发明授权
- 专利标题: Camera using film having magnetic recording portion
- 专利标题(中): 相机使用具有磁记录部分的胶片
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申请号: US80227申请日: 1993-06-21
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公开(公告)号: US5343264A公开(公告)日: 1994-08-30
- 发明人: Junichi Itoh , Masahiro Dai , Yoji Watanabe
- 申请人: Junichi Itoh , Masahiro Dai , Yoji Watanabe
- 申请人地址: JPX Tokyo
- 专利权人: Olympus Optical Co., Ltd.
- 当前专利权人: Olympus Optical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX4-167463 19920625
- 主分类号: G03B17/24
- IPC分类号: G03B17/24 ; G03B17/00 ; G03B17/26 ; G03B29/00
摘要:
This invention relates to a camera using a film having a magnetic recording portion, which has magnetic heads for recording/reading data on/from a magnetic recording portion formed on part of a photosensitive film, which magnetic heads can be urged/withdrawn against/from the film. In this camera, data representing the number of times that a film feed operation or a photographic operation is performed is stored in a storage unit, and necessity to clean the magnetic heads is determined on the basis of the data. If it is determined that cleaning must be performed, a warning unit performs a warning display or inhibits a photographic operation.
公开/授权文献
- USD401176S Transmitter and receiver for tracking personal articles 公开/授权日:1998-11-17
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