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US 3,932,025 AGranted
Imaging system
AssigneeXerox Corporation
InventorsAndras I. Lakatos, John B. Flannery
Life of this patent
Estimating the term…
Abstract
There is disclosed an imaging system for forming a plurality of images on the same surface. The imaging system includes an electro-optic imaging member comprising a voltage or current-sensitive light modulating layer, a layer of photoconductive material which exhibits persistent photoconduction properties and a layer of material capable of generating photoinjection currents when struck by radiation which it absorbs.
Claims37
An imaging method comprising
- providing an imaging member comprising a voltage or current-sensitive light modulating layer overlying a layer of photoconductive material which exhibits persistent photoconduction which overlies a layer of a metal capable of generating photoinjection currents in response to radiation which it absorbs;
- applying an electrical field across said imaging member;
- exposing said photoconductive layer to a first image pattern of activating electromagnetic radiation;
- and
- exposing said photoinjection current generating metal layer to a second imagewise pattern comprising wavelengths of radiation which are absorbed by said layer whereby images corresponding to said first and second imagewise patterns are formed in said imaging member.
2 more elements
An imaging method comprising
- providing an imaging member comprising a voltage or current-sensitive light modulating layer overlying a layer of a photoconductive material which exhibits persistent photoconduction which overlies a layer of a metal capable of generating photoinjection currents in response to radiation which it absorbs;
- applying an electrical field across said imaging member;
- exposing said photoconductive layer to a first pattern of activating electromagnetic radiation which is provided by spatially modulating uniform activating electromagnetic radiation;
- exposing said photoinjection current generating metal layer to a second imagewise pattern comprising wavelengths of radiation which are absorbed by said layer whereby an image corresponding to said second imagewise pattern modulated by said first pattern is formed in said imaging member.
1 more element
Dependencies are inferred from the claim text.