Film cartridge indication control apparatus

Details Film cartridge indication control apparatus Film cartridge indication control apparatus

1996-10-07

2000-04-18

Metjahic, Safet

Photography

With film drive

Double exposure prevention

396395, G03B 1902

Patent

active

060525428

ABSTRACT:
An apparatus adapted to a film cartridge in which a film is contained, comprises an operation device which is operable for arbitrarily rewinding the film into the film cartridge before the film is wholly used, an indication device for causing the film cartridge to provide an indication that the film is partly used upon a film rewinding operation of the operation device and a determination device for determining whether a predetermined transporting action of the film is performed. The indication device causes the film cartridge to provide the indication that the film is wholly used, if the determination device determines that the predetermined transporting action of the film is not performed and the film has been rewound.

REFERENCES:
patent: 4502770 (1985-03-01), Niwa et al.
patent: 4779111 (1988-10-01), Ogawa et al.
patent: 4885599 (1989-12-01), Goto et al.
patent: 5255034 (1993-10-01), Shimada et al.
patent: 5649252 (1997-07-01), Takahashi et al.
Patent Abstracts of Japan No. JP 01-128055 A, published May 19, 1989.
Patent Abstracts of Japan No. JP 01-131537 A, published May 24, 1989.
Patent Abstracts of Japan No. JP 02-282735 A, published Nov. 20, 1990.

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