Patents by Inventor Genta Yagyu

Genta Yagyu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9800772
    Abstract: There is provided a focus adjustment device including an image sensor including a plurality of phase difference detection pixels that each perform pupil division of a photographing lens, a correction value acquisition unit for acquiring a correction value for a focus position in a spatial frequency of a subject which is obtained by the image sensor, and a focus adjustment unit for adjusting a focus position of the photographing lens based on the correction value acquired by the correction value acquisition unit.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 24, 2017
    Assignee: SONY CORPORTAION
    Inventors: Yoshitaka Miyatani, Norihiko Akamatsu, Genta Yagyu
  • Patent number: 9560244
    Abstract: An image pickup device includes a first image sensor for photoelectrically converting subject light and generating an image, a second image sensor for photoelectrically converting the subject light and generating an image for a live view, a first optical member for transmitting the subject light and allowing the subject light to enter the first image sensor, and at the same time, reflecting the subject light, and a second optical member for leading the subject light reflected by the first optical member to the second image sensor and allowing the subject light to enter the second image sensor.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 31, 2017
    Assignee: SONY CORPORATION
    Inventors: Wataru Abe, Genta Yagyu
  • Publication number: 20150146051
    Abstract: An image pickup device includes a first image sensor for photoelectrically converting subject light and generating an image, a second image sensor for photoelectrically converting the subject light and generating an image for a live view, a first optical member for transmitting the subject light and allowing the subject light to enter the first image sensor, and at the same time, reflecting the subject light, and a second optical member for leading the subject light reflected by the first optical member to the second image sensor and allowing the subject light to enter the second image sensor.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 28, 2015
    Inventors: Wataru Abe, Genta Yagyu
  • Patent number: 8908068
    Abstract: An image pickup device includes a first pixel and a second pixel. The first pixel includes a first light-shielding portion and a first light-receiving portion in order from an object. The first pixel outputs a first image signal, and the first light-shielding portion includes a first opening. The second pixel includes a second light-shielding portion and a second light-receiving portion in order from the object. The second pixel outputs a second image signal, and the second light-shielding portion includes a second opening that has area smaller than area of the first opening.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: December 9, 2014
    Assignee: Sony Corporation
    Inventor: Genta Yagyu
  • Publication number: 20140036134
    Abstract: There is provided a focus adjustment device including an image sensor including a plurality of phase difference detection pixels that each perform pupil division of a photographing lens, a correction value acquisition unit for acquiring a correction value for a focus position in a spatial frequency of a subject which is obtained by the image sensor, and a focus adjustment unit for adjusting a focus position of the photographing lens based on the correction value acquired by the correction value acquisition unit.
    Type: Application
    Filed: June 6, 2013
    Publication date: February 6, 2014
    Inventors: Yoshitaka MIYATANI, Norihiko AKAMATSU, Genta YAGYU
  • Patent number: 8319882
    Abstract: A phase-difference detecting image pickup element performs focus detection even if the position of an exit pupil with respect to the image pickup element changes. A pixel pair receives an object light beam transmitted through a pair of portion areas whose areas become the same in an exit pupil at a particular distance from the image pickup element. The pixel pair includes light-intercepting portions that define the pair of portion areas. A different pixel pair whose light-intercepting portions are different so that the areas of the pair of portion areas in the exit pupil the particular distance from the image pickup element are the same. By this, even if the position of the exit pupil is changed by, for example, a lens replacement, focus detection can be performed by a phase-difference detection method by selecting a pixel pair in accordance with the position of the exit pupil.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 27, 2012
    Assignee: Sony Corporation
    Inventors: Shinichi Fujii, Yasutoshi Katsuda, Genta Yagyu
  • Publication number: 20120262606
    Abstract: An image pickup device includes a first pixel and a second pixel. The first pixel includes a first light-shielding portion and a first light-receiving portion in order from an object. The first pixel outputs a first image signal, and the first light-shielding portion includes a first opening. The second pixel includes a second light-shielding portion and a second light-receiving portion in order from the object. The second pixel outputs a second image signal, and the second light-shielding portion includes a second opening that has area smaller than area of the first opening.
    Type: Application
    Filed: March 16, 2012
    Publication date: October 18, 2012
    Applicant: Sony Corporation
    Inventor: Genta Yagyu
  • Patent number: 8098322
    Abstract: An image pickup device includes a group of photoelectric conversion cells that output distance-measurement signals for phase difference detection. Each photoelectric conversion cell includes a photodetector and a pupil restricting unit. The photodetector generates the distance-measurement signal. The pupil restricting unit restricts a size of a pupil area, from which arrival light has exited, to a predetermined size in an exit pupil of a taking optical system, object light exiting from the exit pupil of the taking optical system, the arrival light arriving at the photodetector. The predetermined size is less than half a size of an entire area of the exit pupil.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: January 17, 2012
    Assignee: Sony Corporation
    Inventors: Yasutoshi Katsuda, Shinichi Fujii, Genta Yagyu
  • Patent number: 8013896
    Abstract: An imaging apparatus includes a first imaging sensor, a second imaging sensor, a display unit, an electronic viewfinder unit, a position changing unit and a sensor-shift shaking correction unit. The first imaging sensor acquires an image relating to a subject at the time of main photography. The second imaging sensor acquires an image relating to the subject before the time of main photography. The sensor-shift shaking correction unit performs shaking correction at the time of the main photography, by changing a position of the first sensor with the position changing unit. The electronic viewfinder unit performs consecutive image display on a display screen of the display unit, based on images sequentially acquired by the second imaging sensor before the main photography, and includes an electronic shaking correction unit that performs shaking correction of the consecutive image display, by changing the display position of the images on the display screen.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: September 6, 2011
    Assignee: Sony Corporation
    Inventors: Hiroshi Tachibana, Nobuharu Murashima, Ichiro Tsujimura, Genta Yagyu, Kazuhiko Kojima
  • Patent number: 7999217
    Abstract: An image-capturing element includes a pair of photoelectric conversion cells that pupil-divide object light in a first direction and in a second direction and that output a ranging signal. The photoelectric conversion cells include a photoreceiving element configured to receive the object light and generate a ranging signal, a first light-shielding layer having a first light-transmitting area, and a second light-shielding layer having a second light-transmitting area.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: August 16, 2011
    Assignee: Sony Corporation
    Inventors: Yasutoshi Katsuda, Genta Yagyu, Shinichi Fujii
  • Patent number: 7956901
    Abstract: A live-view optical system A is, in an image capture apparatus capable of obtaining an image of an object in a moving picture mode by reflecting an optical image formed on a focusing plate D from a part of a reflective surface F of a penta-dach mirror B and by re-forming the optical image on a live-view imaging device H, positioned between an opening G of the penta-dach mirror and the live-view imaging device, and re-forms light reflected from the part of the reflective surface on the live-view imaging device, wherein a position of an entrance pupil K satisfies the following conditional expression (1). 0.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: June 7, 2011
    Assignee: Sony Corporation
    Inventor: Genta Yagyu
  • Publication number: 20110063484
    Abstract: A technology of a phase-difference detecting image pickup element that can precisely perform focus detection even if the position of an exit pupil with respect to the image pickup element changes is provided. The image pickup element of an image pickup device includes an AF pixel pair 11g that receive an object light beam transmitted through a pair of portion areas Qc and Qd whose areas become the same in an exit pupil at a position of distance Hm from the image pickup element. The AF pixel pair 11g includes light-intercepting portions 131 and 132 where respective light-transmitting portions that define the pair of portion areas Qc and Qd are provided. In addition, the image pickup element also includes a different AF pixel pair whose disposition of light-intercepting portions 131 and 132 are made different so that the areas of the pair of portion areas in the exit pupil at a position of a distance Hm from the image pickup element are the same.
    Type: Application
    Filed: February 26, 2009
    Publication date: March 17, 2011
    Applicant: Sony Corporation
    Inventors: Shinichi Fujii, Yasutoshi Katsuda, Genta Yagyu
  • Publication number: 20100171867
    Abstract: A live-view optical system A is, in an image capture apparatus capable of obtaining an image of an object in a moving picture mode by reflecting an optical image formed on a focusing plate D from a part of a reflective surface F of a penta-dach mirror B and by re-forming the optical image on a live-view imaging device H, positioned between an opening G of the penta-dach mirror and the live-view imaging device, and re-forms light reflected from the part of the reflective surface on the live-view imaging device, wherein a position of an entrance pupil K satisfies the following conditional expression (1). 0.
    Type: Application
    Filed: March 3, 2008
    Publication date: July 8, 2010
    Applicant: Sony Corporation
    Inventor: Genta Yagyu
  • Patent number: 7734170
    Abstract: There is provided an imaging apparatus having a viewfinder optical system; a first image sensor; a photometric sensor; and optical path changing means. The viewfinder optical system has a first reflective surface that reflects a monitoring luminous flux, and the first reflective surface changes a reflection angle of the monitoring luminous flux. A change in a reflection angle of the first reflective surface causes a course of the monitoring luminous flux to be switched between a first optical path and a second optical path. In a case of second optical path, a travel direction is changed with the optical path changing means placed on the second optical path, causing a photometric processing to be performed using the first image sensor, while in a case of the first optical path, the photometric processing is performed using the photometric sensor.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: June 8, 2010
    Assignee: Sony Corporation
    Inventors: Genta Yagyu, Ichiro Tsujimura
  • Patent number: 7692869
    Abstract: An image-taking lens unit includes: a variable magnification optical system for forming an optical image of an object with a variable magnification; and an image sensor for converting the optical image into an electrical signal. The image-taking lens unit changes the shape thereof between a photographing state and a non-photographing state. The variable magnification optical system has a plurality of lens groups for performing magnification variation by changing intervals therebetween and a reflective surface for bending an optical axis. At least one of the plurality of lens groups is a movable group that moves during magnification variation. The reflective surface is kept in fixed position during magnification variation or focusing. In transition from the photographing state to the non-photographing state, at least the reflective surface moves so that at least part of the movable group is stored into a space left after the movement of the reflective surface.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: April 6, 2010
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Shinji Yamaguchi, Tetsuo Kohno, Genta Yagyu
  • Publication number: 20090225217
    Abstract: An image pickup device includes a group of photoelectric conversion cells that output distance-measurement signals for phase difference detection. Each photoelectric conversion cell includes a photodetector and a pupil restricting unit. The photodetector generates the distance-measurement signal. The pupil restricting unit restricts a size of a pupil area, from which arrival light has exited, to a predetermined size in an exit pupil of a taking optical system, object light exiting from the exit pupil of the taking optical system, the arrival light arriving at the photodetector. The predetermined size is less than half a size of an entire area of the exit pupil.
    Type: Application
    Filed: February 9, 2009
    Publication date: September 10, 2009
    Applicant: Sony Corporation
    Inventors: Yasutoshi Katsuda, Shinichi Fujii, Genta Yagyu
  • Publication number: 20090153705
    Abstract: An image-capturing element includes a group of first pixels configured to receive object light and generate an image signal representing an object image; and a group of second pixels configured to receive the object light and generate a ranging signal for detecting a phase difference. The second pixels each include an optical filter on a light-receiving side thereof. The optical filter allows visible light in a wavelength range wider than a wavelength range of visible light that is allowed by a green primary-color filter to be transmitted therethrough within the object light to be transmitted therethrough.
    Type: Application
    Filed: November 14, 2008
    Publication date: June 18, 2009
    Applicant: Sony Corporation
    Inventors: Yasutoshi KATSUDA, Shinichi Fujii, Genta Yagyu
  • Publication number: 20090146046
    Abstract: An image-capturing element includes a pair of photoelectric conversion cells that pupil-divide object light in a first direction and in a second direction and that output a ranging signal. The photoelectric conversion cells include a photoreceiving element configured to receive the object light and generate a ranging signal, a first light-shielding layer having a first light-transmitting area, and a second light-shielding layer having a second light-transmitting area.
    Type: Application
    Filed: November 17, 2008
    Publication date: June 11, 2009
    Applicant: Sony Corporation
    Inventors: Yasutoshi KATSUDA, Genta Yagyu, Shinichi Fujii
  • Patent number: 7522346
    Abstract: An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom lens system to an electric signal. The zoom lens system has from an object side: a first lens unit being overall negative and including a reflecting surface that bends a luminous flux substantially 90 degrees; and a second lens unit disposed with a variable air distance from the first lens unit, and having a negative optical power.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 21, 2009
    Assignee: Minolta Co., Ltd.
    Inventors: Hitoshi Hagimori, Yasushi Yamamoto, Genta Yagyu, Kazuhiko Ishimaru
  • Publication number: 20080266405
    Abstract: An imaging apparatus includes: a first imaging sensor configured to acquire an image relating to a subject at the time of main photography; a second imaging sensor configured to acquire an image relating to a subject before the time of main photography; a display unit having a display screen capable of image display; an electronic viewfinder unit configured to perform consecutive image display on the display screen, based on images sequentially acquired by the second imaging sensor before the main photography; a position changing unit configured to change the position of the first imaging sensor; and a sensor-shift shaking correction unit configured to perform shaking correction at the time of the main photography, by changing the position of the first sensor with the position changing unit; the electronic viewfinder unit further including an electronic shaking correction unit configured to perform shaking correction of the consecutive image display, by changing the display position of the images on the displ
    Type: Application
    Filed: March 17, 2008
    Publication date: October 30, 2008
    Applicant: Sony Corporation
    Inventors: Hiroshi TACHIBANA, Nobuharu Murashima, Ichiro Tsujimura, Genta Yagyu, Kazuhiko Kojima