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US 3,947,852 AGranted
Electron image recorder with semiconductive image intensifier
AssigneeThe United States of America as represented by the Secretary of the Army
InventorCharles M. Redman
Life of this patent
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Abstract
An optical or photon image is converted by a photocathode to an electron ge. A semiconductor plate receives the electron image on a first side thereof. For an electronically controlled time, the image is integrated and stored in thousands of reversed biased PN junctions connected to micro-sized conductors, in the plate. An intensified image is then transfered from a second side of the plate at an electrically controlled time to adjacent moving film which is exposed to intensified images from the plate.
Claims2
An electron image recorder comprising:
- means for converting an input image to an electron image;
- means positioned in the path of the electron image for storing and integrating the image during a first time interval, and transferring an intensified electron image therefrom during a second time interval;
- and
- means, positioned in a path receiving the transferred electron image, for supporting electron sensitive film;
- further, the integratng and storing means comprising:
- first and second spaced conducting grids;
- P and N semiconductor caps positioned in aligned spaced relationship to each other, the N caps located in a first plane while the P caps are located in a second plane, the P and N semiconductor caps further being positioned inwardly of the conducting grids and insulated from the conducting grids;
- conductor means located inwardly of the conducting grids and connected between the P and N semiconductor caps;
- P and N semiconductor biasing means connected between the conductor grid and respectively adjacent N and P semiconductor caps creating respective PN junctions therebetween for storing electrons therein during the first time interval;
- and
- means connected to the conductor grids for biasing the grids and causing emission of stored electrons into space during the second time interval.
8 more elements
Dependencies are inferred from the claim text.