Using Precision Molded Aspheres
                                The power of using aspheric lenses has been known for several centuries, starting with the formulas invented by Renee Descartes in the early 1600s. Although it was known that aspheric lenses had major advantages over their spherical counterparts, the cost and complexity of manufacturing them has lim                            
                            
                            
                            
                        
                            下载地址
                        
                    
                            用户评论
                        
                    