据说最近发展了一种精密加工光学表面的方法,比普通方法迅速,成本也低。这种新方法称为离子束成形法,是由美帝科耳斯门(Kollsman)仪器公司研究成功的。光学仪器和望远镜中的非球面透镜的手工生产可用这种新方法来代替。目前,这些高精度透镜的生产依靠手工,速度低,成本高,而且能担任这种工作的技术工人也越来越少。由于非球面透镜不易制造,透镜设计者也就避免使用它们。离子束成形法可望给设 It is said that recently a method of precision machining of optical surfaces has been developed that is faster and less costly than conventional methods. This new method, called ion beam forming, was successfully studied by Kollsman Instruments. This new method can be used instead of manual production of aspheric lenses in optical instruments and telescopes. Currently, these high-precision lenses rely on hand-made, low-cost, high-cost lenses and fewer and fewer skilled workers for this job. As aspherical lenses are not easy to manufacture, lens designers also avoid using them. Ion beam forming method is expected to give