Laser beam expander adjusting device

Abstract

The invention discloses a laser beam expander adjusting device. The device comprises an antiskid base, wherein the anti-skid base is fixedly provided with a spiral height adjusting frame, the spiral height adjusting frame is connected with an adjusting tube through an adjusting part, the upper end of the adjusting tube is connected with an adjusting rod, the two ends of the adjusting rod are detachably provided with two spiral bore diameters of beam expanding lenses and beam expanding lens frames, and the beam expanding lens frames are used for connecting the beam expanding lenses which cannotbe directly connected to the adjusting rod. The laser beam expander adjusting device has the advantages that the structure is simple, the effect is obvious; the convenient and accurate adjustment ofthe beam expanding lens height can be achieved by adjusting an adjusting screw of the spiral height adjusting frame; the assembly deviation of a currently common beam expander and a light source can be effectively corrected by adjusting the rotation direction of the adjusting screw and fine adjustment; the adjusting rod and the beam expanding lens frames can be assembled on a beam expanding lens with any type, the adjustable range of the beam expanding lens height is large, and the application range is large.

Description

technical field [0001] The invention relates to a laser application auxiliary device, which belongs to the field of optical instruments, in particular to a laser beam expander adjustment device. Background technique [0002] At present, there are usually two kinds of laser beam expander adjustment devices widely used in scientific research and teaching experiments: one is composed of a beam expander lens, an adjustment rod, an adjustment tube and a base, and the adjustment rod can be adjusted by loosening or locking the screw. The length of the tube and the adjustment tube embedded in the cylindrical tube of the base realizes the adjustment of the height of the beam expander lens; another laser beam expander adjustment device is composed of a beam expander lens, a telescopic rod, and a base. The height of this laser beam expander The adjustment is done by the telescopic adjustment of the telescopic rod. Since the connection between the adjustment rod or telescopic rod and t...

AI Technical Summary

Problems solved by technology

Since the connection between the adjustment rod or telescopic rod and the beam expander lens is completed by screwing the screw on the rod into the threaded hole below the beam expander lens, the sizes of the screw and the threaded hole in the commonly used laser beam expander adjustment device are corresponding , the beam expander lens cannot be connected to other threaded holes, so that the choice of beam expander lens is limited; the aperture of the beam expander lens is usually small, resulting in frequent deviations in assembly, so the optical axis of the beam expander lens is often difficult to level, and the laser light source The emitted laser beam is thin and often has a certain inclination angle to the horizontal direction. These reasons lead to the fact that in most cases, although the incident laser light hits the center of the beam expander lens, the outgoing light expanded by the beam expander lens deviates from the optical device behind it. Many, it is often necessary to repeatedly adjust the height of the beam expander lens in a small range, so that the expanded laser beam can be irradiated on the optical device, which brings inconvenience and difficulty to the experimental operation. The reason is the height adjustment accuracy of the adjustment rod or telescopic rod. Low, it is difficult to operate accurately by hand

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