Re: Light Box Flats

[Tom Droege <tdroege@veriomail.com>]

I would think that one would want to be careful about running at reduced 
voltage.  It is easy to get to the point that the IR component is much 
larger than the V component.  In this case, you might overwhelm the V 
filter and end up with a mish mash of a response curve.  Then any little 
change on a fast changing filter edge might distort the response.

I plan to run at normal voltage unless someone gives me a better 
argument.  One could argue that a photo flood lamp would be better since it 
peaks up closer to the V response.

Tom Droege

At 01:37 AM 11/13/01 +0800, you wrote:
>You dont need the power or intensity of a QI lamp, and if you
>want it to be stable and reliable, you run the globe at well under
>its normal voltage. This is a real no-no with QIs! A normal
>tungsten bulb is fine for this job.
>
>Another reason not to use a Xe flash or arc globe is that
>like the 'white' LEDs, the output is a 'line forrest' rather
>than a continuous spectra.
>
>--
>Paul Repacholi                               1 Crescent Rd.,
>+61 (08) 9257-1001                           Kalamunda.
>                                              West Australia 6076
>Raw, Cooked or Well-done, it's all half baked.
>EPIC, The Architecture of the future, always has been, always will be.