为了消除散斑现象，对随机漫射体抑制散斑的可行性进行了探讨.分析了“随机微透镜阵列”作为随机漫射体在光束控制和光能利用率方面的优越性，并提出了在光学系统中加入转动“随机微透镜阵列”的方式抑制散斑.对加入这种结构后屏幕上的散斑进行了测量，验证了此种方法可以将散斑对比度降低到1.15％，使人眼分辨不出激光散斑，提升了激光电视的观看效果，并与传统的转动匀光棒法进行对比，体现了此种方法出色的抑制散斑的能力.
In order to eliminate disturbing speckle phenomenon,this paper discussed the feasibility of speckle reduction,analyzed the superiority in beam control and energy efficiency using the "random micro-lens array" as the random diffuser,and proposed to set the rotating"random micro-lens array"in the optical system to reduce the speckle. The speckle on the screen was measured after setting this component,this method was verified to reduce speckle contrast to 1.15% so that the eyes couldn’t distinguish the laser speckle. This method can greatly improve the viewing quality of laser TV. Com-pared with traditional method of rotating uniform light stick,this method presented the excellent ability in speckle reduction.
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