公开(公告)号：US20140111628A1

公开(公告)日：2014-04-24

申请号：US14145184

申请日：2013-12-31

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO ,  Keiji HIGUCHI

IPC: H04N5/232 ,  H04N7/18 ,  G03B13/36

CPC classification number: H04N5/23212 ,  A61B1/00188 ,  A61B1/05 ,  G02B7/102 ,  G02B23/2438 ,  G02B23/2469 ,  G03B13/36 ,  H04N5/23296 ,  H04N7/183 ,  H04N2005/2255

Abstract: A focus control device, an endoscope system, a focus control method, and the like can implement an autofocus operation in an appropriate state by setting a focus mode of an imaging optical system. The focus control device includes a focus control section that controls a focus of an imaging optical system that includes at least a zoom lens that adjusts an optical magnification, and sets a focus mode of the imaging optical system, and an image acquisition section that acquires an image through the imaging optical system, the focus mode including a fixed focus mode and an autofocus (AF) mode, and the focus control section switching the focus mode between the fixed focus mode and the AF mode corresponding to whether the zoom lens is positioned on a wide-angle side or a telescopic side relative to a reference point that is situated between a wide-angle end and a telescopic end.

Abstract translation: 聚焦控制装置，内窥镜系统，聚焦控制方法等可以通过设置成像光学系统的聚焦模式，在适当的状态下实现自动聚焦操作。 焦点控制装置包括：焦点控制部，其控制成像光学系统的焦点，该成像光学系统至少包括调整光学倍率的变焦镜头，并且设定成像光学系统的聚焦模式;以及图像获取部， 通过成像光学系统的图像，聚焦模式包括固定对焦模式和自动对焦（AF）模式，并且聚焦控制部分在对焦于变焦镜头位于的固定对焦模式和AF模式之间切换对焦模式 相对于参考点的广角侧或伸缩侧，其位于广角端和伸缩端之间。