The invention discloses a
light beam homogenizing and shaping method based on an aspheric
cylindrical lens group, and relates to the technical field of
light beam shaping, and the method comprises the steps: constructing an optical
system for
laser beam homogenizing and shaping, the optical
system comprises a front shaping aspheric plane-concave
cylindrical lens and a rear shaping aspheric plane-concave
cylindrical lens, the invention provides a
light beam homogenizing and shaping method based on an aspheric cylindrical lens group, which can be used for independently shaping
laser in a single direction without influencing the original intensity distribution of light spots in a direction vertical to the
laser. Two aspheric cylindrical lens groups which are orthogonally arranged are combined, circular
Gaussian light spots are shaped into rectangular light spots with uniformly distributed
light intensity in the X direction and the Y direction respectively, the method has the advantages of ideal shaping effect, low
energy loss, simple use structure and the like, target aspheric cylindrical lens parameters obtained by the method are even-order aspheric
surface type data, and the method is suitable for large-scale popularization and application. The method can be directly applied to actual lens
processing.