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    • 7. 发明授权
    • Camera system and camera
    • 相机系统和相机
    • US06999684B2
    • 2006-02-14
    • US10664339
    • 2003-09-16
    • Shigeki SatoToru KawaiMasanori IshikawaSeiichi Kashiwaba
    • Shigeki SatoToru KawaiMasanori IshikawaSeiichi Kashiwaba
    • G03B13/36
    • G03B3/00
    • A camera system which is capable of performing highly accurate focusing in a short time by using two kinds of AF methods, is disclosed. The camera system calculates the target driving amount of the focusing lens based on the result of detection by a first focus detection unit, and performs a first driving control to drive the focusing lens toward a position corresponding to the target driving amount and a second driving control to drive the focusing lens based on the result of detection by the second focus detection unit. When the remaining driving amount to the target driving amount of the focusing lens by the first driving control becomes a predetermined amount, the camera system switches from the first driving control to the second driving control without stopping the focusing lens.
    • 公开了一种能够通过使用两种AF方法在短时间内进行高精度聚焦的照相机系统。 相机系统基于第一焦点检测单元的检测结果来计算聚焦透镜的目标驱动量,并执行第一驱动控制以将聚焦透镜朝向与目标驱动量相对应的位置驱动,第二驱动控制 基于第二焦点检测单元的检测结果驱动聚焦透镜。 当通过第一驱动控制将与聚焦透镜的目标驱动量相对的剩余驱动量变为预定量时,照相机系统在不停止聚焦透镜的情况下将第一驱动控制切换到第二驱动控制。
    • 9. 发明授权
    • Camera system, camera and lens apparatus
    • 相机系统,相机和镜头设备
    • US06847785B2
    • 2005-01-25
    • US10664752
    • 2003-09-18
    • Seiichi KashiwabaToru KawaiMasanori IshikawaShigeki Sato
    • Seiichi KashiwabaToru KawaiMasanori IshikawaShigeki Sato
    • G02B7/08G02B7/09G02B7/28G03B13/36H04N5/232H04N101/00
    • G03B13/36
    • A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. The camera system comprises a focus detection unit detecting a focusing state of the image-taking optical system, a driving unit driving the focus lens unit, and a controller controlling the driving speed of the focus lens unit and controls the focus detection unit to perform a focus detection operation at least once while the focus lens unit is moved. The controller sets the driving speed of the focus lens unit at the time of at least a final focus detection operation while it is moved toward an in-focus position, to a speed decelerated from the driving speed before the final focus detection operation.
    • 公开了一种通过重叠控制以高精度控制聚焦透镜的驱动的相机系统。 相机系统包括具有摄像光学系统的镜头设备和可安装透镜设备的照相机。 相机系统包括检测摄像光学系统的聚焦状态的焦点检测单元,驱动聚焦透镜单元的驱动单元和控制聚焦透镜单元的驱动速度的控制器,并且控制焦点检测单元执行 焦距检测操作至少一次,同时聚焦透镜单元被移动。 控制器将聚焦透镜单元的驱动速度在至少最后的焦点检测操作时朝着对焦位置移动到从最终焦点检测操作之前的驱动速度减速的速度。