Fuji Photo Film Company, Limited

Norio Hirasaki

Junichi Takagi

A panoramic lens-fitted photographic film package with a flash unit. A charge switch of the flash unit is actuated by depressing or sliding a charge switch plate which is formed in one of a pair of grips disposed on the front wall of the film package. A synchro-flash switch of the flash unit includes first and second contact segments extending parallel to each other toward a between-lens-shutter mechanism. The first contact segment is depressed by an arm portion formed integrally on a connecting lever of the shutter mechanism when the connecting lever is struck by an actuating lever to move a shutter blade to open an exposure opening, upon a shutter release operation being effected. The depressed first contact segment is brought into contact with the second contact segment, thereby outputting a synchro-flash signal. A light projector of the flash unit has a discharge tube, a reflector and a diffusion plate. The reflector is formed by shearing and folding a sheet material, and has splayed side reflection surfaces adapted to increase the horizontal illuminating angle. The diffusion plate is adapted to limit the vertical illuminating angle.

Lens-fitted photographic film package and flash unit

A film package comprises an exposure frame member having a first rectangular opening disposed directly before the film for defining an exposed area of the film. A light-shielding member having a second rectangular opening for allowing only necessary exposure light to travel toward the first opening therethrough, is mounted on the exposure frame member before the exposure frame member is mounted on the rear side of an exposure chamber, on the front of which a taking lens system is mounted. A pair of positioning members is formed on the front wall of the film package integrally therewith, for designating the position of the user's fingers when the film package is gripped. A between-the-lenses shutter includes a V-shaped shutter blade of which one end is pivoted and the other end opens and closes the aperture, and a connecting lever pivotally mounted on the side of the V-shaped blade opposite the spacing member, one end of the connecting lever being engaged with the elbow of the V-shaped blade, and the other end of the connecting lever being struck by an actuating lever upon depression of a shutter release button. The connecting lever overlaps the V-shaped blade in an area from the elbow to the one end of the V-shaped blade, so that the shutter blade will not oscillate in the direction of the optical axis.

Growing community of inventors

Saitama, Japan

Norio Hirasaki