发明名称 Blank film advance control device for camera
摘要 The present patent application discloses a blank film advance control device for a camera, in which when the film loading cover is closed, the film is automatically advanced a prescribed number of blank frames. The device is provided with means for memorizing the fact that the advancing of the blank frames has completed and means for coordinating the memorizing means with the film loading cover to restore the memorizing state of the memory means at least until the film is rewound. With this, even if the film loading cover is accidentally opened and closed again after the end of the blank film advance, the camera is prevented from performing faulty operations, for example, a second cycle of blank film advance. Instead, it carries out a proper different operation from the first cycle of blank film advance which took place after the film loading cover was closed for the first time.
申请公布号 US4982212(A) 申请公布日期 1991.01.01
申请号 US19880191732 申请日期 1988.05.02
申请人 CANON KABUSHIKI KAISHA 发明人 ALYFUKU, KIYOSHI
分类号 G03B17/42 主分类号 G03B17/42
代理机构 代理人
主权项
地址