White LED with emission down to 400 nm

[Steve]

Is there a white led that emits down to 400 nm ? The one's I see have
a peak in the blue near 450 nm with a sharp fall off down to 420 or
430 nm. I'd like to use one for absorption spectroscopy to to 400 nm.

http://ledmuseum.home.att.net/specx11.htm

 

[Brendan Gillatt]

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Steve wrote:

Is there a white led that emits down to 400 nm ? The one's I see have
a peak in the blue near 450 nm with a sharp fall off down to 420 or
430 nm. I'd like to use one for absorption spectroscopy to to 400 nm.

http://ledmuseum.home.att.net/specx11.htm

You would probably be better off with a matched RGB array of LEDs for any
kind of accuracy. White LEDs produce a very odd and uneven emission spectrum.

- --
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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