摘要：A new aspheric surface pre-collimation lenses system for the optical antenna of three-dimensional （3D） imaging of lidar.has been optimally designed and simulated by optical design software *** kinds of aspheric surfaces spherical lenses including the sections of spherical,elliptical,hyperbola,and parabola have been *** optical system,including the elliptical cylinder lenses collimation and the optical antenna,can be realized less than 5 rad collimation angle for dot source semiconductor laser beam.