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Infrared Technology - Basics

Infrared radiation is the part of the electromagnetic spectrum responsible for heat.

The elektromagnetic spectrum is a very large range of electromagnetic waves divided into main groups according their frequence (or wavelength). Visible light, X-rays, infrared radiation, etc. are all part of the same physical phenomena: electromagnetic radiation.

The frequence of IR radiation is slightly lower than the frequence of visible red, hence the name "infra-red". Infrared is, unlike red, not visible with the naked eye.

The infrared spectrum can be divided in the following three wavelength zones:

Short wave infrared (IR-A) : 0,78 µm - 2 µm
Medium wave infrared (IR-B): 2 µm - 4 µm
Long wave infrared (IR-C): 4 µm - 10 µm


elektromagnetisch spectrum tot 10 µm


The effect of infrared radiation is that the radiated object is heated (independently of the ambiant temperature).


IR in theorie

IR in de praktijk


Infrared radiation generates heat by atomic movement in the radiated object.

Part of the IR radiation is reflected by the surface (reflection), part is absorbed (absorption) and part goes through the object (transmission).

For industrial applications it is important that the absorption part is maximalized. This is possible when the right infrared emitter (or infrared wavelength) is chosen according to the material properties.


absorptie - reflectie - transmissie (blauw)


Grafiek SW MW LW



IR vs. convectie


Our infrared emitters cover the whole spectrum of technical
usefull wavelenths.

Thanks to this complete offer we always find the appropriate emitter.


The high emitter temperature generates huge amounts of energy.

This without any medium (for ex. air) and at a low oven temperature.


Energy savings up to 50% are not exceptionnal.


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