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
Suspension device
Simplified data interface protocol for digital television receiver
Apparatus and method for OLT and ONU for wavelength agnostic wavelength-division multiplexed passive optical networks
Computer with RFID interrogator
Electronic devices with ultraviolet blocking layers
Sustained drug-releasing stent
Multi-deployable subsea stack system
  Randomly Featured Patents
Multifunction wall device
Communication device for an image pickup apparatus positioned in front of an image sensor
Preparation of methyl formate
Concentric foil structure for regenerators
Multi-turn coils of controlled pitch for electromagnetic casting
Star-cut gem
Differential ice sensor and method
External housing for LED-based linear lighting
Solid polymer electrolyte fuel cell and method for producing electrode thereof
Label holder for mail bags and the like