Increased depth of field with phase-only filters: ambiguity function (Invited Paper)
Increased depth of field with phase-only filters: ambiguity function (Invited Paper)
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DOI：
10.1117/12.605282
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发表时间：
2005-06
期刊：
影响因子：
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通讯作者：
A. Castro;J. Ojeda-Castañeda
中科院分区：
文献类型：
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作者：
A. Castro;J. Ojeda-Castañeda
我们讨论模糊函数的对称性。接下来，我们将其用作增加成像系统景深的设计工具。我们提出了一系列反对称纯相位掩模，可扩展光学系统的景深。我们计算了几个具有聚焦误差的光学传递函数，并报告了使用我们提出的纯相位滤波器可以实现的图像的数值模拟。
We discuss the symmetry properties of the Ambiguity Function. Next, we use it as a design tool for increasing the depth of field of imaging systems. We present a family of anti-symmetric phase-only masks that extend the depth of field of an optical system. We compute several Optical Transfer Functions with focus errors, and we report numerical simulations of the images that can be achieved using our proposed phase-only filters.