Nology)

[Raymond C Drouillard]

>Because an LCD panel does not consitute a legal number plate. If you get
>pulled over for anything, I'm sure it wouldn't be too hard to work out
>something funny is happening. I very much doubt an LCD panel showing the
>numbers would be convincing. Also the welding mask LCD panels turn
opaque 
>entirely. You would need to obtain an LCD panel that has individual
>sections in it to make up the differnet numbers and letters. 
>In Australia you are allowed to have clear plastic number plate covers,
>hence an LCD panel can be made to look like one of those.
>
>Cheers, Mos.

How clear does it have to be?  Could it be designed similar to a HUD, or
perhaps have diffraction grating etched in?  It would be close to
invisible to the naked eye.

Better yet, how about etching or molding a very small corner reflector
pattern into the side closest to the plate?  This would cause a glare to
be reflected back at any strong light source (flash).

Standard reflectors, such as you see on bicycles, next to the freeway,
and on the back of cars use a corner reflector pattern.  That's what the
triangular pyramid pattern is for.

Totally passive - how's that for elegant?


Ray Drouillard

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