Film scanning system and method

Details Film scanning system and method Film scanning system and method

1994-06-30

1996-11-05

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358487, 358490, 358493, 358496, 396639, 396642, 396646, 396651, H04N 104, G03D 1302, G03D 1308, G03D 1314

Patent

active

055723390

ABSTRACT:
A scanner housing encloses a rotatable cylindrical drum, the outer surface having opposing rims or hubs which support respective outer edges of a film strip or slide to be scanned. The edges of the film are releasably held flat against respective rims by means of bands contacting respective radially outer edges of the film to maintain them against the respective outer rim surfaces of the drum whereby the film rotates with the drum's rotation past a scanner assembly. The scanner assembly is disposed internally of the housing adjacent one outer side of the drum and includes a linear array scanning transducer. A light source is located adjacent an opposing outer side of the drum at a location substantially diametrically opposed from the scanner assembly. A focusing lens assembly is disposed internally of the drum between the light source and the scanner assembly. The film being carried on the outer circumference of the rotating drum as the drum rotates, passes adjacent the light source. Light from the source thereby is directed from the light source through the film, the lens assembly, and impinges upon the scanning array whereupon the portion of the film adjacent the light source is thereby scanned.

REFERENCES:
patent: 2435250 (1948-02-01), Tandler et al.
patent: 3958250 (1976-05-01), Rolon
patent: 4725891 (1988-02-01), Manian

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