For solving the difficulties of machining aspheric optical parts,a new principle of normal equidistance line offsetting methods is put forward,machining method for rotated conicoid.

• 为了解决非球面光学零件加工难的问题,提出了法线等距离线法加工二次旋转曲面的新原理,并对其理论、成形机理及机床结构原理进行了研究,进而说明了该技术的优点。