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1. 发明授权

US08670063B2 Focus detection apparatus and focus detection method 有权
标题翻译：焦点检测装置和焦点检测方法
公开(公告)号：US08670063B2
公开(公告)日：2014-03-11
申请号：US13325667
申请日：2011-12-14
申请人： Daisuke Wakamiya , Takeshi Ogawa
发明人： Daisuke Wakamiya , Takeshi Ogawa
IPC分类号： H04N5/232
CPC分类号： H04N5/23212 , H04N5/3696
摘要： A focus detection apparatus comprises: an image sensor that receives images that are formed by light that passes through different pupil regions of a photographing optical system including a focus lens, and outputs a pair of image signals; a control unit that controls to acquire a pair of image signals from the image sensor at first and second lens positions of the focus lens; a conversion unit that, by multiplying a shift amount between a pair of images representing the pair of image signals by a conversion coefficient, converts the shift amount to a defocus amount; and a calculation unit that calculates the conversion coefficient based on displacement amounts of respective ones of the pair of images representing the pair of image signals acquired at the first and second lens positions, and a displacement amount of the focus lens from the first lens position to the second lens position.
摘要翻译：焦点检测装置包括：图像传感器，其接收由穿过包括聚焦透镜的拍摄光学系统的不同瞳孔区域的光形成的图像，并输出一对图像信号; 控制单元，其控制在所述聚焦透镜的第一和第二透镜位置处获取来自所述图像传感器的一对图像信号; 转换单元，通过将表示所述一对图像信号的一对图像之间的偏移量乘以转换系数，将所述偏移量转换为散焦量; 以及计算单元，其基于表示在第一和第二透镜位置处获取的一对图像信号的一对图像中的各个图像的位移量以及聚焦透镜从第一透镜位置到第二透镜位置的位移量来计算转换系数第二个镜头位置。

2. 发明申请

US20120162493A1 FOCUS DETECTION APPARATUS AND FOCUS DETECTION METHOD 有权
标题翻译：聚焦检测装置和聚焦检测方法
公开(公告)号：US20120162493A1
公开(公告)日：2012-06-28
申请号：US13325667
申请日：2011-12-14
申请人： Daisuke Wakamiya , Takeshi Ogawa
发明人： Daisuke Wakamiya , Takeshi Ogawa
IPC分类号： H04N5/232
CPC分类号： H04N5/23212 , H04N5/3696
摘要： A focus detection apparatus comprises: an image sensor that receives images that are formed by light that passes through different pupil regions of a photographing optical system including a focus lens, and outputs a pair of image signals; a control unit that controls to acquire a pair of image signals from the image sensor at first and second lens positions of the focus lens; a conversion unit that, by multiplying a shift amount between a pair of images representing the pair of image signals by a conversion coefficient, converts the shift amount to a defocus amount; and a calculation unit that calculates the conversion coefficient based on displacement amounts of respective ones of the pair of images representing the pair of image signals acquired at the first and second lens positions, and a displacement amount of the focus lens from the first lens position to the second lens position.
摘要翻译：焦点检测装置包括：图像传感器，其接收由穿过包括聚焦透镜的拍摄光学系统的不同瞳孔区域的光形成的图像，并输出一对图像信号; 控制单元，其控制在所述聚焦透镜的第一和第二透镜位置处获取来自所述图像传感器的一对图像信号; 转换单元，通过将表示所述一对图像信号的一对图像之间的偏移量乘以转换系数，将所述偏移量转换为散焦量; 以及计算单元，其基于表示在第一和第二透镜位置处获取的一对图像信号的一对图像中的各个图像的位移量以及聚焦透镜从第一透镜位置到第二透镜位置的位移量来计算转换系数第二个镜头位置。

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