At 06:03 AM 3/18/2004 -0800, you wrote:
>Also check out OSRAM, I have a few demo cards.  Talk about bright....
>
>
>I was thinking about a device to put on the back of a wheelchair, so when
>out and about...it had some indicators.

Interesting idea. Wouldn't it be similar to the flashing LED indicators
that most urban cyclists wear these days? I think they are fairly cheap.

>Looking for a freznel lens of sorts....maybe about 1" to 2" in diameter.
>Anyone know of some sources for those?

The obvious (expensive) choice in the US is Edmund Scientific. You
could also try Surplus Shed in PA. BTW, it's spelled "Fresnel" and
pronounced Frehnel. There are also Fresnel lenses on pyroelectric
motion-detectors. Buying one of those at a Home Despot type place
and stripping the lense out might be cheaper than the shipping charges
from an online optics supplier.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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