根据初级像差理论，分析了非球面的位置、初始结构参数的求解规律。
According to the primary aberration theory, the position of aspheric surface and the solution law of initial structure parameters were analyzed.
另外，非球面使光学设计中有更多的可调参数，以满足设计不同光学系统的需要。
In addition, the aspheric surface enables to have more adjustable parameters in optical design to satisfy different optical systems.
只要已知被加工曲面的参数表达式，就可运用点涉法在该曲面上生成非球面刀的数控加工轨迹。
As soon as the parametric representation of the sculptured surface is known, the NC machining path on it is determined for the nonspherical cutters.
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