There are/were one or two companies around making EPROM erasers using a
Xenon flash tube - these emit quite a lot of UV. This technique might be
worth investigating for PCB exposure. Multiple flashes could be used if one
wasn't sufficient. I don't think an ordinary photographic electronic flash
unit would be suitable as it stands as they probably have a UV filter,
although I'm not sure about this.
Leon
--
Leon Heller, G1HSM
Email:
aqzf13@...My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html