Camera with film take-up confirming mechanism

Details Camera with film take-up confirming mechanism Camera with film take-up confirming mechanism

1991-05-13

1992-11-24

Gellner, Michael L.

354213, 354215, G03B 118

Patent

active

051667150

ABSTRACT:
In a camera, a film presence sensing switch is located to detect the beginning of a full width main section of a filmstrip after a reduced width leading section of the filmstrip is wound at least partly onto a take-up spool. When a sufficient time has elapsed during the film winding operation for the reduced width section of the filmstrip to be wound onto the take-up spool, a motor drive for rotating the spool in a winding direction is de-energized should the switch fail to detect the beginning of the full width section of the filmstrip. Alternatively, the motor drive is allowed to remain energized to continue the film winding operation should the switch detect the beginning of the full width section.

REFERENCES:
patent: 4334753 (1982-06-01), Harvey
patent: 4440481 (1984-04-01), Hoda et al.
patent: 4492446 (1985-01-01), Zawodny et al.
patent: 4679926 (1987-07-01), Suzuki et al.
patent: 4697900 (1987-10-01), Eguchi et al.
patent: 4707096 (1987-11-01), Lawther
patent: 4721970 (1988-01-01), Beaver
patent: 4721973 (1988-01-01), Harvey
patent: 4728976 (1988-03-01), Takahashi et al.

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