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Home video camera/TV remote control

Discussion in 'Electronic Basics' started by Dan Beck, Nov 11, 2003.

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  1. Dan Beck

    Dan Beck Guest

    Hello all,

    Awhile back I read somewhere that you can observe the IR signals from your
    TV remote through the eyepiece of your home video camera. Being the
    underinformed skeptic I did attempt this, and sure enough, I was able to see
    the signals. Can someone offer an explanation for this phenomenon?

    Thank you in advance for reading.

    Regards,
    Dan
     
  2. Luhan Monat

    Luhan Monat Guest

    Real simple, Dan.

    The sensors (CCD's) used in today's camcorders respond very well in the
    short infrared range as well as in the visible spectrum.
     
  3. Jim Large

    Jim Large Guest

    So well, in fact, that most^H^H^H^Hall color video cameras
    have an IR blocking filter. The Filter is not perfect,
    the CCDs are very sensitive, and the IR remote is very
    bright; so the O.P. is seeing the little bit of infrared
    that leaks through.

    Try the same thing with a SONY video recorder in "Night
    Shot" mode (slides the IR blocking filter out of the way)
    and your IR remote will light up the room like a
    flashlight.

    Don't ask me how I know.

    -- Jim L.
     
  4. Dan Beck

    Dan Beck Guest

    Thank you for your time!

    Dan
     
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