Fast and continuous recording of refreshable holographic stereograms
Fast and continuous recording of refreshable holographic stereograms
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DOI：
10.1117/1.oe.57.6.061608
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发表时间：
2018-06-01
影响因子：
1.3
通讯作者：
Peyghambarian, Nasser
中科院分区：
文献类型：
--
作者：
Blanche, Pierre-Alexandre;Bigler, Colton;Peyghambarian, Nasser
提出了一种连续记录可刷新全息立体图的技术。我们取消了来回移动记录光束的平移台，取而代之的是一条不间断的透明带，带着全息透镜。该带被沿着周边驱动，使透镜在光折射屏的前面横向移动而不反转方向。全息透镜将物体光束聚焦到全息像素上，并永久记录在薄的光聚合物中。感光聚合物材料具有足够的柔性，使得镜片在绕张紧辊转动时能够跟随带的曲率。全息元数据被顺序地上传到空间光调制器上以形成物光束。带在一个单一方向上的旋转允许连续操作和比需要在其行程跨度的末端处反转方向的平移台快得多的记录速度。(C)2018年，摄影光学仪器工程师协会（SPIE）
We present a technique to record refreshable holographic stereograms continuously. We eliminated the translation stage that shifts the recording beams back and forth and replaced it with an uninterrupted transparent belt holding holographic lenses. The belt is driven along a perimeter, shifting the lens laterally in front of a photorefractive screen without reversing direction. The holographic lenses focus the object beam onto holographic pixels and are permanently recorded in a thin photopolymer. The photopolymer material is flexible enough for the lenses to follow the curvature of the belt when it goes around the tensioning rollers. The hogel data are uploaded sequentially onto a spatial light modulator to form the object beam. The rotation of the belt in one single direction allows for a continuous operation and a much faster recording speed than with a translation stage that needs to reverse direction at the end of its travel span. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)