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Optical transmission apparatus employing an illumination light

  • US 20020167701A1
  • Filed: 03/27/2002
  • Published: 11/14/2002
  • Est. Priority Date: 03/28/2001
  • Status: Active Application
First Claim
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1. An optical transmission apparatus for transmitting and receiving information by employing light through a free space comprising:

  • an illumination light source;

    a power source means for supplying power to said illumination light source;

    a modulation means for modulating wave forms of said power supplied from said power source means to said illumination light source in response to said information;

    a signal transmitting apparatus for transmitting a modulated illumination light obtained from said illumination light source;

    a signal receiving means for receiving said modulated illumination light from said illumination light source; and

    a signal receiving apparatus having a demodulating means to demodulate said information out of said modulated illumination light received by said signal receiving means.

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