Title:
【発明の名称】カメラ
Document Type and Number:
Japanese Patent JP2947259
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enlarge an effective photographing area with reference to film and to improve image quality by detecting magnetic information formed in a non-photographing area and controlling photographing. SOLUTION: The magnetic information formed in the non-photographing area is detected to control photographing. Namely, at the time of feeding the film, a roller and a magnet are rotated corresponding to the feeding of the film, and the rotation of the magnet is detected by a sensor 32, the detection output is counted by a counter 33, and the count output is supplied to a system controller 34. This controller 34 is provided to set the operation of the entire camera, for example, a diaphragm value and shutter speed. When the feeding amount of the film is detected based on the count output from the counter 33, the controller 34 controls the rotational amount of the driving motor 36 of a winding shaft through a dry amplifier 35 so that the detected value may be a counted value corresponding to the size of a frame.
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Inventors:
MURAKAMI SUSUMU
Application Number:
JP7377698A
Publication Date:
September 13, 1999
Filing Date:
March 23, 1998
Export Citation:
Assignee:
SONII KK
International Classes:
G03B17/00; G03B17/24; (IPC1-7): G03B17/24; G03B17/00
Attorney, Agent or Firm:
Hidekuma Matsukuma