ERROR CORRECTOR FOR COLLIMATION LASER BEAM ANGLE

The utility model discloses an error corrector for laser beam angle errors. The utility model is used on the front end of the beam outlet of a Laser measurer, and is composed of an upper wedge glass seat and a lower wedge glass seat. A wedge angle of the wedge glass in the wedge glass seat can be selected for use as required, azimuth scales are arranged outside the wedge glass seat, and when in operation, the beam angle error can be eliminated according to the change of the azimuth. The utility model brings conveniences for the correction operation of beam collimation, because the upper and the lower wedge glass seats can rotate entirely and can also mutually rotate arbitrarily.