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Jay <getochkn@home.com> wrote in message news:Fp0z10.D4H@lugnet.com...
> What about 3 sensors with colored filters over them? would you be able to
> get a color picture...
The LEGO light sensor is a silicon phototransistor which is mostly sensitive
to infrared light. It would be very insenstive to blue light. There is
some more information on the spectral response of the sensor compared to the
human eye on this web page:
http://www.plazaearth.com/usr/gasperi/cds.htm
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Message is in Reply To:
 | | lego photo scanner...
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| has anyone thought of an advantage to using two light sensors in the basic photo scanner robot that people have built. I'm working on one right now (mostly the vb programming right now for the pc side and pqc for the rcx). i have two kits to use, so (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx)
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