>modular lighting systems which have low power consumption and are cost
>effective for a large display of this type.  (20-50 elements 3-5 feet high)
> A bonus would be a system/light module which can be operated from TTL
>level signals or be directly interfaced to a computer via controller card.

Have you considered electroluminescent panels? You can now get
electroluminescent film which you can cut to shape yourself. When activated
with around 100V at 400Hz, it produces a beautiful cool, even glow in a
range of colours. Manufacturers supply suitable power supplies and
interfaces to TTL. I only have UK source information, so you would have to
do your own local research.

Main drawback is that the glow is not that bright, but it looks fine in a
the sort of exhibition where the general lighting level is low with
exhibits picked out at higher level.

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Roger Bridgman

Wellcome Wing Exhibition Development Team
Science Museum, London SW7 2DD, UK

Phone  +44 (0)171 938 8132
Fax    +44 (0)171 938 8079
Web    http://www.nmsi.ac.uk/
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