Resources Contact Us Home
Zonal concentrator for accurate erasure of photoconductor charge

Image Number 3 for United States Patent #4344691.

Erase apparatus for use in an electrophotographic copier machine where an array of light-emitting diodes (LEDs) is placed adjacent a plano-convex-cylindrical entrance end of an optical element such that light rays from the LED array are directed through the optical element to its exit end. At the convex-cylindrical exit end, the light rays are directed to the photoconductive surface of the machine. The optical element directs the more intense light rays emitted from the LEDs near the central axis to the edges of the erasure footprint while the less intense rays emitted from the LEDs at larger angles from the central axis are redistributed to the central portion of the erasure footprint.

  Recently Added Patents
Tiger paw stationary tab
Pixel structure of organic light emitting device
Sports helmet
LED light source lamp having drive circuit arranged in outer periphery of LED light source
Digital camera supporting intelligent self-timer mode and method of controlling the same
Center spreader adapter tool for toilet paper rolls and paper towel rolls that do not have inner cardboard tubes
High-performance AHCI interface
  Randomly Featured Patents
Plant histidinol-phosphate aminotransferase homologs
Component holding device
Turbine-type wind machine
Plug assembly for sealing a pressure fluid passage in a manifold or the like
Diagnosis of network fault conditions
Spray tip
Cotton harvester for producing modules which can be automatically identified and oriented
Material conditioner
Dynamic joint motion analysis technique
Coupling device and method for manufacture thereof