双反射光学系统遮拦比的研究

Study of Obstruction Ratio in Double Reflection Optical System

本文从夫朗禾费积分公式出发,论述了不同遮拦比的双反射光学系统I_0(环)/I_0(孔)的计算与测试方法,并通过计算和测量获得了有实用价值的数据。从而,为某些红外光学系统设计合理选取遮拦比提供了依据。

Based on frauhofer diffraction integral formula, the calculation and testing method of I0 AN-NULATION)/I0(aperture)for different obstruction ratio of double reflection optical system are described in this paper. Many practical data are acquired through calculations and test, which provide the basis for the selection of obstruction ratio in the design of some infraredo ptical sys-tems.