From July 8 to July 11, Dr. SenHan,  the chairman of H&L Instruments, went to Beijing to attend the 10th International Conference on Information Optics and Photonics (CIOP 2018) International Conference co-sponsored by China Laser Magazine and Tsinghua University. More than 800 scientific researchers and business representatives from China, the United States, Germany, the United Kingdom, Japan and South Korea participated in the conference. Dr. SenHan chaired the conference on optical design and optical precision measurement as chairman.