Film end detecting device of camera

Details Film end detecting device of camera Film end detecting device of camera

1995-06-07

1996-04-09

Gellner, Michael L.

354213, 354218, G03B 118, G03B 100, G03B 160

Patent

active

055066488

ABSTRACT:
A film end detecting device of a camera, used for a film in which film aligning perforations are regularly formed in units of frames, includes: a winding device for winding the film, which has an end detection perforation formed at an interval smaller than the predetermined interval on a film end side of the film aligning perforation of the last frame; a detection device for detecting the perforations of the film; a time measuring device for, when the film is wound, measuring a time from when a given film aligning perforation is detected until the next perforation is detected; and a signal output device for, when the time measured by the time measuring device is shorter than a predetermined reference time, outputting a film end detection signal.

REFERENCES:
patent: 4400074 (1983-08-01), Akiyama et al.
patent: 4417793 (1983-11-01), Oyokota et al.
patent: 4572637 (1986-02-01), Inoue
patent: 4664491 (1987-05-01), Kazumi et al.
patent: 4857946 (1989-08-01), Tominaga et al.
patent: 4860039 (1989-08-01), Hata et al.
patent: 4864332 (1989-09-01), Harvey
patent: 4885599 (1989-12-01), Goto et al.
patent: 4967217 (1990-10-01), Yamamoto et al.
patent: 5019843 (1991-05-01), Ogawa et al.
patent: 5124735 (1992-06-01), Tsukahara et al.
patent: 5130728 (1992-07-01), Goto et al.

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