写入空间光调制器的菲涅耳透镜的分数像素平移。
Fractional pixel translations of Fresnel lenses written onto spatial light modulators.
作者信息
Davis J A, Field A M, Cottrell D M
出版信息
Appl Opt. 1995 Feb 10;34(5):790-2. doi: 10.1364/AO.34.000790.
PMID:21037596
Abstract
The focal point of a lens written onto a spatial light modulator can be translated laterally by displacement of the central location of the encoded lens function. We show that the beam can be translated by a fraction of a pixel, in contrast to the expected single-pixel limitation. This increases the positional sensitivity obtainable with this technique. Experimental results are presented.
摘要
通过对编码透镜函数中心位置进行位移，可以横向平移写入空间光调制器的透镜焦点。我们表明，与预期的单像素限制相反，光束可以平移不到一个像素的距离。这提高了该技术可获得的位置灵敏度。文中给出了实验结果。
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