A Complete Range of Reference Infrared Sources from Vacuum Cryogenic to High Temperatures 

HGH is the electro-optical specialist providing leading-edge infrared reference sources, covering a wide range of temperatures, with extended areas or cavity shaped, operating at usual pressure conditions or dedicated for vacuum applications. Adapted to the most demanding IR sensor testing protocols, HGH blackbodies provide superior stability and certified uniformity. They are all delivered with a certificate of calibration linked to International Primary Standards. Reliable whatever the environment,  HGH blackbodies permit a quick start operation while offering extended control capabilities.

Main applications include calibration of thermographic sensors and cameras, qualification of thermal imagers and production lines of IR detectors and cores. In laboratory or on the field, they are part of the electro-optical test benches for the characterisation of complex optronic systems.

Bring the leading-edge blackbody technology to your lab for the most demanding EO testing applications!

Low Temperature Blackbodies

Low temperature extended area blackbodies

  • Absolute temperature range from –40 °C to +150 °C
  • Differential and absolute operation modes 
  • Extended areas up to 300 mm x 300 mm
TwiN1000 double extended area blackbody

Double extended area blackbody

  • Two independent emissive areas for a single controller
  • Absolute temperature range from -5°C to +150°C
  • High thermal uniformity and emissivity

Reference source for Fever screening camera

  • Certificate of calibration at human fever temperature
  • Compact and robust design
  • High stability of regulation
  • IEC 80601-2-59 standard compliant

Blackbodies for production lines

  • High thermal uniformity
  • Compact emissive heads
  • Easy mechanical and software integration

High Temperature Extended
Area Blackbodies

High temperature extended area Blackbodies
  • Absolute temperature range from ambient +5 °C up to +600 °C
  • Large emissive area up to 1000×1000 mm
  • High emissivity thanks to micro-grooved surface

High Temperature Cavity Blackbodies

  • High temperature reference source up to 1350 °C
  • High spatial and angular uniformity / emissivity
  • Reduced cooling time thanks to COOLSPEED technology.

Vacuum Blackbodies

  • Absolute temperature range from 100K to 425K
  • Use of low out gasing coatings and materials
  • High thermal uniformity and emissivity


  • Wide range of targets of various patterns and sizes 
  • On-demand targets adapted to your tests
  • Several configurations (target wheel or onto the front of the blackbody source)

A large range of metrology services

A large range of testing services is available for your blackbodies, including calibration, maintenance and upgrade. Find out more