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Optical scanner filter screen

Image Number 4 for United States Patent #5263101.

An optical scanner filter screen for use with an optical scanner, and method for use, comprising a colored optical filter or optical glass placed between the scanning mechanism of the optical scanner and the document to be scanned, for improving the accuracy of the reproduction of the document resulting from the optical scan by increasing contrast and reducing reflection and distortion of the light read by the scanning mechanism.

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