Laser energy attenuator and analysis equipment

Abstract

The invention relates to the technical field of light beam analysis, and particularly discloses a laser energy attenuator and analysis equipment. The energy attenuator is used for attenuating energy of a laser beam and comprises an attenuator frame provided with a light path inlet and a light path outlet, the attenuator frame is provided with a first prism, a second prism and a first light absorption block, the first prism comprises a first side face, the other faces of the first prism are all shielded, the second prism comprises a second side face, and the other faces of the second prism are all shielded; and the first side face is located on one side of the light path inlet, the second side face is located in the light emitting direction of reflected light of the first side face, the light path inlet and the first frame hole are located on the two sides of the first prism respectively, the first light absorption block is used for absorbing refracted light refracted from the first prism and penetrating through the first frame hole in the attenuator frame, and the light path outlet is formed in the light emitting direction of the reflected light of the second side face. According to the prism shading design of the energy attenuator, unnecessary light reflection and scattering are avoided, interference of stray light is avoided, and the accuracy of subsequent analysis results is guaranteed.

Description

technical field [0001] The invention relates to the technical field of beam analysis, in particular to a laser energy attenuator and analysis equipment. Background technique [0002] In the laser beauty industry, in order to understand the quality of the laser beam emitted by the laser treatment equipment, such as beam uniformity, spot size, energy distribution, etc., it is necessary to use a beam analyzer for detection and analysis. Moreover, since the laser energy directly emitted from the laser is too strong to be directly received by the CCD (Charge-coupled Device, photosensitive element) sensor of the beam analyzer, it needs to undergo laser energy attenuation before entering the beam analyzer. [0003] In the prior art, a wedge-shaped lens is often used for two reflections to separate the light beam, but the wedge angle of the wedge-shaped lens is usually relatively small, and the common angle value is about 10 degrees. After the laser is reflected by the inclined sur...

AI Technical Summary

Problems solved by technology

After the laser is reflected by the inclined surface of the lens and the right-angled surface, the separation angle between the beams reflected from each surface is not large, and the formed light spots affect each other, which affects the measurement of the beam analyzer; at the same time, this method cannot achieve shading effect, it is difficult to ensure that other unnecessary light is reflected or refracted into the attenuation device

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