Lens fitted film package

Details Lens fitted film package Lens fitted film package

1989-07-17

1990-10-02

Brown, Brian W.

354288, G03B 1100

Patent

active

049610856

ABSTRACT:
A lens-fitted film package comprising a light-tight case having at least a taking lens attached to a front wall thereof and a roll of film contained therein and a lens holder attached to the light-tight case. The lens holder is formed with a conversion lens holding opening for holding a conversion lens therein and a view-defining opening for defining the field of view of a viewfinder formed in the light-tight case. The lens holder is slidably moved with respect to the light-tight case so as to position the lens holder at a distance from the front wall of the light-tight case wherein the conversion lens changes the effective focal length of the taking lens and the view-defining opening defines the field of view of the viewfinder suitably for the effective focal length of the taking lens thus changed.

REFERENCES:
patent: 2926577 (1960-03-01), Albrecht
patent: 4219264 (1980-08-01), Rodeck
patent: 4666274 (1987-05-01), Maeno et al.
patent: 4728973 (1988-03-01), Taniguchi et al.

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