i3system

i3system develops and manufactures imaging sensors that convert invisible electromagnetic energy, from X-ray through infrared wavelengths, into visible images, allowing people to see in conditions such as darkness, smoke, or bad weather.

Its products serve defence, medical, space, and general industrial customers, with military applications including night-vision surveillance and guided-weapon targeting systems. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, the company describes itself as the sole domestic supplier capable of developing and mass-producing cooled infrared imaging sensors for military use, making that product line the core of its business.