The optical convergence system technology is the core technology of the fourth industrial revolution era, and it is developing and researching to enhance the global competitiveness of the optical industry in korea by researching optical imaging, optical wireless and optical sensor technology. In the optical imaging field, we are studying disease diagnosis technology and holography technology using AI based on hyper spectral imaging. In the optical wireless field, we are studying broadband long range FSO technology that can be used in unmanned aerial vehicle. In the field of optical sensors, various optical sensors that can be used in electric power facilities are under research and development.