Hey, that's cheating.  OSU is in oregon.  Not Ok.

Martin McCormick wrote:

>         Someone recently commented on the phosphor wearing out in
> white LED's.  That made me ask two questions:
>
> 1.  How long do they last?  Conventional LED's usually outlive the
> device they are in.
>
> 2.  If they depend upon a phosphor, what is the persistency?
> It occurred to me that it would be neat to have a nice pilot lamp on
> some piece of gear that could also do double duty as a data or carrier
> transmitter.  Regular IR or red LED's can be driven up in to the
> megahertz with no trouble at all.  The challenge is usually in finding
> a suitable photo cell that can recover the signal.
>
>         If a white LED burns out or dims out after a few hundreds or
> thousands of hours, it isn't that much of an improvement over a small
> incandescent bulb except maybe for the energy efficiency factor.
>
> Martin McCormick WB5AGZ  Stillwater, OK
> OSU Information Technology Division Network Operations Group
>
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