Here's the idea. Reverse the emitter and make it a capture panel of say,
16x20 on the roof or at a powerful light source like a platemaker, then run
a fiber pipe down to the darkroom and into the lens. Here you would have a
hot enlarger, with enough light to print pt/pd and other alt photo
processes. Hot may be the operative word, however. Putting that much
concentrated sunlight into a normal enlarging lens would melt the balsam or
whetever they use now. When I was in aerospace we used water cells to trap
the IR heat, so this might be used here.
The question for the knowlegeable in this realm is how much of a fiber pipe
would be needed to transmit this much light energy? Cost? If the IR could be
trapped, would the heat still be a problem.
Obviously, as one could imagine, I salivate at the thought of a platinum
enlarger.
Dick S.
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Dick Sullivan
Bostick & Sullivan
Santa Fe, New mexico