INNOOPTIC thermal imaging technology

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How thermal imaging technology works

Visible radiation is perceived by humans in the form of light, but there is also radiation that is invisible to humans in other wavelength ranges. Every body radiates heat (energy) in the form of light sources. Thermal imaging cameras are used to detect these infrared rays, which are invisible to humans. The thermal imaging device uses a sensor that measures the infrared radiation emitted by bodies and objects. This converts thermal radiation into an image. The image generated shows the correct outlines but not the original colours of the body or object. The greater the temperature differences and the warmer a body is, the easier it is to recognise and make visible. Thermal imaging cameras do not need light to create an image. With a thermal imaging camera, you can visualise the temperature of everything you can see on a normal digital camera. Infrared radiation does not pass through solid matter or panes of glass so you cannot see through these with thermal imaging cameras. You also cannot distinguish between lighter and darker appearances.


  • Fast detection of heat sources both during the day and at night.
  • No additional light necessary in the infrared range
  • Almost weather independent
  • Game is not blinded by IR, making the hunter completely unnoticeable.
  • Light weight with long range
  • No disturbing reflection in dense vegetation.


  • Distances are difficult to estimate because you only see a two-dimensional image.
  • Premounted devices must be calibrated before use.
  • A warm climate and high humidity reduce the detail of the thermal image.
  • Under certain circumstances, grass and branches may hide game from the viewfinder.


If you are looking for a device to detect game, a thermal imaging device is certainly a good choice.


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Phone +49 (0) 97 32 / 78 64 660
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