Film pack

摘要

In an instant film pack of the type comprising a parallelepipedal housing having a flat top wall in which an exposure aperture is defined by a rectangular frame, and a pressure plate for urging instant film units obtained in the film pack against the frame for exposure. Structure is provided to prevent the surface of the film unit from receiving scratch marks when the film unit is withdrawn from the film pack. The scratch mark preventing structure comprises a plurality of prismatic protuberances arranged in a line transverse to the direction of film movement on the underside of the rear edge of the exposure aperture, the protuberances having ridge lines parallel to the direction of film movement.