Design of Optical Zooming System Used for Collimating Laser Beams

A design method of optical zooming system used for collimating laser beams is intorduced.Based on the principle of Gaussian beam collimation,the classical telescope system and differential equations of the physical model system are adopted.The tracks of the varifocal group and compensating group are judged.One optical zooming system is designed to collimate the laser beams.First,with the ideal system as the initial form,additional practical parameters are introduced grandly.Second,the software is adopted to correct the optical aberrations,and the optimized satisfactory zooming system.This system has the tight structure,accurate collimation and low cost.