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Re: Optical COmms experiment

35 lumens/watt for some of the really bright green LEDS.  Compared to 13
l/w (I believe) for incandescents.  And you also don't need the reflector
for the LEDS, since they already have a narrower emission beamwidth.

> I was using a 6% visual efficiency for the incandescent, but have been
> told (to my surprise) that a LED is only 8%?  ANyone konw for sure?
> Bob
> On Fri, 4 May 2001, James Sharp wrote:
> >
> > LEDs.  That same 3 watts you'll burn in the incandescent light will get
> > you oh so much more light.  And you'll never have to send someone up to
> > orbit to change the lightbulb when it burns out.
> >
> >

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