Laser beam-expanding absorption device

Abstract

The invention discloses a laser beam-expanding absorption device, belongs to the technical field of lasers, and aims at solving the technical problems that a reflecting surface in a conical cavity is destroyed, the laser reflecting direction is uncontrollable and the cooling effect is poor when the power density of the laser is relatively high in the prior art. The laser beam-expanding absorption device comprises an absorption cavity, a conical reflector, a magnetic meter stand, a beam expanding reflector II, a beam expanding reflector I and cooling fans. The conical cavity is combined with the beam-expanding absorption cavity; the power density of the laser can be reduced through beam expansion; and the laser can also be absorbed through the conical cavity, so that overflow of the laser is avoided to a great extent. In addition, a reflecting gap of the conical cavity is relatively small, so that the condition that the laser is completely absorbed by the absorption cavity finally after being reflected for a plurality of times is ensured.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a laser beam expanding and absorbing device. Background technique [0002] Laser technology is used in civil fields such as material processing, laser marking, laser printing, laser scanning, laser ranging, laser storage, laser display, lighting, laser medical treatment, as well as military fields such as laser targeting, laser guidance, laser night vision, and laser weapons. have been widely applied. The good application prospect of laser technology has attracted a large number of researchers to study it, and the research process will inevitably require a large number of experiments. [0003] During the experiment, if the laser beam is not strictly controlled and restricted, the laser beam may directly irradiate the experimenter's body, or hit some objects, reflect several times, and finally irradiate the experimenter's body. For lasers, human eyes are very fragile,...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a laser beam expander absorbing device, which solves the problems existing in the prior art that when the laser power density is high, the reflection surface inside the tapered cavity will be destroyed, the laser reflection direction is uncontrollable, and the heat dissipation effect is not good. technical problem

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