From: Phillip Murphy (pmurf@bellsouth.net)
Date: 04/19/03-03:11:19 AM Z
Hello Jeff,
I haven't tested the output of these LEDs for printing
with UV sensitive materials.
However, I constructed a small LED array using diodes with
output in the red region of the spectrum for developing
Becquerel developed Daguerreotypes.
A large array is costly to construct. I would like to
know of your success if you decide to construct one for UV.
I considered this for Woodburytype exposures a while back
but following through with that remains for another day.
best regards,
Phillip
"Jeff Foster, CCS Open System Group" wrote:
> hi all,
> does anyone know if it would be practical to build a
> uv lightbox using the newer UV LED as a light source?
>
> The UV LED I saw had a an output expressed in "mcd" that was
> 2000 mcd.
> http://www.superbrightleds.com/leds/uv_specs.htm
>
> What is the output of a blb uv tube expressed in mcd???
>
> any EE out there who might know the math ?
>
> just s thought ....
>
> thanks for the time,
> Jeff
>
> ----
> Jeff Foster
> 642-8552
> CCS - Open Systems Group
> UC Berkeley
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