摘要
本文借助于高斯括号较深入地讨论了全动型变焦距物镜的一般近轴特性，分别给出了２组元、３组元和ｎ组元全动型变焦距物镜的一般近轴分析结果。
Let βn(f,x)be the Beta operators as (1). In this paper,we proved that βn(f,x)be commututive. Moreover,in view of the equivalent of K-functional and modified module of smoothness,the Lp-approximation characterizations of Bead operator derivatives are given as following:Where Φ=x
关键词
镜头
变焦镜头
近轴分析
全动型
Beta Operators
modified moduli of smoothness
K-functional
characterization
