From: Jarred McCaffrey (jmccaffr@cs.uml.edu)
Date: 05/05/00-11:03:39 AM Z
That's great, Rod. To paraphrase from the web page you mentioned, Xenon strobes
emit an array of light waves approximately equivalent to high noon on a tropical
island. That definitely seems pretty applicable.
I was thinking, if UV waves are the most important part of our exposures, why
bother with generating the rest of the visible light and all the heat that comes
along with it. Does anyone think that UV lights (aka, blacklights) would serve
our purposes?
Here is another link from the author that Rod referred us to which talks
specifically about UV light. He even mentions that one type of light is used in
special photographic processes and printing. Hmmm...
http://www.misty.com/~don/uvbulb.html
Jarred
Rod Fleming wrote:
> Hi
> ----- Original Message -----
> From: Tom Ferguson <tomf2468@pipeline.com>
> To: <alt-photo-process-l@skyway.usask.ca>
> Sent: 05 May 2000 15:12
> Subject: Re: Gum prints by enlargement
>
> >All the paper was fogged that night, apparently
> > from the small number of 2000WS flashes from across the large room.
> >
> > So, bottom line: It might work. But, you want a brute force high output,
> > cheap (simple clear glass tube) head. Let us know what you find.
> >
> > P.
>
> First, folks, a word on safety; the power capacitor in even the simplest
> little disposable camera packs plenty enough wallop to kill an adult human
> stone dead, and the caps in a "brute force high output" unit- hey, nice
> hairdo!!! So be very careful.
>
> Having said that, DIY freaks might care to have a look at this here site
> here
>
> http://www.misty.com/~don/donflash.html
>
> In which Don Klipstein- who clearly is of the stuff the Wright brothers were
> made of- tells you all you need to know to make truly intergalactic strobe
> flashes.
>
> However, the source I'd want to investigate- if I was not happy with the
> sun, which admittedly we Scots don't see too much of- would be carbon arc.
> This is really heavy on UV and requires the application of a continuous
> voltage across the gap between two carbon electrodes (anybody have an old
> WW2 anti-aircraft searchlight unit around?) You'd have to mount it remotely
> because of the heat, and use a condenser system to collimate the light, and
> have very efficient cooling, but I'm pretty sure it would work all right. A
> basic version could be designed using a small hobby type arc welder -say 120
> to 150 amp- fitted with a carbon arc brazing attachment. Remember to wear
> plenty of sun screen......
>
> Rod
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