Optics: motion pictures – Removable film strip magazine type
Patent
1988-09-12
1989-08-22
Hix, L. T.
Optics: motion pictures
Removable film strip magazine type
354105, 354275, 352 78R, 352 92, 352235, 352236, G03B 700
Patent
active
048600377
ABSTRACT:
A film cassette contains a film spool which is rotatable in an unwinding direction to propel a filmstrip including an integral film leader out of the cassette and is rotatable in a winding direction to wind the filmstrip including its film leader back into the cassette. The film leader has a magnetic area on which alterable data can be magnetically written and read to indicate whether the filmstrip is completely exposed or is only partially exposed. Thus, when the film leader is wound into the cassette the data will be protected and when the film leader is propelled from the cassette the data will be made accessible to read and alter it.
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Brown Brian W.
Eastman Kodak Company
Fields Roger A.
Hix L. T,.
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