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FAR IR LED - 10 micron

I am looking for an emitter in the 10 micron range. I have searched for LEDs but can't find anything quite that long. Any other type source would be okay, but I prefer the emissions to peak in the 8-12 micron range so I can operate efficiently. Am running from batteries.

Thanks in advance.

Jim

Reply to
jim_nospam_beasley
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Thanks, Ian. I understand. What might be a good broadband emitter, then? I suppose I can make a tradeoff in lost power at the unneeded wavelengths. That may be unavoidable.

Jim

Reply to
jim_nospam_beasley

10 microns? You could use your hand.

There are some devices which are brighter than a black-body source, but from what I can see they seem to be more in the particle physics area than something that will run off reasonable sized batteries.

Best regards, Spehro Pefhany

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Reply to
Spehro Pefhany

AIUI, there are no efficient emitters in this bandwidth, you're just looking at filtered broadband sources.

Reply to
Ian Stirling

The blackbody (Planck) function increases with temperature at all wavelengths, as well as shifting toward the blue with increasing T. Thus a very hot object emits more 10-um than your hand, but you have to filter pretty aggressively, since most of the power is at shorter wavelengths.

Cheers,

Phil Hobbs

Reply to
Phil Hobbs

What you need is a Nernst glower:

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Reply to
The Phantom

I read in sci.electronics.design that jim_nospam snipped-for-privacy@yahoo.com wrote (in ) about 'FAR IR LED - 10 micron', on Sun, 28 Aug 2005:

An incandescent lamp? Maybe run dimmed.

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Regards, John Woodgate, OOO - Own Opinions Only.
If everything has been designed, a god designed evolution by natural selection.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
Reply to
John Woodgate

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