Input and output flying spot scanning system

Details Input and output flying spot scanning system Input and output flying spot scanning system

1975-02-03

1977-03-15

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346108, 358302, H04N 584, H04N 308

Patent

active

040125858

ABSTRACT:
A flying spot scanning system is provided which is capable of scanning an unmodulated beam to a reading station for reading a stationary document and a modulated beam to an imaging station for recording an image thereat. The system utilizes optical elements which are common to both the unmodulated beam and the modulated beam to avoid duplication of elements of each beam. The beams strike the same facets of a rotating polygon scanner at the same location so that precise alignment of the facets will not be required. Relatively movable mirrors are moved across a stationary document at the reading station to provide a scan in such a manner to maintain optical conjugates constant.

REFERENCES:
patent: 3316348 (1967-04-01), Hufnagel
patent: 3330181 (1967-07-01), Jakobson
patent: 3465352 (1969-09-01), Carlson
patent: 3573849 (1971-04-01), Herriot
patent: 3752999 (1973-08-01), Sick
patent: 3877807 (1975-04-01), Kurita
"High-Resolution Graphics Using a Held Laser to Write on Kalvar Film" by Berg et al., July 1974, Journal of the SMPTE, vol. 83, p. 596.
"Laser Raster Scanner", by M. R. Latta, IBM Tech. Disc. Bul., vol. 13, No. 12, May 1971, pp. 3879-3880.
"Laser Raster Scanner With Separated Incident and Reflected Beams", by D. H. McMurtry, IBM Tech. Disc. Bul., vol. 14, No. 8, Jan. 1972, pp. 2460-2461.

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