Near, medium and far infrared - what's the difference?
The infrared part of the spectrum lies right next door to the red end of the visible light spectrum and comes just before the "microwaves"!
Infrared can be divided into three categories, near, medium and far!
We know that some infrared heaters glow orange/red and these heaters are generating energy from the "near "infrared part of the spectrum. In terms of measurement this is between 0.75 and 1.4 microns closest to the red visible light. Night vision devices would also use this area of infrared.
Short wavelength infrared is measured between 1.4 and 3.0 microns and is used for long distance telecommunications.
Medium infrared and far infrared do not give off any light at all and can be measured 3.0 microns and above. Heating panels generally fall in the 5.6 to 10.0 micron range.
The more dangerous microwaves are measured at over 1,000 microns and are a long way off the range that infrared heaters use.
As always Wikipedia is a great source for this type of information and if interested you can read more HERE and HERE!
The ramblings of a far infrared heating specialist blogging about our heaters, our industry and what it is like to run a business!
that's so easy to understand!! thanks for sharing the difference between near , far and medium infrared heating system
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