35～7Omm/F3.5～4.8变焦镜头的优化设计

传统的镜头光学设计多半是在一初始模型(如专利)的基础上作一定程度的人工修改。然而借助光学设计软件的新技术,可以对初始模型作较大的改动,使之脱离原有的模式而得到一个更优化的结果。本文以一个35～70mm/F3.5～4.8变焦镜头的光学设计为例,简要地叙述了这一过程。

Optimal Design of a 35～70mm/F3.5-4. 5Zoom Lens

The traditional optical design is mostly done by manual modification to a certain degree, based on an initial model (e. g. patent). However, by means of new technique of optical design software, the initial model can be greatly changed to obtain more optimum result. In this article, the optical design of a 35～70mm/F3.5-4.5 zoom leas is taken as an example to show this process in brief.