公开(公告)号：US20060120710A1

公开(公告)日：2006-06-08

申请号：US11244509

申请日：2005-10-05

申请人： Akihiko Nagano ,  Makoto Takamiya ,  Koichi Washisu

发明人： Akihiko Nagano ,  Makoto Takamiya ,  Koichi Washisu

IPC分类号： G03B13/00

CPC分类号： G02B5/1833 ,  G02B5/3016 ,  G02B7/343 ,  G03B13/06 ,  G03B13/36 ,  G03B19/12

摘要： There is provided an optical apparatus that provides quick and precise TTL phase difference detection and pupil slicing focus detection. An optical apparatus includes a first optical element for splitting a first polarized light component contained in light that passes an exit pupil of a first optical system and directs to a photoelectric conversion element so that the first polarized light component direct to different light-receiving areas on the photoelectric conversion element. The optical apparatus may further include a second optical element for separating a second polarized light component contained in the light from said first optical element, from the first polarized light component.

公开(公告)号：US07616879B2

公开(公告)日：2009-11-10

申请号：US11244509

申请日：2005-10-05

申请人： Akihiko Nagano ,  Makoto Takamiya ,  Koichi Washisu

发明人： Akihiko Nagano ,  Makoto Takamiya ,  Koichi Washisu

IPC分类号： G02B7/28

CPC分类号： G02B5/1833 ,  G02B5/3016 ,  G02B7/343 ,  G03B13/06 ,  G03B13/36 ,  G03B19/12

摘要： There is provided an optical apparatus that provides quick and precise TTL phase difference detection and pupil slicing focus detection. An optical apparatus includes a first optical element for splitting a first polarized light component contained in light that passes an exit pupil of a first optical system and directs to a photoelectric conversion element so that the first polarized light component direct to different light-receiving areas on the photoelectric conversion element. The optical apparatus may further include a second optical element for separating a second polarized light component contained in the light from said first optical element, from the first polarized light component.

摘要翻译： 提供了一种提供快速和精确的TTL相位差检测和瞳孔切片焦点检测的光学装置。 一种光学装置包括：第一光学元件，用于分离包含在通过第一光学系统的出射光瞳的光中的第一偏振光分量，并引导到光电转换元件，使得第一偏振光分量直接导向不同的光接收区域 光电转换元件。 光学装置还可以包括用于将包含在光中的第二偏振光分量与第一偏振光分量分离的第二光学元件。

公开(公告)号：US08913175B2

公开(公告)日：2014-12-16

申请号：US13119336

申请日：2009-11-11

申请人： Akihiko Nagano ,  Ichiro Onuki ,  Makoto Takamiya ,  Makoto Oikawa ,  Yoshitaka Hashimoto ,  Fumihiro Kajimura ,  Yasuo Suda

发明人： Akihiko Nagano ,  Ichiro Onuki ,  Makoto Takamiya ,  Makoto Oikawa ,  Yoshitaka Hashimoto ,  Fumihiro Kajimura ,  Yasuo Suda

IPC分类号： H04N5/225 ,  H01L27/146 ,  H04N9/04 ,  G02B5/00 ,  H04N5/369 ,  H04N5/232 ,  G02B5/20 ,  G02B7/34 ,  G02B3/00

CPC分类号： H01L27/14627 ,  G02B3/0056 ,  G02B5/003 ,  G02B5/005 ,  G02B5/201 ,  G02B7/346 ,  H01L27/14623 ,  H04N5/23212 ,  H04N5/3696 ,  H04N9/045

摘要： An image sensor that output a signal for detecting a focus state of a photographing lens. The image sensor includes a microlens; a light-receiving pixel; a first focus state detection pixel pair for outputting a focus state detection signal, in which aperture areas of the first focus state detection pixel pair are small in comparison to the light-receiving pixel; and a second focus state detection pixel pair for outputting a focus state detection signal, in which aperture areas of the second focus state detection pixel pair are small in comparison to the light-receiving pixel, wherein the second focus state detection pixel pair is arranged at a position that is shifted by a predetermined amount relative to each aperture position, with respect to the microlens of the first focus state detection pixel pair.

摘要翻译： 输出用于检测拍摄镜头的聚焦状态的信号的图像传感器。 图像传感器包括微透镜; 光接收像素; 第一焦点状态检测像素对，用于输出聚焦状态检测信号，其中第一焦点状态检测像素对的开口面积与光接收像素相比较小; 以及第二焦点状态检测像素对，用于输出焦点状态检测信号，其中第二聚焦状态检测像素对的开口面积与光接收像素相比较小，其中第二聚焦状态检测像素对布置在 相对于第一聚焦状态检测像素对的微透镜相对于每个孔径位置偏移预定量的位置。

公开(公告)号：US20110273602A1

公开(公告)日：2011-11-10

申请号：US13144840

申请日：2010-02-23

申请人： Makoto Takamiya ,  Akihiko Nagano

发明人： Makoto Takamiya ,  Akihiko Nagano

IPC分类号： H04N5/335

CPC分类号： H04N5/23212 ,  H04N5/3696 ,  H04N5/37457 ,  H04N2101/00

摘要： A camera 200 comprises an image pickup element 107 which has imaging pixels performing a photoelectric conversion of an object image formed by a light beam emitted from an image pickup optical system and focus detection pixels performing a photoelectric conversion of two images formed by two divided light beams, a focus detector which obtains first and second pairs of image signals having optical base lengths different from each other from the focus detection pixels, a selector which selects one of the first and second pairs of image signals based on at least one correlation amount of the first and second pairs of image signals, and a calculator which calculates a defocus amount based on the selected pair of image signals.

摘要翻译： 相机200包括图像拾取元件107，其具有执行由从摄像光学系统发射的光束形成的物体图像的光电转换的成像像素和执行由两个分割光束形成的两个图像的光电转换的焦点检测像素 获取具有与焦点检测像素彼此不同的光学基准长度的第一和第二对图像信号的聚焦检测器，选择器，其基于至少一个相关量来选择第一和第二对图像信号中的一个; 第一和第二对图像信号，以及基于所选择的一对图像信号计算散焦量的计算器。

公开(公告)号：US20110025904A1

公开(公告)日：2011-02-03

申请号：US12921466

申请日：2009-03-06

申请人： Ichiro Onuki ,  Akihiko Nagano ,  Makoto Takamiya

发明人： Ichiro Onuki ,  Akihiko Nagano ,  Makoto Takamiya

IPC分类号： H04N5/225

CPC分类号： H04N5/23212 ,  G02B7/34 ,  G02B7/346 ,  G03B13/36 ,  H04N5/3696 ,  H04N2101/00

摘要： A focus detection device having imaging pixels and focus-detecting pixels using a phase-difference focus detection method implements high-precision focus detection. In the focus detection device, a plurality of pixels each having a photoelectric conversion unit for converting an incident light flux into signal charges, and a microlens having a focus position near the photoelectric conversion unit are arranged. The plurality of pixels include a plurality of imaging pixels for generating a shot image, and a plurality of focus-detecting pixels for generating an image signal for focus detection by the phase-difference focus detection method. An opening for giving a pupil division function to the focus-detecting pixel is formed using electrodes arranged to read out signal charges from the photoelectric conversion unit.

摘要翻译： 具有成像像素和使用相位差焦点检测方法的聚焦检测像素的焦点检测装置实现高精度聚焦检测。 在焦点检测装置中，配置有具有用于将入射光束转换为信号电荷的光电转换单元的多个像素和具有靠近光电转换单元的聚焦位置的微透镜。 多个像素包括用于产生镜头图像的多个成像像素和用于通过相位差焦点检测方法生成用于焦点检测的图像信号的多个焦点检测像素。 使用用于从光电转换单元读出信号电荷的电极形成用于向焦点检测像素提供光瞳分割功能的开口。

公开(公告)号：US08711270B2

公开(公告)日：2014-04-29

申请号：US12921466

申请日：2009-03-06

申请人： Ichiro Onuki ,  Akihiko Nagano ,  Makoto Takamiya

发明人： Ichiro Onuki ,  Akihiko Nagano ,  Makoto Takamiya

IPC分类号： H04N5/232 ,  H04N5/225

CPC分类号： H04N5/23212 ,  G02B7/34 ,  G02B7/346 ,  G03B13/36 ,  H04N5/3696 ,  H04N2101/00

摘要： A focus detection device having imaging pixels and focus-detecting pixels using a phase-difference focus detection method implements high-precision focus detection. In the focus detection device, a plurality of pixels each having a photoelectric conversion unit for converting an incident light flux into signal charges, and a microlens having a focus position near the photoelectric conversion unit are arranged. The plurality of pixels include a plurality of imaging pixels for generating a shot image, and a plurality of focus-detecting pixels for generating an image signal for focus detection by the phase-difference focus detection method. An opening for giving a pupil division function to the focus-detecting pixel is formed using electrodes arranged to read out signal charges from the photoelectric conversion unit.

摘要翻译： 具有成像像素和使用相位差焦点检测方法的聚焦检测像素的焦点检测装置实现高精度聚焦检测。 在焦点检测装置中，配置有具有用于将入射光束转换为信号电荷的光电转换单元的多个像素和具有靠近光电转换单元的聚焦位置的微透镜。 多个像素包括用于产生镜头图像的多个成像像素和用于通过相位差焦点检测方法生成用于焦点检测的图像信号的多个焦点检测像素。 使用用于从光电转换单元读出信号电荷的电极形成用于向焦点检测像素提供光瞳分割功能的开口。

公开(公告)号：US08614755B2

公开(公告)日：2013-12-24

申请号：US13144840

申请日：2010-02-23

申请人： Makoto Takamiya ,  Akihiko Nagano

发明人： Makoto Takamiya ,  Akihiko Nagano

IPC分类号： H04N5/232 ,  H04N9/083 ,  H04N3/14 ,  H04N5/335 ,  H04N3/16 ,  G03B13/00

CPC分类号： H04N5/23212 ,  H04N5/3696 ,  H04N5/37457 ,  H04N2101/00

摘要： A camera 200 comprises an image pickup element 107 which has imaging pixels performing a photoelectric conversion of an object image formed by a light beam emitted from an image pickup optical system and focus detection pixels performing a photoelectric conversion of two images formed by two divided light beams, a focus detector which obtains first and second pairs of image signals having optical base lengths different from each other from the focus detection pixels, a selector which selects one of the first and second pairs of image signals based on at least one correlation amount of the first and second pairs of image signals, and a calculator which calculates a defocus amount based on the selected pair of image signals.

摘要翻译： 相机200包括图像拾取元件107，其具有执行由从摄像光学系统发射的光束形成的物体图像的光电转换的成像像素和执行由两个分割光束形成的两个图像的光电转换的焦点检测像素 获取具有与焦点检测像素彼此不同的光学基准长度的第一和第二对图像信号的聚焦检测器，选择器，其基于至少一个相关量来选择第一和第二对图像信号中的一个; 第一和第二对图像信号，以及基于所选择的一对图像信号计算散焦量的计算器。

公开(公告)号：US20110169997A1

公开(公告)日：2011-07-14

申请号：US13119336

申请日：2009-11-11

申请人： Akihiko Nagano ,  Ichiro Onuki ,  Makoto Takamiya ,  Makoto Oikawa ,  Yoshitaka Hashimoto ,  Fumihiro Kajimura ,  Yasuo Suda

发明人： Akihiko Nagano ,  Ichiro Onuki ,  Makoto Takamiya ,  Makoto Oikawa ,  Yoshitaka Hashimoto ,  Fumihiro Kajimura ,  Yasuo Suda

IPC分类号： H04N5/225

CPC分类号： H01L27/14627 ,  G02B3/0056 ,  G02B5/003 ,  G02B5/005 ,  G02B5/201 ,  G02B7/346 ,  H01L27/14623 ,  H04N5/23212 ,  H04N5/3696 ,  H04N9/045

摘要： An image sensor that output a signal for detecting a focus state of a photographing lens. The image sensor includes a microlens; a light-receiving pixel; a first focus state detection pixel pair for outputting a focus state detection signal, in which aperture areas of the first focus state detection pixel pair are small in comparison to the light-receiving pixel; and a second focus state detection pixel pair for outputting a focus state detection signal, in which aperture areas of the second focus state detection pixel pair are small in comparison to the light-receiving pixel, wherein the second focus state detection pixel pair is arranged at a position that is shifted by a predetermined amount relative to each aperture position, with respect to the microlens of the first focus state detection pixel pair.

摘要翻译： 输出用于检测拍摄镜头的聚焦状态的信号的图像传感器。 图像传感器包括微透镜; 光接收像素; 第一焦点状态检测像素对，用于输出聚焦状态检测信号，其中第一焦点状态检测像素对的开口面积与光接收像素相比较小; 以及第二焦点状态检测像素对，用于输出焦点状态检测信号，其中第二聚焦状态检测像素对的开口面积与光接收像素相比较小，其中第二聚焦状态检测像素对布置在 相对于第一聚焦状态检测像素对的微透镜相对于每个孔径位置偏移预定量的位置。

公开(公告)号：US08842212B2

公开(公告)日：2014-09-23

申请号：US13262496

申请日：2010-04-28

申请人： Akihiko Nagano

发明人： Akihiko Nagano

IPC分类号： H04N5/232 ,  G03B13/00 ,  G03B13/36 ,  H04N5/369 ,  G02B7/34 ,  G03B17/00 ,  G03B7/099 ,  G02B7/28 ,  H04N101/00

CPC分类号： G03B13/36 ,  G02B7/34 ,  H04N5/23212 ,  H04N5/3696 ,  H04N2101/00

摘要： An optical device comprises an image sensor having plural pixels and a detection unit configured to detect a focus state. The pixels include first focus state detection pixel pairs that respectively receive a pair of light fluxes having transmitted different pupil areas of the photographing lens, and second focus state detection pixel pairs that respectively receive a pair of light fluxes having transmitted pupil areas shifted by a predetermined amount from the pupil areas where the pair of light fluxes received by the first focus state detection pixel pairs have transmitted. The detection unit detects the focus state based on signal pairs obtained by adding the signals output from the first and second focus state detection pixel pairs, respectively, if a subject to be photographed is darker than a predetermined brightness, otherwise the detection unit detects the focus state based on signal pairs output from the first and second focus state detection pixel pairs, respectively.

摘要翻译： 光学装置包括具有多个像素的图像传感器和被配置为检测聚焦状态的检测单元。 像素包括分别接收具有拍摄镜头的不同瞳孔区域的一对光束的第一焦点状态检测像素对，以及分别接收具有偏移预定的发射光瞳区域的一对光束的第二聚焦状态检测像素对 来自由第一聚焦状态检测像素对接收的一对光束的光瞳区域的数量已经发送。 如果被拍摄对象比预定亮度暗，则检测单元基于通过将从第一和第二聚焦状态检测像素对输出的信号分别相加而获得的信号对来检测聚焦状态，否则检测单元检测焦点 基于分别从第一和第二聚焦状态检测像素对输出的信号对的状态。

公开(公告)号：US08754976B2

公开(公告)日：2014-06-17

申请号：US12999735

申请日：2009-07-08

申请人： Makoto Oikawa ,  Akihiko Nagano ,  Yasuo Suda

发明人： Makoto Oikawa ,  Akihiko Nagano ,  Yasuo Suda

IPC分类号： H04N5/232

CPC分类号： G03B13/36 ,  G02B7/08 ,  H04N5/23212 ,  H04N5/3696 ,  H04N5/37457

摘要： In an image sensor having a plurality of pixels which photoelectrically convert a subject image, a plurality of pairs of focus detection pixels including first focus detection pixels (SHA) and second focus detection pixels (SHB) are arranged while being distributed. The layouts of the first focus detection pixel (SHA) and the second focus detection pixel (SHB) are switched in pairs of focus detection pixels adjacent in the focus detection direction. Focus detection is performed using image waveforms obtained from the first focus detection pixel (SHA) and the second focus detection pixel (SHB) whose layouts are switched. This reduces focus detection errors generated when the pixels included in the pairs of focus detection pixels receive light fluxes from different portions of the subject.

摘要翻译： 在具有多个像素的图像传感器中，其对被摄体图像进行光电转换，包括第一焦点检测像素（SHA）和第二焦点检测像素（SHB）的多个焦点检测像素对被布置。 第一焦点检测像素（SHA）和第二焦点检测像素（SHB）的布局以焦点检测方向相邻的成对的焦点检测像素切换。 使用从布置被切换的第一焦点检测像素（SHA）和第二焦点检测像素（SHB）获得的图像波形执行焦点检测。 这减少了包括在对焦点检测像素对中的像素从对象的不同部分接收光通量时产生的焦点检测误差。