Apparatus having a judging device whether a film frame is expose

Details Apparatus having a judging device whether a film frame is expose Apparatus having a judging device whether a film frame is expose

1997-01-29

2000-04-25

Metjahic, Safet

Photography

Exposure data from film itself

396319, 396311, G03B 1724

Patent

active

060553820

ABSTRACT:
An apparatus having a judging device judges whether a film frame is exposed or not by detecting that a magnetically recorded signal exists or not on a magnetic recording section arranged correspondingly on each frame of a film. The device judges, when it is judged that one frame is an unexposed frame by detecting no recorded signal on the magnetic recording section, whether a following frame is exposed or not. And, if it is judged that the following frame is also an unexposed frame, it is judged that the previous frame is not exposed. Thus, an accurate judgment of an unexposed frame and film feeding of a head frame of unexposed frames to a photographing position can be achieved.

REFERENCES:
patent: 5281987 (1994-01-01), Nagata
patent: 5416545 (1995-05-01), Izukawa
patent: 5614969 (1997-03-01), Izukawa
patent: 5617161 (1997-04-01), Serita et al.

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