PURPOSE: To prevent erroneous detection, by detecting plural pieces of necessary information in their suitable methods.
CONSTITUTION: When a film is loaded and a start switch is operated, the 1st sensor 3 reads the number of frames which can be exposed and its information is stored in the memory 7. The 2nd sensor 4 reads the photographic speed of the film and its information is stored in the 2nd memory 8. After the storage of both pieces of information is completed, the film is exposed and a take-up mechanism operates to count the number of exposed frames by a counter 17. When all frames are exposed, the 2nd comparator 14 generates an output to stop winding. If the information on the number of frames is not read by the 1st sensor 3, a warning device 13 is operated at, for example, the 12th or 24th frame by the operation of a discriminating device 11 through the counter 17. Thus, plural pieces of information are read in their suitable methods and erroneous detection is prevented.
| JPH01289948 | FILM CONTAINER |
YONEDA OSAMU
OKABE NOBUO
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