Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications
Storage apparatus and storage apparatus management method performing data I/O processing using a plurality of microprocessors
Electro-optical device, method of manufacturing the same, and electronic apparatus
Isolated SCR ESD device
Sign language keyboard and sign language searching apparatus using the same
Rechargeable battery
Method for manufacturing semiconductor element and semiconductor device, and deposition apparatus
  Randomly Featured Patents
Monotonic leakage-tolerant logic circuits
Contact element for shielded connectors
Method for forming an artificial fingernail on a natural fingernail
Overhead instrument console
Chair shelter
Temperature switching device
Lifter device for magnetic tape cartridge
Wireless local loop handset
Wardrobe systemizer device
System for interception and defeat of rocket propelled grenades and method of use