Dark IR is nothing more than ir energy that is not visable to the human eye. For instance, IR heat lamps used to heat food are red. OTOH, ceramic fixtures and bulbs made of ceramic emit ir energy without producing any (Or very few) photons. In recent years, dark IR become come into wide spread use in many industries because it is more energy effiecent (Costs less to operate).
Metal finishing shops use it to cure powder coatings on metals. Paint shops use it to cure specialty paints (The aerospace industry). It's even in use in the board assembly and rework industries (Which is how I got the idea in the first place). Ersa was the first company in the assembly/rework of PCB's to introduce products based on dark IR (They pioneered it for PCB's and received a lot of industry awards for their work). If you go to the Ersa web site, you'll find a couple of assembly and rework machines based on this technology. If you only want to look at dark ir fixtures, here is a link to a reseller:
http://www.morelectric.com/
FWIW, I use ceramic elements manufactured by Salamander. They are priced well, have a long life and are easy to obtain.
Regards
Marvin Dickens
> Karel Kulhavy wrote:
What is dark IR? I know what IR is but don't know what a dark IR is.
