apparatus for transparent material

Abstract

The invention provides a kind of laser inside carving device of transparent material. It includes laser instrument, ray-expanding mirror, the first shaking mirror, the second shaking mirror, F- Theta focusing mirror and computer. The laser instrument contains full-reflecting mirror, sound and light Q-adjusting device, semiconductor pump module, frequency doubler crystal and exporting mirror. The full-reflecting mirror is plated with fundamental frequency full-reflecting membrane layer or is plated with fundamental frequency and multiplier frequency doule full-reflecting membrane layer. The exporting mirror is plated with membrane layer whose throughing ratio to fundamental frequency light is 4%~10% and to multiplier frequency light is full. The laser instrument produces 1~10 kilohertz Q-adjusting multiplier frequency laser pulse output. The computer controls the first shaking mirror and the second shaking mirror to separately move swiftly in X, Y direction, thus makes the laser beam that has been through the ray-expanding mirror to move in scanning in XY direction, and controls one dimension electrical controlling displacement platform to realize the moving in Z direction of the focusing mirror and the transparent material. The advantage of the invention is that its laser outputing mode is good, light power is steady and efficient, the carving ratio is swift, and is suitable for the carving of transparent material with big breadth.

Description

technical field [0001] The invention relates to a laser internal engraving device for transparent materials. Background technique [0002] Internal engraving devices for ordinary glass and other transparent materials have become an emerging development direction for laser internal engraving. At present, the laser internal engraving device is mainly used for crystal quartz glass. The disadvantages of this laser internal engraving device are: the pulse laser pumped by the flash lamp is mainly used, the beam quality is poor, the explosion point is large after focusing, and the engraved image is not fine; Q-switching, the laser pulse repetition frequency is low (only about 100 Hz), and the speed is slow, so it is not suitable for internal engraving of large-format ordinary glass and other transparent materials; due to the use of flash lamp pumping, the life of the laser pump source is short, and the equipment Trouble in maintenance and use. Therefore, the current laser engravi...

AI Technical Summary

Problems solved by technology

At present, the laser internal engraving device is mainly used for crystal quartz glass. The disadvantages of this laser internal engraving device are: the pulse laser pumped by the flash lamp is mainly used, the beam quality is poor, the explosion point is large after focusing, and the engraved image is not fine; Q-switching, the laser pulse repetition frequency is low (only about 100 Hz), and the speed is slow, so it is not suitable for internal engraving of large-format ordinary glass and other transparent materials; due to the use of flash lamp pumping, the life of the laser pump source is short, and the equipment The maintenance and use of the

Therefore, the current laser engraving products are limited to a limited number of small handicrafts, which limits the expansion of the use of laser transparent material internal engraving

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