Triple light field shaping annular free Gaussian laser light field regulation shaping lens

The utility model provides an annular free Gaussian laser light field regulation shaping lens for three-time light field shaping, which comprises a cylindrical shaping lens matrix, a spherical concave part is arranged at the geometric center of the upper surface of the matrix, a reflecting film is plated on the non-spherical concave part area of the upper surface, and the reflecting film is coated on the concave part of the matrix. The peripheral side of the matrix is provided with an arc-shaped tangent part, the geometric center of the lower surface of the matrix is provided with an aspheric concave part, and the area outside the aspheric concave part of the lower surface is plated with a reflecting film. According to the utility model, through the spherical concave part, an effect of primary divergence of an incident Gaussian beam is achieved, and primary light field regulation and control are achieved; the aspheric concave part plays a role in reflecting internal light rays, so that secondary light field r