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XYZ coordinates measuring system

  • US 4,961,155 A
  • Filed: 09/19/1988
  • Issued: 10/02/1990
  • Est. Priority Date: 09/19/1987
  • Status: Expired due to Fees
First Claim
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1. An XYZ coordinates measuring system comprising:

  • a slit light source means for projecting a slit light beam onto a surface of a work to be measured with a predetermined angle;

    television camera means for taking a light line formed on the surface of the work by said slit light beam to generate an output video signal; and

    coordinate measuring circuit means for processing said video signal and for detecting horizontal and vertical imaging positions Ks and Ls of said light line, said coordinate measuring circuit means including look-up table means for previously storing an interrelationship between horizontal and vertical imaging positions of said light line and XYZ coordinates thereof on said surface of the work, thereby outputting XYZ coordinates on the surface of the work from the look-up table means, based on detected values of the horizontal and vertical imaging positions Ks and Ls,whereby the XYZ coordinates on the surface of the work are real-time measured along the light line.

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