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
Personal warming apparatus
Selenium/group 3A ink and methods of making and using same
Display sheet, display device, and electronic apparatus
Paper product with surface pattern
Switchgear and method for operating switchgear
Sign language keyboard and sign language searching apparatus using the same
Methods and apparatus for performing multiple photoresist layer development and etching processes
  Randomly Featured Patents
Rising brace for invalid walker
Key device and electronic device comprising the same
Pressure tester and method
Frictional polyaxial screw assembly
Defragmentation during multiphase deduplication
Ammonium alkylphosphate containing intermediate transfer members
Wrecker body
Advanced antenna diversity mechanism
Surgical clip applier