From 1994 until his death, he was on the faculty of the School of Electrical and Computer Engineering of Seoul National University.
In September 1994, he joined the School of Electrical and Computer Engineering, Seoul National University as faculty.
He was a committee member of OSA, SPIE and IEEE and a fellow of Society for Information Display.
He has received several distinguished academic awards such as Jinbojang Presidential Science Badge of Korea (Apr.
Along with long-time professions for holography, integral imaging, optical fibers, and plasmonics, he and his group were dedicated to developing advanced head-mounted displays for three-dimensional augmented reality, light field displays, and real-time three-dimensional microscopy.