Method of and apparatus for recording a halftone dot color image

Details Method of and apparatus for recording a halftone dot color image Method of and apparatus for recording a halftone dot color image

1988-12-08

1990-07-17

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 80, 355 32, 355 37, H04N 146

Patent

active

049424602

ABSTRACT:
Color separation image signals (Y, M, C, K) are converted into halftone dot image signals (Y.sub.d, M.sub.d, C.sub.d, K.sub.d) by a halftone block circuit (29). Red, green, blue and white beams are obtained from red, green and blue light sources (31R, 31G, 31B) or from a single white light source. These beams are modulated by acousto-optical modulators (32R, 32G, 32B, 35) responsive to the halftone dot image signals (Y.sub.d, M.sub.d, C.sub.d, K.sub.d) and thereafter converged onto a color photosensitive material (23), to produce a halftone dot color image on the color photosensitive material (23).

REFERENCES:
patent: 4462043 (1984-07-01), Saitou
patent: 4499489 (1985-02-01), Gall et al.
patent: 4681427 (1987-07-01), Plummer
patent: 4769696 (1988-09-01), Utsuda et al.

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