
Blackbodies
An infrared blackbody source for every requirement
EOI's IR reference sources come in five different offerings:
- Differential Sources: differential temperature sources, for the test and characterization of IR imaging systems
- Extended Area Sources: Low to High temperature extended area blackbodies for field tests and calibration without collimator
- Cavity Blackbody Sources High-temperature cavity blackbodies for calibration of infrared sensors
- TwiN1000 double extended area blackbodies, for applications requiring fast switching between temperatures
- Cryogenic Vacuum Blackbodies: cryogenic temperature reference sources for spaceborne systems testing
Each of these five categories contains a multitude of configurations including different sizes, temperature ranges, emissivities, as well as options such as target, aperture & filter wheels and chillers and dry boxes. Feel free to explore our extensive product line below. If you happen to need something custom made, please fill in the "Information request" form.
New Generation of Blackbody Controllers
An advanced technology revolutionizing Blackbodies’ capabilities
HGH understands the importance of the Human-Computer Interface in the maintenance and testing of electro-optical devices.

Differential and Absolute Low Temperature Blackbody
EOI's differential and Absolute Low-Temperature sources provide precise, adjustable thermal between a target and the background.
- Absolute temperature range from –75 °C to +150 °C
- Extended areas up to 300 mm x 300 mm
- Differential and absolute operation modes

High Temperature Extended Area Blackbody
ECN100 High temperature extended area blackbodies
- Absolute temperature range from ambient +5 °C up to +800 °C
- High emissivity thanks to micro-pyramidal surface
- Large emissive area up to 1000x1000 mm

High temperature cavity blackbody
RCN Cavity blackbodies
- High temperature reference source up to 1350 °C
- Reduced cooling time due to COOLSPEED technology
- High spatial and angular uniformity/emissivity

Double extended area blackbody
TwiN1000 double extended area blackbody
- Two independent 42mm x 42mm emissive areas
- High thermal uniformity and emissivity
- Absolute temperature range from 0°C to +150°C

Vacuum blackbody
Vacuum blackbodies for cryogenic or ambient irradiative environment
- Absolute temperature range from 100K to 425K
- High thermal uniformity and emissivity
- Use of vacuum compatible coatings and materials

Targets for infrared and visible test
EOI can provide a wide range of targets of various patterns and sizes for characterization of visible and infrared optronic systems.