AIMLASER
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Laser pointer beam expander is a lens assembly that can change the diameter and divergence Angle of laser beam. The laser beam emitted from the laser has a certain divergence Angle. For laser processing, only by adjusting the beam expanding mirror to make the laser beam into a collimating (parallel) beam can we obtain a fine high power density spot by using the focusing mirror. In laser ranging, it is necessary to improve the laser collimation to the maximum extent by beam expanding mirror in order to get the ideal distance measurement effect. The beam diameter can be changed by the beam expanding mirror so that it can be used in different optical instruments and equipment. When the beam expanding mirror is used with the spatial filter, the asymmetrical beam distribution can be changed into symmetrical distribution, and the light energy distribution is more uniform. Laser Beam Expander of the Basic Knowledge