Color electrophotography using encoded multicolor information

Details Color electrophotography using encoded multicolor information Color electrophotography using encoded multicolor information

1972-01-24

1976-08-03

Martin, Jr., Roland E.

Gas separation: apparatus

Magnetic separating means

96 1TE, 96 27H, 350 35, G03G 1322

Patent

active

039727165

ABSTRACT:
A system for electrostatic photography using a camera having an aperture formed in one side for imaging light onto a photoconductive insulating layer positioned and supported in the camera housing to permit formation of an electrostatic latent image on dielectric film. A contact charging plate including a conductive layer and the photoconductive insulating layer is positioned in the camera so that light passing through the aperture is imaged onto the photoconductive layer. A dielectric camera "film" is positioned adjacent the photoconductive insulating layer and the film and photoconductive layer are pressure biased against each other. A voltage pulse is applied between conductive layers on either side of the dielectric film and photoconductive layer during exposure of the photoconductive layer to an image to establish on the film an electrostatic latent image which is developed with toner marking particles. In one embodiment a color encoding spatial filter is interposed in the path of light imaged on the photoconductive layer for color encoded electrostatic photography. In a preferred form, transparent film is used for developing image transparencies and subsequent printing in black and white and in color is accomplished by electrostatic printing.

REFERENCES:
patent: 2962374 (1960-11-01), Dessauer
patent: 3057275 (1962-10-01), Walkup et al.
patent: 3185051 (1965-05-01), Goffe
patent: 3504506 (1970-04-01), Macovski
yates, "Wave Front Image Formation", British Jour. of Phot., Apr. 22, 1968, pp. 328-331, 343.
Urbach et al., "Properties and Limitations of Hologram Recording Materials", Applied Optics, vol. 8, No. 11, Nov. 1969, pp. 2269-2281.
Schaffert, "Electrophotography", Focal Press, Sept. 1965, pp. 87-96.

Affiliated with

Also associated with

Rating

Color electrophotography using encoded multicolor information does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color electrophotography using encoded multicolor information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color electrophotography using encoded multicolor information will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1927193