Camera having chamber for storing exposed film units during thei

Details Camera having chamber for storing exposed film units during thei Camera having chamber for storing exposed film units during thei

1986-07-02

1987-05-12

Mathews, A. A.

3541731, 354212, G03B 1752

Patent

active

046644970

ABSTRACT:
An instant type camera having structure for moving an exposed self-developing type film unit from an exposure position within a film cassette to a lighttight imbibition chamber located behind the film cassette in which chamber the film unit remains during the formation of a visible image. A wall of the lighttight imbibition chamber includes a film loading door having a window therein for viewing a film unit located in the imbibition chamber. The window is provided with a blind which is operative to maintain the lighttightness of the chamber until the formation of the visible image within the film has been substantially completed. The blind is locked and maintained in its operative position until the formation of such image, whereupon the blind is released for movement to a position in which the film unit may be viewed in place through the window.

REFERENCES:
patent: 2794377 (1957-06-01), Fairbank
patent: 2819662 (1958-01-01), Land
patent: 2854903 (1958-10-01), Land et al.
patent: 3405619 (1968-10-01), Land
patent: 3426664 (1969-02-01), Norton
patent: 3446131 (1969-05-01), Cook et al.
patent: 3537370 (1970-11-01), Wareham
patent: 3683771 (1972-08-01), Land
patent: 3687032 (1972-08-01), Erlichman
patent: 4114166 (1978-09-01), Driscoll et al.
patent: 4265525 (1981-05-01), Stella et al.
patent: 4569578 (1986-02-01), Stella et al.

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