标准镜头的光学设计

本文叙述了单反相机中常用的标准镜头的结构形式及设计方法,提出了像差校正的重点以及在校正过程中应注意的若干问题。文章最后给出四个有一定参考价值的设计实例,提供相应的结构参数,像差数据及传递函数值。其中f′50mm/F2及f′50mm/F1.9全部用国产普通玻璃设计而成,f′50mm/F1.7只用一片镧玻璃,成本较低,成像质量较好,有较高的实用价值。

Optical design of standard lens

This paper has presented the design method and structure of commonly used standard lens of SLR camera, proposed the important point of imagine aberration correction and some noted points during the correction procedure. Lastly four design examples with certain consulting value, imagine aberration date and transfer function value, are provided. In the referred examples, f'50mm/F2 and f'50mm/F1.9 are designed with china-made ordinary glass, f'50mm/F1.9 has only employed a piece of Lanthanum series glass, therefore, the cost is low, and imagine quality and the practical value are high.