> I'm leaning towards an open air design, using just a lens, beam
> splitter, and
> diffuser for the led. I may try to incorporate a polarizer or two to
Just out of curiosity, why are you using an LED backlight? While I've
not seen them turned on, these LCDs are transparent, like a photographic
slide. Wouldn't using existing light as a light source be the best
solution, potentially coupled with a small LED for nighttime use? It'd
minimize power use, too...gets rid of one more device.
It wouldn't be too hard to rig something up, for a proof of concept
model.
Keep in mind, even on an overcast day, the sun provides MORE than enough
light for practically any activity.
-- Chuck Knight
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