Camera with film sensor and driver to initiate closing of casset

Details Camera with film sensor and driver to initiate closing of casset Camera with film sensor and driver to initiate closing of casset

1996-01-24

1998-03-10

Metjahic, Safet

Photography

Camera detail

Body structure or housing

396513, G03B 1730

Patent

active

057272476

ABSTRACT:
A camera for use with a film cassette having a movable light lock supported to be moved closed after a filmstrip is wound into the cassette, comprises an actuator for closing the light lock. An ingress opening is provided for an insertion tool. The actuator includes a film sensor for sensing the presence of the filmstrip outside the cassette and for sensing the absence of the filmstrip outside the cassette once the filmstrip is wound into the cassette, a driver connected to the film sensor to move the light lock closed at least partway in response to the film sensor sensing the absence of the filmstrip outside the cassette, and an engageable portion that is accessible through the ingress opening when the driver moves the light lock closed at least partway to permit the tool to be inserted through the ingress opening to engage the engageable portion to cause the driver to move the lightlock closed completely and that is not accessible through the ingress opening when the film sensor senses the presence of the filmstrip outside the cassette to prevent the tool from being inserted through the ingress opening to engage the engageable portion.

REFERENCES:
patent: 4751536 (1988-06-01), Ohmura et al.
patent: 5231438 (1993-07-01), Smart
patent: 5235366 (1993-08-01), Kucmerowski
patent: 5357303 (1994-10-01), Wirt
patent: 5359378 (1994-10-01), Zander et al.
patent: 5384613 (1995-01-01), Cloutier et al.
patent: 5517270 (1996-05-01), Balling
patent: 5550608 (1996-08-01), Smar et al.
patent: 5555063 (1996-09-01), Belling
patent: 5602609 (1997-02-01), Balling

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