Ion modulator device and method of using in positive and negativ

Details Ion modulator device and method of using in positive and negativ Ion modulator device and method of using in positive and negativ

1975-05-02

1976-03-09

Martin, Jr., Roland E.

Gas separation: apparatus

Magnetic separating means

96 1R, 96 18, 355 3R, 346 74ES, G03G 504, G03G 1322

Patent

active

039429806

ABSTRACT:
An ion modulator of improved sensitivity and capable of producing copies of excellent quality is provided in the form of a conductive metal screen which is coated with a photoconductor or insulator and having a supplementary electrode forming an integral part thereof. The supplementary electrode functions to provide a positive or negative bias potential resulting in a larger transmission coefficient, better gray scale, improved light sensitivity, and the ability to operate in both positive and negative modes.

REFERENCES:
patent: 3645614 (1972-02-01), McFarlane et al.
patent: 3647291 (1972-03-01), Pressman et al.
patent: 3680954 (1972-08-01), Frank
patent: 3694200 (1972-09-01), Pressman
patent: 3713734 (1973-01-01), Crane et al.
patent: 3737222 (1973-06-01), Briggs
patent: 3773417 (1973-11-01), Pressman et al.
patent: 3796490 (1974-03-01), Pressman
patent: 3797926 (1974-03-01), Fotland et al.
patent: 3824010 (1974-07-01), Pressman

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