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Electro-optical sensor for color television games and training systems

  • US 4,496,158 A
  • Filed: 12/13/1982
  • Issued: 01/29/1985
  • Est. Priority Date: 12/13/1982
  • Status: Expired due to Term
First Claim
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1. Apparatus for sensing at a distance one or more colored symbols shown on a display from among at least one other symbol of a different color, comprising:

  • an electro-optical sensor disposed at a distance from a display and capable of receiving light rays from symbols representing objects shown on the display;

    said electro-optical sensor including a photosensitive detector and only a single color filter associated therewith to limit the reception of light detected by the photosensitive detector to light from displayed symbols of predetermined colors while light from displayed symbols of other colors is not detected by the photosensitive detector, said color filter comprising an optical filter including a material which passes visible radiation of certain predetermined wavelengths and excludes visible radiation of certain other wavelengths, wherein the beam of light entering said single color filter has not been split by a beam splitter.

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