Schedule 3 12:15 PM - 12:30 PM [LDC5-04] Effective Speckle Reduction Method Based on a Rotating Ball Lens *Linxiao Deng1, Yuwei Fang1, Yuhua Yang1, Tianhao Dong1, Chun Gu1, Lixin Xu1 (1. University of Science and Technology of China)