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
Concentrating photovoltaic system module with actuator control
5-lipoxygenase-activating protein (FLAP) inhibitors
Badge or pin
Audio and music data transmission medium and transmission protocol
Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
Compounds, compositions and methods for reducing lipid levels
System and method for reliable packet data transport in a computer network
  Randomly Featured Patents
Illumination of vehicle instrument
Turbojet engine thrust reverser door spoilers with motion controlling drive system
Flat lamp for emitting lights to a surface area and liquid crystal display using the same
Combined ceiling fan motor housing, switch housing, and blade irons unit
Electronic payment device using unbalanced binary tree and the method of the same
Method and apparatus for polishing an outer edge ring on a semiconductor wafer
Memory initialization method for volatile memory
Wiring module
Middle distillate containing storage stability additive
Analytical apparatus for serial determination of nitrogen in samples by the Kjeldahl method