Control of Laser Speckle Noise by Using Polymer-Dispersed LC
Control of Laser Speckle Noise by Using Polymer-Dispersed LC
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DOI：
10.1080/15421406.2015.1031999
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发表时间：
2015-05-03
影响因子：
0.7
通讯作者：
Ono, Masatoshi
中科院分区：
文献类型：
--
作者：
Furue, Hirokazu;Sugimoto, Yuka;Ono, Masatoshi
激光散斑噪声的产生是由于激光的高相干性和屏幕表面形貌产生的强干扰。对散斑噪声的抑制对于像投影系统这样的激光显示是必要的。为了降低散斑噪声，我们尝试使用液晶（lc）控制散斑模式。在本文中，我们提出了一种利用聚合物分散LC （PDLC）电池抑制散斑噪声的想法，其中除了光扩散效应之外，散斑图案可以改变。
Laser speckle noise occurs owing to the strong interference that originates in the high coherency of laser light and the surface topography of screen. The suppression of the speckle noise is necessary for laser displays such as an image projection system. To reduce the speckle noise, we have tried to control the speckle pattern by using liquid crystals (LCs). In this paper, we offer an idea for suppressing the speckle noise using a polymer-dispersed LC (PDLC) cell in which the speckle pattern can be varied in addition to the optical diffusive effect.