On October 8,2014, Dr. H. Philip Stahl, SPIE Chairman, visited our company and had an academic exchange with Dr. Hansen, the chairman of the company, and his staff on interferometry, manufacture and development of interferometers, and application of products. Dr. Hansen introduced our company's main R&D products.

Dr. H.Philip Stahl is a world-class expert in optical measurement, optical engineering and phase-shifting interferometry. The chairman and his delegation visited our R&D department, laboratory, optical mechanical assembly room, electrical assembly room and so on, and put forward many valuable suggestions for the future development of our company.