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USRE35936E Visual exposure indicating system 失效
标题翻译：视觉曝光指示系统
公开(公告)号：USRE35936E
公开(公告)日：1998-10-27
申请号：US908423
申请日：1997-08-07
申请人： Anthony DiRisio , Edgar Gene Earnhart , Michael Thomas Wolf
发明人： Anthony DiRisio , Edgar Gene Earnhart , Michael Thomas Wolf
IPC分类号： G03B17/30 , G03B17/26
CPC分类号： G03B17/30 , G03B2217/263
摘要： A film cassette includes a cassette body, a film spool onto which can be wound a strip of film drive disk coupled directly to the film spool, and an indicator flex disk that includes a film status indicator tab whose position relative to a window of the film cassette indicates the film exposure status. The position of the film status indicator tab is changed when the flex disk is moved into engagement with the drive disk and the film spool is rotated upon film movement. The film status indicator tab otherwise does not engage the drive disk and therefore does not change position. The cassette is particularly suited for operation with a photographic camera that includes a camera body, a loading chamber in the camera body that receives the film cassette, and a loading chamber cover having at least one movable indicator release pin that moves the flex disk into and out of engagement with the drive disk and thereby changes the position of the film status indicator tab. A camera controller determines the film status and controls the movement of the indicator release pin to selectively change the position of the film status indicator tab in accordance with the film status.
摘要翻译：胶卷盒包括盒体，胶片卷筒，可在其上缠绕直接连接到胶片卷轴上的胶片驱动盘条，以及包括胶片状态指示片的指示器弯曲盘，该胶片状态指示卡片相对于胶片的窗口的位置纸盒表示胶片曝光状态。当柔性盘移动到与驱动盘接合并且胶片卷轴在胶片移动时旋转时，胶片状态指示标签的位置被改变。胶片状态指示标签否则不接合驱动盘，因此不会改变位置。盒式录像带特别适用于摄像机的操作，照相机包括照相机主体，照相机主体中的收纳胶片暗盒的装载室，以及装载室盖，其具有至少一个活动指示器释放销，与驱动盘不接合，从而改变胶片状态指示标签的位置。相机控制器确定胶片状态并控制指示剂释放销的移动，以根据胶片状态选择性地改变胶片状态指示标签的位置。

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