变焦距镜头电子变焦模式

Electronic Zoom Pattern in Zoom Lenses

提出一种全新的高斯光学算法,对电子变焦模式的变焦距系统高斯光学参数的计算方法进行研究.通过求解超越方程(组)及三次样条函数插值法计算凸轮曲线,处理了与自动调整物距(调焦)相关联的连续变焦模式以及与其无关的独立变焦模式,实现了任一变焦方式的高斯光学参数的计算.该算法基于高斯光学乘加递推算法,采用多项式,避免了有理函数的运算,比高斯括号法简明方便,有利于简化电子变焦模式变焦系统镜头参数的计算.

A new method of Gaussian optics computation for zoom lenses applying electronic zoom patterns is presented. The method takes care of both the automatic adjustment of focal point of arbitrary object distance with the relevant continuous zooming pattern, and the independent zooming pattern, where the cam lines are given by using transcendental equations and cubic spline interpolation. It can accomplish the computation of Gaussian optics parameters for arbitrary zoom patterns of electronic and mechanical zoom design.