Lens-fitted photographic film unit for taking plural simultaneou

Details Lens-fitted photographic film unit for taking plural simultaneou Lens-fitted photographic film unit for taking plural simultaneou

1994-02-10

1995-03-21

Gellner, Michael L.

35419512, G03B 3508

Patent

active

054000971

ABSTRACT:
A lens-fitted photographic film unit is pre-loaded with photographic film. First and second stationary openings are formed respectively in front of first and second exposure chambers. A wide-angle taking lens is disposed in front of the first stationary opening, and has a shorter focal length. A telephoto taking lens is disposed in front of the second stationary opening, and has a longer focal length. In response to operation of a shutter release button, a single shutter plate slides horizontally. Wide-angle and telephoto movable openings are formed in the shutter plate and are registrable with the respective stationary openings. The telephoto movable opening is different in size from the wide-angle movable opening. When the shutter plate is slid, the movable openings open or close the stationary openings simultaneously, and expose the film to make two simultaneous exposures. In a preferred embodiment, the wide-angle lens is disposed behind the shutter plate. A transparent lens plate is disposed in front of the shutter plate to cover the shutter plate, and is provided with the telephoto lens.

REFERENCES:
patent: 3069987 (1962-12-01), Harrington
patent: 3563637 (1971-02-01), Ferguson
patent: 4564278 (1986-01-01), Ohmura
patent: 4589748 (1986-05-01), Ohmura
patent: 4884087 (1989-11-01), Mochida et al.
patent: 4972649 (1990-11-01), Mochida et al.
patent: 5047792 (1991-09-01), Asano et al.
patent: 5111223 (1992-05-01), Omura

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