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
Automotive lighting system
Selecting a converter operating mode of a PA envelope power supply
Burner grate
Fuel-based injection control
Method and apparatus for communicating electronic service guide information in a satellite television system
Method and system for producing fluoride gas and fluorine-doped glass or ceramics
  Randomly Featured Patents
Pocket-size chess game
Method and structure for attaching a semiconductor die to a lead frame
Golf cart
Method for preventing onset of restenosis after angioplasty employing an RXR-specific retinoid
Shop floor control system
Outdoor computer
Four wheeled vehicle
Packaging container
Radio communication system
Light-metal piston