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本文讨论了四个问题。推导了一套柱面的空间光线追迹公式。提出了偏轴系统理想象面位置和象高的计算方法。提供了瞳位和瞳形的处理方法。推荐一个适应性广,使用方便的非球面方程。本程序以光束的会聚度作为象质的评价函数。
This article discusses four issues. Derived a cylindrical space ray tracing formula. The calculation method of ideal image plane position and image height of off-axis system is proposed. Provide pupil and pupil treatment. Recommend a wide adaptability, easy to use aspheric equation. The procedure to the convergence of the beam as the quality of the evaluation function.