- CEO
- Han Jung
- Full Time Employees
- 507
- Sector
- Health technology
- Industry
- Medical specialties
- Address
- Daejeon South Korea
- IPO Date
- Jul 30, 2015
- Business
- i3system, Inc. is a South Korea-based technology company that specializes in the research, design, development, and manufacturing of high-performance infrared imaging detectors, thermal imaging modules, and direct-conversion digital X-ray sensors for defense, aerospace, industrial, and commercial applications. Founded in 1998 and headquartered in Daejeon, South Korea, the company operates as the primary indigenous supplier of military-grade cooled infrared focal plane assemblies for South Korean defense weapon systems and provides specialized thermal and optical sensing solutions to original equipment manufacturers, defense contractors, industrial inspection providers, and medical device developers across Asia, Europe, North America, and the Middle East.
The company's core product and service offerings encompass cooled infrared detectors, including Indium Antimonide and Type-II Superlattice High Operating Temperature mid-wave infrared and long-wave infrared sensor engines under the MARKOS, Super MARKOS, and LUKAS series for anti-tank precision-guided munitions, surface-to-air missile systems, main battle tank fire control systems, armored fighting vehicle sighting platforms, and airborne electro-optical targeting systems; uncooled infrared detectors, comprising vanadium oxide and amorphous silicon microbolometer focal plane arrays available in QVGA, VGA, and XGA resolutions with pixel pitches down to 12 micrometers for security surveillance, handheld thermography, autonomous driving night-vision, industrial monitoring, robotics, and unmanned aerial vehicle payloads; commercial thermal imaging cameras and original equipment manufacturer core modules marketed under the Thermal Expert brand, including standalone and mobile-compatible cameras such as the TE-Q1, TE-V1, and TE-SQ1, as well as integrated engine cores including the TE-EX2, TE-EV2, and TE-EQ2 series for building diagnostics, electrical facility inspection, non-destructive testing, and veterinary healthcare; short-wavelength infrared detectors, incorporating Indium Gallium Arsenide sensors for semiconductor inspection, hyperspectral imaging, solar cell evaluation, and anti-counterfeiting verification; direct-conversion flat-panel X-ray detectors under the XID series for dental panoramic radiography, medical diagnostic imaging, and industrial non-destructive testing; and aerospace electro-optical payloads, including space-qualified infrared focal plane units and optical assemblies designed for Earth observation satellites and environmental monitoring platforms.
In recent operational and strategic developments, i3system, Inc. has expanded its manufacturing footprint through the construction and commercial commissioning of a new production facility in the Dungok district of Daejeon, investing approximately KRW 18 billion to scale automated fabrication and packaging capacity for uncooled infrared detectors to meet growing commercial and dual-use defense demand. The company has also achieved significant international market growth driven by expanding export programs for South Korean defense platforms, integrating its thermal sensor assemblies into combat vehicles and precision-guided missile systems exported to international clients across Europe and the Middle East, with export shipments accounting for nearly half of total corporate revenues. In product innovation, i3system, Inc. has advanced the commercialization of its next-generation Type-II Superlattice High Operating Temperature infrared detectors, including the Super MARKOS series, which operate at higher cryogenic temperatures to reduce SWaP (size, weight, and power) overhead and maintenance costs in long-range tactical surveillance systems. Additionally, the company has broadened its aerospace business through contract engagements for satellite-mounted electro-optical sensor assemblies, strengthening its capabilities across defense, industrial, and space-based optoelectronic markets.