Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1976-02-02
1978-08-15
Martin, John C.
Facsimile and static presentation processing
Facsimile
Recording apparatus
H04N 308
Patent
active
041077407
ABSTRACT:
A scanning system is disclosed for translucent or X-ray or unexposed film which circumvents the need for a wide angle, large entrance pupil lens as used in the conventional oscillating mirror scanning system. The scanning system is divided into two distinct and separate systems including a scanning optical system having an oscillating mirror which includes in its assembly a single element meniscus lens serving as an objective or first lens in the system. Coupled to the oscillating mirror assembly is a slotted aperture plate located at the image focal point which establishes the "X" dimension of the scanned element area upon the film. The aperture plate is moved in parallel along the scanning optical axis to follow the focal point as the distance from the objective lens to the scanned element area varies during the sweep of a scanned line. An illuminating optical system establishes the "Y" dimension of the scanned element area in the scanned line upon the film.
REFERENCES:
patent: 1740490 (1929-12-01), Wright et al.
patent: 1857130 (1932-05-01), Alexanderson
patent: 2394649 (1946-02-01), Young
patent: 3437796 (1969-04-01), Lapornik
Sears et al., University Physics, Addison-Wesley Publishing Co., 1955, pp. 764-772.
Carpenter M. Michael
Martin John C.
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