Design and verification of LSR module in laser display |
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| Authors: | Hong Liu Xiao-liang Ye Chang-li Sun Wei-sheng Wang |
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| Institution: | 1. School of Electronics Information, Shanghai Dianji University, Shanghai 200240, China;2. School of Information Science & Technology, East China Normal University, Shanghai 200062, China |
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| Abstract: | The LSR module of optical engine in laser display has been designed and discussed in this paper. It has also been tested and verified with the scattering sheet of 5°, 10° and 20°. The experiment demonstrates that the method of rotating the scattering sheet with 10° can effectively suppress laser speckle in our system. It can make the speckle contrast of large power projection system drop to 4.2% < 5%, which reaches the acceptable range of the human eyes. |
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| Keywords: | Laser display Laser speckle reduction (LSR) Contrast Luminance Rotating scattering sheet |
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