Methods of generating high-quality flattop laser lines with various fan angles

Methods of generating high-quality flattop laser lines with various fan angles are proposed. The basic module consists of an isosceles triangle prism and a glass rod laser diode line generator. The prism is placed in the optical path of the laser line, breaks the laser line into two sections, transposes and overlaps the two sections, and thereby forms a flattop laser line. Cylindrical lenses with different focal lengths can be placed in front of the basic module to achieve flattop laser lines with various fan angles.