公开(公告)号：US20120076482A1

公开(公告)日：2012-03-29

申请号：US13313258

申请日：2011-12-07

申请人： Kouji SHIBUNO ,  Mitsuyoshi OKAMOTO ,  Taizo AOKI

发明人： Kouji SHIBUNO ,  Mitsuyoshi OKAMOTO ,  Taizo AOKI

IPC分类号： G03B13/36

CPC分类号： G03B13/36 ,  G02B7/102

摘要： In a camera system according to the present invention, a lens controller obtains an exposure synchronizing signal that is generated by a camera controller from a camera body, causes a configuration formed of a first encoder, a second encoder and a counter to detect the position of a focus lens according to the obtained exposure synchronizing signal, and notifies the camera body of the detected position of the focus lens. The camera controller associates the position of the focus lens or the mechanism member obtained from the lens controller with an AF evaluation value based on the exposure synchronizing signal, and controls an autofocus operation of the camera system based on the position and AF evaluation value that are associated with each other. With this configuration, it is possible to improve the accuracy of an autofocus operation with a contrast system.

摘要翻译： 在根据本发明的照相机系统中，透镜控制器从照相机主体获得由照相机控制器生成的曝光同步信号，使得由第一编码器，第二编码器和计数器形成的配置来检测位置 根据所获得的曝光同步信号的对焦透镜，并向相机机体通知所检测到的聚焦透镜的位置。 照相机控制器将聚焦透镜或从透镜控制器获得的机构构件的位置与基于曝光同步信号的AF评估值相关联，并且基于位置和AF评估值来控制相机系统的自动对焦操作 相互联系。 利用该配置，可以提高对比度系统的自动对焦操作的精度。