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
Rim for a TV receiver
Substituted phenylsulfur trifluoride and other like fluorinating agents
Dynamic trunk distribution on egress
Liquid crystal display device
Semiconductor device comprising a Fin and method for manufacturing the same
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Drug delivery system
  Randomly Featured Patents
Microphone module with electromagnetic interference shielding means
Method of isolation and recovery of protein hormones, deriving from pituitary tissues using polyethylene glycol
Method and apparatus for a mobile training device for simultaneous use by multiple users
Multiplexing of voice and data minicells
Switch mode power supply with output voltage equalizer
Electric carpet sealing iron with dual odor and smoke filtration arrangement
Print head for a dot-printer
Wafer probing test apparatus and method of docking the test head and probe card thereof
Flower pot cover