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文摘
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补偿器是大口径非球面主镜补偿检验的关键元件。随着主镜口径和相对口径的增大，由于高阶像差的影响，补偿器的优化结果与初始结构偏离也相应增大，此时若能用法线模拟反射面代替主镜，将检验时的自准光路简化为单次通过补偿器的光路，则优化过程将大大简化，且易获得好的补偿效果。用法线模拟反射面代替主镜时，光源位于主镜顶点曲率中心，模拟面的系数由主镜参数决定。设计结果表明，这种模拟面对F／1的主镜法线都有很好的符合精度。 |
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其他语种文摘
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Compensator is the core element for the null testing of primary mirror. With the relative aperture of primary mirror increasing, the optimized result of compensator moves further away from the preliminary design due to the effect of high order aberration; the optimization process is simplified and good result can be achieved more probably through replacing the primary with dummy reflecting surface （DRS） -a surface imitates the normal rays of the primary, and making autostigmatic null corrector to single-pass corrector. The light source is located at the center of vertex curvature of the primary, and the coefficients of dummy surface are deduced from primary mirror. Result shows an accurate approximation for the primary as fast as F/1. |
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来源
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光电工程
,2006,33(6):115-117 【核心库】
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关键词
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补偿器
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法线模拟反射面
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非球面镜
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优化设计
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地址
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中国科学院光电技术研究所, 四川, 成都, 610209
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1003-501X |
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学科
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机械、仪表工业 |
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基金
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国家973计划
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文献收藏号
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CSCD:2484156
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