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第17篇摘要学习
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Speckle reduction mechanism in laser rear projection displays using a small moving diffuser
散斑降低机制 in 激光背投显示 using a 小移动散射片
Yuhei Kuratomi,* Kazuo Sekiya, Hiroaki Satoh, Tatsuhiro Tomiyama, Tohru Kawakami,
Baku Katagiri, Yoshito Suzuki, and Tatsuo Uchida
Department of Electronics, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
*Corresponding author: yuhei@gamma.ocn.ne.jp
Received April 6, 2010; accepted May 17, 2010;
接收在 2010/04/06 录用 2010/05/17
posted June 18, 2010 (Doc. ID 126517); published July 14, 2010
Recently, a practical method of speckle reduction in laser rear projection displays that uses an optical system with a small moving diffuser has attracted much attention. In this paper, a model of the speckle generation and reduction mechanism in the system is presented. We investigated the speckle, focusing on the physical aspects of its generation, rather than treating it statistically. We found that the granularity of the speckle patterns generated by the small diffuser corresponded to the size of the coherent regions on the projection screen. This determined the ef?ciency of the speckle reduction when the small diffuser was rotated.
Recently，a practical method of 散斑降低 in 激光背投显示 that uses an 光学系统 with a 小的移动散射片 has 吸引很多注意。In this paper ，a model of the 散斑产生 and 减少 的机制 in the system is presented。We investigated the 散斑，聚焦在 物理方面 of the 产生，rather than 对待它统计的，We found that the 粒度 of the 散斑图样 产生 by the 小的散射片 对应于 the size of zhe 相干区域 on the 投影屏幕， This determined the 效率 of the 散斑减少 when the 小散射片 was 旋转。
这里，值得学习的是，作者着重从物理机制上来研究这个问题和解决方案。这是非常重要的。以后看到被投光源那里有个旋转的散射片，千万不要觉得没用。这是别人研究出来的解决方法。
? 2010 Optical Society of America
OCIS codes: 030.6140, 120.2040.
https://m.sciencenet.cn/blog-408189-352367.html
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散斑降低机制 in 激光背投显示 using a 小移动散射片
Yuhei Kuratomi,* Kazuo Sekiya, Hiroaki Satoh, Tatsuhiro Tomiyama, Tohru Kawakami,
Baku Katagiri, Yoshito Suzuki, and Tatsuo Uchida
Department of Electronics, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
*Corresponding author: yuhei@gamma.ocn.ne.jp
Received April 6, 2010; accepted May 17, 2010;
接收在 2010/04/06 录用 2010/05/17
posted June 18, 2010 (Doc. ID 126517); published July 14, 2010
Recently, a practical method of speckle reduction in laser rear projection displays that uses an optical system with a small moving diffuser has attracted much attention. In this paper, a model of the speckle generation and reduction mechanism in the system is presented. We investigated the speckle, focusing on the physical aspects of its generation, rather than treating it statistically. We found that the granularity of the speckle patterns generated by the small diffuser corresponded to the size of the coherent regions on the projection screen. This determined the ef?ciency of the speckle reduction when the small diffuser was rotated.
Recently，a practical method of 散斑降低 in 激光背投显示 that uses an 光学系统 with a 小的移动散射片 has 吸引很多注意。In this paper ，a model of the 散斑产生 and 减少 的机制 in the system is presented。We investigated the 散斑，聚焦在 物理方面 of the 产生，rather than 对待它统计的，We found that the 粒度 of the 散斑图样 产生 by the 小的散射片 对应于 the size of zhe 相干区域 on the 投影屏幕， This determined the 效率 of the 散斑减少 when the 小散射片 was 旋转。
这里，值得学习的是，作者着重从物理机制上来研究这个问题和解决方案。这是非常重要的。以后看到被投光源那里有个旋转的散射片，千万不要觉得没用。这是别人研究出来的解决方法。
? 2010 Optical Society of America
OCIS codes: 030.6140, 120.2040.
https://m.sciencenet.cn/blog-408189-352367.html
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