Resources Contact Us Home
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.

  Recently Added Patents
Monoclonal antibodies and binding fragments thereof directed to the melanocortin-4 receptor and their use in the treatment of cachexia and related conditions and diseases
Implementing vector memory operations
Method and apparatus for color conversion based on LCH color space, and liquid crystal display device
Semiconductor device and manufacturing method thereof
System and method for storage and retrieval of personal preference audio settings on a processor-based host
Equalizer circuitry with selectable tap positions and coefficients
Duplex mismatch detection
  Randomly Featured Patents
Device for severing packing strips having blisters from a continuous film
Chondroitin polymerase and DNA encoding the same
Detachable pistol stock
Crosslinked glycosaminoglycans and their use
Method and device for detecting the presence of an exhaust gas treatment system in an exhaust line of an internal combustion engine
Vapor-seal safety cap and container
Vehicle pivotal seat structure
Method of producing optically active pyrrolidines with high enantiomeric purity
Digital computer having programmable structure
Gasoline internal combustion engine