Camera which senses improper film loading

Details Camera which senses improper film loading Camera which senses improper film loading

1995-02-24

1996-08-20

Blankenship, Howard B.

354212, G03B 118

Patent

active

055483631

ABSTRACT:
A camera includes a blank advance device for advancing in blank a given amount of a film in the direction of film winding after a leader part of the film is pulled out from a cartridge, a discrimination circuit for making a discrimination between the adequacy and inadequacy of the film advancing action of the blank advance device, and a first control circuit arranged to cause the film to be rewound until the leader part of the film comes to a given position if the film advancing action of the blank advance device is determined to be inadequate by the discrimination circuit after the operation of the blank advance device.

REFERENCES:
patent: 4721973 (1988-01-01), Harvey
patent: 4992812 (1991-02-01), Smart
patent: 5235365 (1993-08-01), Takatori et al.
patent: 5255034 (1993-10-01), Shimada et al.

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