Speckle Characterization in Laser Projector Display
Speckle Characterization in Laser Projector Display
复制标题
激光投影仪显示中的散斑表征
DOI:
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发表时间:
2012-03
期刊:
影响因子:
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通讯作者:
Xuyuan Chen
中科院分区:
文献类型:
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作者:
Meifang Xu;Yunbo Shi;Guoxian Tang;Jun Liu;Xuyuan Chen
Speckle phenomena results from when coherent radiation is reflected from a rough surface. Characterizing the speckle strongly depends on the measurement condition and experimental setup. In this paper we report the experimental results produced with different parameters in the setup. We investigated the factors which affects the speckle contrast, such as, F-number, gamma value and exposure time of the camera, rather than geometric factors like the distance between the projector lens to the screen, the viewing distance, etc. The measurement results show that the speckle contrast decreases by decreasing F-number, by increasing gamma value, and slightly affects by exposure time of the camera and the gain value of the camera. Keywords—Characterization, laser projector, speckle
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DOI:
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发表时间:
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期刊:
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