Colours detector circuits

Discussion in 'The Projects Forum' started by MRT, Oct 23, 2008.

  1. MRT

    Thread Starter New Member

    Oct 23, 2008
    1
    0
    Hi,

    i need to design a prototype detectors circuit that can respond to coloured trackside lights [red, blue and yellow]. Any suggestions which are useful that i can consider with?

    Should i consider the use of filters?

    your help is highly appreciated. ^^
     
    Last edited: Oct 23, 2008
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    Most sensors are sensitive to such a wide range of light colours that optical filters are the only practical approach.

    Video and Still cameras have three identical sensors and filters for instance.
     
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