From August 29 to September 1, Kaiwei Wang and other four teachers from Zhejiang University went to Japan to visit Japan Hamamatsu company. They introduced the situation of our research group to Hamamatsu Photonics, Hamamatsu Medical University, Shizuoka University and The Graduate School for the Creation of New Photonics Industries. They won wide attention of the Hamamatsu Central Research Institute, and the two sides have been exploring cooperation intentions in new type visual sensors.