Time-sharing display approach using liquid crystal light valve and a photoreractive crystal for electroholography
Time-sharing display approach using liquid crystal light valve and a photoreractive crystal for electroholography
复制标题
使用液晶光阀和电全息光反应晶体的分时显示方法
DOI：
10.1117/12.343786
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发表时间：
1999
影响因子：
0.6
通讯作者：
Noburu Sonehara
中科院分区：
文献类型：
--
作者：
T. Horikoshi;M. Sasaura;T. Imai;H. Yamazaki;T. Akimoto;S. Yagi;K. Higuchi;Satoshi Suzuki;Noburu Sonehara
介绍了一种新的电子全息系统，它采用液晶显示器、光折变晶体和分时显示方法。利用光折变晶体作为再现全息图的屏幕，可以实现高质量的离轴计算全息图。分时方法通过将3D对象分割成以连续帧显示的部分，使得电子显示设备能够清楚地显示3D对象。如果火焰以足够高的速度循环，由于余像效应，我们可以将这些部分视为一个单独的物体。这种方法放宽了通常放置在电子显示设备上的严格的动态范围要求。光折变晶体抑制了分时显示方法引起的闪烁。本文首先介绍了分时方法。接下来，展示了一种新的实验3D-TV系统，该系统采用光折变晶体NbO4。这个系统证实了电子全息术令人兴奋的未来。
A new electroholography system is introduced that uses a liquid crystal display, a photorefractive crystal, and a time- sharing display method. By using the photorefractive crystal as a kind of screen through which the hologram is recreated, we can realize high quality, off-axis, and computer-generated holograms. The time sharing approach enables an electronic display device to display 3D objects clearly by breaking them into parts that are displayed in sequential frames. If the fames are cycled at a high enough speed, we see these parts as a single object due to the afterimage effect. This approach relaxes the strict dynamic range requirements that would normally be placed on the electronic display device. The photorefractive crystal suppresses the flicker caused by the time-sharing display method. This paper first describes the time-sharing method. Next, a new experimental 3D-TV system with a photorefractive crystal, strontium barium niobate, is demonstrated. This system confirms the exciting future of electroholography.