Continuous tone recording system incorporating feedback control

Details Continuous tone recording system incorporating feedback control Continuous tone recording system incorporating feedback control

1984-08-27

1986-04-15

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346109, 358298, H04N 122

Patent

active

045831289

ABSTRACT:
A continuous tone image recording system comprises a solid state laser diode capable of sending out an analog signal-controlled pulsed beam of light, a continuous feedback circuit for stabilizing the laser diode light output, and an optical system for changing the path of the beam of light. The laser beam scans across a photosensitive receptor surface to provide scanned lines, which are positioned along the length of the receptor surface so as to provide images containing at least 64 levels of gray on transparent recording media or at least 32 levels of gray on opaque media.

REFERENCES:
patent: 3811009 (1974-05-01), Fukumoto et al.
patent: 4028732 (1977-06-01), Salter et al.
patent: 4054928 (1977-10-01), Butler et al.
patent: 4175851 (1979-11-01), Kitamura et al.
patent: 4351005 (1982-09-01), Imai et al.
patent: 4434431 (1984-02-01), Ohkubo et al.
Performance Comparisons of Electrophotographic, Dry Silver, and Wet Processed Recording Media Exposed with Gas Laser and Laser Diode Light Sources for Image Recording, by: D. G. Herzog and L. W. Dobbins; 1983; vol. 390, SPIE Conference Proceedings, Los Angeles, CA.

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