1982-05-18
1984-07-17
Gonzales, John
G03B 1750
Patent
active
044602545
ABSTRACT:
A self-processing type film unit for an instant camera having a pair of flexible sheets sandwiching a photosensitive layer forming an image forming area at the intermediate portion of the film unit is provided with a developing solution container at its leading end portion and a solution trapping member for trapping excess solution at its trailing end. Several film units are stacked in a package and put into the instant camera. The camera discharges the film units from the package one by one after exposure to light and then feeds them in between a pair of spreading rollers. The rollers rotate with the film unit pinched between them to discharge it outside the camera. When the film unit is passed between the rollers, the developing solution container is broken by the nipping force of the rollers to release the solution contained therein. The released solution is distributed over the image forming area to develop the image on the spot, pushed by the rollers. In such an instant camera, the film package is positioned in the camera with respect to the rollers so that at the time when the film unit is initially brought into contact with one of the rollers, one of the major surfaces of the unit lies in a plane offset from the plane perpendicular to the plane including both the longitudinal axes of the rollers and tangent to the spreading roller with which the one major surface of the film unit is to be brought into contact.
REFERENCES:
patent: 2972532 (1961-02-01), Land
patent: 3241468 (1966-03-01), Wolff
patent: 3690238 (1972-09-01), Nerwin
patent: 3948662 (1976-04-01), Alston et al.
Hara Yoshio
Shibata Tadayoshi
Fuji Photo Film Co. , Ltd.
Gonzales John
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