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
Mixed reactant flow-by fuel cell
Photoelectric conversion apparatus
Containers having radio frequency identification tags and method of applying radio frequency identification tags to containers
Late loading rich media
Method and system for detecting center pivot collision
Clusterin antisense therapy for treatment of cancer
Method of allocating IP address of image forming apparatus using DHCP, image forming apparatus and system of allocating IP address using DHCP
  Randomly Featured Patents
Fence spacer
Seeder apparatus for dispensing seed with or without top dressing
Power-gated retention flops
Variable linear motion cycle monitoring device
Process for the preparation of alkoxyhydridosilanes
Pelvic stabilization device
Bleach tablet composition
Printing apparatus which is capable of editing printing data, and a printing method for use with the printing apparatus
Cooling apparatus