Lens-fitted photographic film package

Details Lens-fitted photographic film package Lens-fitted photographic film package

1990-02-07

1992-01-28

Hix, L. T.

354150, 354254, 354288, G03B 2122

Patent

active

050847198

ABSTRACT:
A lens-fitted photographic film package has a talking lens, a shutter and a film advancing mechanism incorporated therein and is loaded with film. The taking lens is disposed at the upper side of a casing of the film package and a first mirror is disposed behind the taking lens. A second mirror is disposed below the taking lens inside the casing. A Z-shaped exposure light path is thus formed by the first and second mirrors. On the inner wall surface of an exposure chamber for conducting the exposure light, there are formed a number of ridges extending in a direction parallel to the path of travel of the exposure light which reduce internal reflection within the exposure chamber. The mirrors are pressed by respective mirror hold-down members from the outside against respective mirror frames, and the mirror hold-down members are shaded with respective shading covers from ambient light.

REFERENCES:
patent: 3446132 (1989-05-01), Fauth
patent: 4057815 (1977-11-01), Johnson
patent: 4772903 (1988-09-01), Labaziewicz
patent: 4884087 (1989-11-01), Mochida et al.

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