Barnes W P
Itek Corporation, Lexington, Massachusetts02173, USA.
Appl Opt. 1966 May 1;5(5):701-11. doi: 10.1364/AO.5.000701.
The effects of the major features of an aerospace thermal environment on the principal components of large-aperture photographic catadioptric systems are considered. First approximation solutions to the focal shift and on-axis wavefront aberration produced by heat fluxes in windows (or corrector plates) are presented. The effects of axial heat fluxes and uniform temperature changes on mirror structures representative of current practice in lightweight-mirror technology are examined, and first approximations to the deformations of simple slab mirrors, Kanigen-coated metal mirrors, and sandwich-plate construction are derived. Some conclusions on the comparative utility of Kanigen-coated beryllium mirrors and solid or egg-crate fused-silica mirrors are drawn.
考虑了航空航天热环境的主要特征对大孔径折反射式摄影系统主要部件的影响。给出了窗口（或校正板）中热通量产生的焦移和轴上波前像差的一阶近似解。研究了轴向热通量和均匀温度变化对代表当前轻质镜技术实践的镜结构的影响，并推导了简单平板镜、卡镍合金涂层金属镜和夹层板结构变形的一阶近似。得出了关于卡镍合金涂层铍镜与实心或蜂窝状熔石英镜相对效用的一些结论。
