Anhu Li received the Ph.D. degree in Optical Engineering from Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. He is currently a Professor with Tongji University, China. He has leaded over ten important scientific research projects in the laser tracking fields and also developed many precision optical tracking and test devices. He has published more than 70 articles in several journals including Optics Express, Applied Optics, Optics and Laser Technology, Optical Engineering, Optik, Optica Applicata, Chinese Optics Letters, International Journal of Advanced Manufacturing Technology, Journal of Mechanical Engineering and Proceedings of SPIE. He is an active reviewer for over ten international journals. His research interests include optical scanning, laser tracking, optical test, opto-mechanical integrated design and analysis, and optical instrument.