Specifications: figure and finish are not enough
Specifications: figure and finish are not enough
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规格：身材和光洁度不够
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Robert E. Parks
中科院分区：
文献类型：
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作者：
Robert E. Parks
几个例子给出了光学显然只指定的数字和完成。虽然这些光学器件符合规格，但它们不能产生良好的图像。性能不佳的推测原因是缺乏中空间频率粗糙度的规范。我们表明，一个合理的规格可以应用于使用的概念，结构函数，一个数学上简单的函数很容易计算出的干涉相位数据在每个像素。一个例子波前是用来显示如何规范可以从典型的图形和完成规范，并包括在中间空间频率区域的粗糙度信息。
Several examples are given of optics apparently specified only by figure and finish. Although these optics met the specifications they did not produce good images. The presumed reason for the poor performance was the lack of a specification for mid-spatial frequency roughness. We show that a reasonable specification can be applied using the concept of a structure function, a mathematically simple function easily calculated from interferometric phase data at each pixel. An example wavefront is used to show how the specification can be developed from typical figure and finish specifications and include information about roughness in the mid-spatial frequency region.