【摘要】 采用有限元分析与光学设计相结合的方法,构建光束在光学头罩热窗口中传输的数学模型,研究光学头罩气动热环境下光学传输理论和计算方法.通过光学追迹程序,分析了折射率分布不均匀的窗口对目标成像光束的影响.研究结果表明针对形变情况下折射率不均匀分布的窗口中光线追迹程序可行.所得结果可用于后续成像系统的研究.更多还原

【Abstract】 The mathematical model of light beam transmission across the optical widows in the aerodynamic thermal environment was built using the method of the finite element analysis and optical design.The optic transmission theory and computational method were studied.The influence of the optical window with non-uniform index to the object imaging was analyzed through the ray-tracing program.The programming result indicates that the ray-tracing program of optical window is feasible.The research is useful for the successive imaging work.更多还原