Lens-fitted photo film unit for use with taking lenses of differ

Details Lens-fitted photo film unit for use with taking lenses of differ Lens-fitted photo film unit for use with taking lenses of differ

1994-10-26

1996-11-19

Metjahic, Safet

Photography

Disposable or recyclable camera

396351, 396378, 396535, 396538, G03B 1302, G03B 1702

Patent

active

055767826

ABSTRACT:
A lens-fitted photo film unit includes a taking lens, a film containing section, and an exposure unit secured in front of the film containing section. An exposure aperture is formed in the film containing section, which also includes a supply chamber and a take-up chamber. The supply chamber contains unexposed photo film. The take-up chamber is adapted to winding the photo film after exposure. The supply chamber and the take-up chamber are disposed beside the exposure aperture opposite to one another. The exposure unit includes a shutter device. An exposure tunnel is formed through the exposure unit and around a light path from the taking lens toward the exposure aperture, and protects the light path from ambient light. The exposure tunnel extends to the rear of the unit so that any of a variety of different exposure units can be used, depending on the focal length of the taking lens. The exposure unit is connected to the film containing section by hooks on the latter that extend outwardly away from each other in opposite directions, so that flexure of the unit will not disengage the hooks. The plural different exposure units will have viewfinders located at different positions on the unit, so that the rear wall of the unit has plural differently disposed viewfinder eyepiece openings of which only one is exposed through an opening in a cardboard cover, depending on which type of exposure unit is used.

REFERENCES:
patent: 4884087 (1989-11-01), Mochida et al.
patent: 4972649 (1990-11-01), Mochida et al.
patent: 5084719 (1992-01-01), Hara et al.
patent: 5343205 (1994-08-01), Oi et al.
patent: 5381200 (1995-01-01), Takagai
patent: 5436685 (1995-07-01), Yamashina

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