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Two-color radiation thermometer

  • US 20040208223A1
  • Filed: 04/02/2004
  • Published: 10/21/2004
  • Est. Priority Date: 04/18/2003
  • Status: Active Grant
First Claim
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1. A two-color radiation thermometer for measuring a temperature of an object, comprising:

  • one image pickup device having a light receiving surface with a plurality of micro photo receiving elements arranged two-dimensionally, said light receiving surface having a first area and a second area, light diverging means for guiding light radiated from the object toward the first area and the second area, light selecting means formed at a front side of the image pickup device for selecting first and second wavelengths of the light irradiated on the first area and the second area, and temperature calculation means electrically connected to the image pickup device, said temperature calculation means receiving a first image signal corresponding to the first wavelength from the micro photo receiving elements located in the first area and a second image signal corresponding to the second wavelength from the micro photo receiving elements located in the second area, and calculating the temperature of the object based on the first and second image signals.

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