Patents by Inventor Tetsu Wada

Tetsu Wada 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: 10764488
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of appropriately supporting a photographer at the time of focusing. An image sensor movement driver that moves an image sensor along an optical axis is provided, and a subject is tracked by moving the image sensor within a movable range. A focusing operation detector that detects a focusing operation for the subject and a movable range switch that switches the movable range of the image sensor are provided. In a case where the focusing operation is detected by the focusing operation detector, the movable range switch widens the movable range of the image sensor.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 1, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20200228714
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imager which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical splitter as defined herein; a subject light detector as defined herein; and a processor as defined herein, and the processor calculates distances of the subjects formed on the light receiving surface of the subject light detector from the imaging optical system based on output signals of the subject light detector, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221034
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of appropriately supporting a photographer at the time of focusing. An image sensor movement driver that moves an image sensor along an optical axis is provided, and a subject is tracked by moving the image sensor within a movable range. A focusing operation detector that detects a focusing operation for the subject and a movable range switch that switches the movable range of the image sensor are provided. In a case where the focusing operation is detected by the focusing operation detector, the movable range switch widens the movable range of the image sensor.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221016
    Abstract: Provided are an imaging device capable of accelerating AF and a focusing control method thereof. A focus lens drive unit (16) that drives a focus lens (12), and an image sensor movement drive unit (120) that moves an image sensor (110) along an optical axis (L) are included. A target position of the focus lens (12) for focusing on a subject is set, and the focus lens (12) is moved toward the target position. The image sensor (110) is moved before the focus lens (12) reaches the target position such that focusing is performed. A focusing state is maintained by moving the image sensor (110) so as to follow the focus lens (12) after the focusing is performed.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221017
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of adjusting a focus with high accuracy by appropriately supporting the focus adjustment in a manual manner. An image sensor movement driver (220) that moves an image sensor (210) along an optical axis (L), and an image sensor movement controller (250a) that controls the movement of the image sensor (210) by controlling the image sensor movement driver (220) are provided. In a case where a subject is focused, the image sensor movement controller (250a) starts the tracking, and controls the movement of the image sensor (210) such that a focusing state is maintained based on a defocus amount detected by the phase difference AF processing unit (132).
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Patent number: 10652467
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imaging element which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical element as defined herein; a subject light detection unit as defined herein; a movement detection unit as defined herein; and a drive controller as defined herein, and the movement detection unit calculates distances of the subjects formed on the light receiving surface of the subject light detection unit from the imaging optical system based on output signals of the subject light detection unit, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 12, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10645296
    Abstract: A first imaging unit images subject light after angle-of-view mark light is removed by a dichroic mirror, and outputs a first imaging signal. A second imaging unit images the angle-of-view mark light of each of other television cameras. A calculating unit calculates a position of a virtual angle-of-view mark showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. An image compositing unit generates a composite image by compositing a virtual angle-of-view mark image and a virtual angle-of-view frame image corresponding to the position of the virtual angle-of-view mark with a video image based on the first imaging signal. The composite image is displayed on a monitor.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10574907
    Abstract: A first imaging unit images angle-of-view mark light of each of other television cameras. An image compositing unit generates a virtual angle-of-view mark image and a virtual angle-of-view frame image as a virtual angle-of-view image showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. The image compositing unit generates a composite image by compositing the virtual angle-of-view mark image and the virtual angle-of-view frame image with a video image. The composite image is displayed on a lens monitor of a lens device that is detachable from a camera body.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: February 25, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20190191093
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imaging element which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical element as defined herein; a subject light detection unit as defined herein; a movement detection unit as defined herein; and a drive controller as defined herein, and the movement detection unit calculates distances of the subjects formed on the light receiving surface of the subject light detection unit from the imaging optical system based on output signals of the subject light detection unit, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20190187403
    Abstract: Provided are a lens device capable of preventing a focus shift of an imaging optical system due to heat without reducing a degree of freedom of design, an imaging device comprising the same, and a focus shift correction method of a lens device.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20190025541
    Abstract: A lens device includes: a movable lens capable of being moved in a direction of an optical axis; a target position information acquiring unit that acquires information of a target position of the movable lens; a target position information transmitting unit that transmits the information of the target position to a movable lens operation device including a movable operating member for moving the movable lens and an operating member driving unit that drives the operating member; and a movable lens driving unit that performs first driving for moving the movable lens based on a position of the operating member detected by an operating member position detection unit that detects the position of the operating member, and the operating member driving unit drives the operating member based on the information of the target position.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 24, 2019
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20180324363
    Abstract: A first imaging unit images angle-of-view mark light of each of other television cameras. An image compositing unit generates a virtual angle-of-view mark image and a virtual angle-of-view frame image as a virtual angle-of-view image showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. The image compositing unit generates a composite image by compositing the virtual angle-of-view mark image and the virtual angle-of-view frame image with a video image. The composite image is displayed on a lens monitor of a lens device that is detachable from a camera body.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20180316872
    Abstract: A first imaging unit images subject light after angle-of-view mark light is removed by a dichroic mirror, and outputs a first imaging signal. A second imaging unit images the angle-of-view mark light of each of other television cameras. A calculating unit calculates a position of a virtual angle-of-view mark showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. An image compositing unit generates a composite image by compositing a virtual angle-of-view mark image and a virtual angle-of-view frame image corresponding to the position of the virtual angle-of-view mark with a video image based on the first imaging signal. The composite image is displayed on a monitor.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 1, 2018
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20180180840
    Abstract: The present invention provides a focus device, an imaging system, and a method of outputting a focus-lens drive signal each capable of securing the amount of infrared rays incident on a focus sensor. Visible rays and infrared rays included in the incidence rays are transmitted through a first region of a diaphragm and the infrared rays are transmitted through a second region of the diaphragm. The visible rays are transmitted through a dichroic mirror, and are incident on an image sensor. The infrared rays are reflected by a reflection surface of the dichroic mirror, and are incident on a focus sensor. A focus-lens drive signal is output from the focus sensor, and is input to a focus-lens drive unit. A focus lens is driven by the focus-lens drive unit. The amount of rays incident on the focus sensor is not decreased, and hence precise focusing can be performed.
    Type: Application
    Filed: February 22, 2018
    Publication date: June 28, 2018
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Patent number: 9986164
    Abstract: A control section 11 moves an imaging lens 1 based on a detection signal from an angular velocity detection section 6 so as to correct image blurring which occurs in captured image data obtained through imaging performed by an imaging element 3. The control section 11 calculates a first motion vector between first captured image data, which is obtained through imaging performed by the imaging element 3, and second captured image data which is obtained subsequent to the first captured image data and in which image blurring is corrected. The control section 11 performs an offset correction for reducing an offset signal included in the detection signal of the angular velocity detection section 6, based on the first motion vector.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 29, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 9891446
    Abstract: An imaging apparatus includes: a detection unit that detects accelerations in directions of three orthogonal axes; a generation unit that, in a case in which a difference between the magnitude of a resultant vector of the accelerations in the directions of the three orthogonal axes and the magnitude of the acceleration of gravity is equal to or less than a predetermined threshold value, generates a reference vector using the resultant vector; and a correction unit that corrects an image blur caused by translational shakes in directions of two orthogonal axes perpendicular to at least an optical axis of an imaging optical system, using the reference vector, on the basis of the accelerations in the directions of the three orthogonal axes.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: February 13, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 9883108
    Abstract: An imaging apparatus includes: a driving unit that moves a focus lens; a focusing unit that determines a focus state and outputs a focusing signal indicating a focus position of the focus lens; a control unit that controls the driving unit based on the focusing signal; an acceleration detection unit that detects acceleration in directions of three orthogonal axes; a distance calculation unit that calculates an acceleration component in an optical axis direction based on the acceleration in the directions of the three orthogonal axes detected by the acceleration detection unit and calculates an object distance corresponding to the focus position indicated by the focusing signal based on the acceleration component in the optical axis direction; and a shake correction unit that corrects an image blur caused by a translational shake in directions of two orthogonal axes perpendicular to at least an optical axis as defined herein.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 30, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20170285365
    Abstract: An imaging apparatus includes: a detection unit that detects accelerations in directions of three orthogonal axes; a generation unit that, in a case in which a difference between the magnitude of a resultant vector of the accelerations in the directions of the three orthogonal axes and the magnitude of the acceleration of gravity is equal to or less than a predetermined threshold value, generates a reference vector using the resultant vector; and a correction unit that corrects an image blur caused by translational shakes in directions of two orthogonal axes perpendicular to at least an optical axis of an imaging optical system, using the reference vector, on the basis of the accelerations in the directions of the three orthogonal axes.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Patent number: 9774841
    Abstract: An image for a left eye and an image for a right eye are respectively captured. A corresponding point corresponding to each of a plurality of feature points detected from the image for a left eye is searched for using the image for a right eye. The number of corresponding points found by the search is counted, and it is determined whether to be equal to or more than a predetermined ratio with respect to the number of pixels of the image for a right eye. When the number of corresponding points is determined to be less than the predetermined ratio, the image for a right eye is recaptured, and the corresponding point search process and the determination of whether the number of corresponding points is equal to or more than the predetermined ratio are re-executed using an image new for a right eye obtained by recapture.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 26, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Koichi Yahagi, Koichi Tanaka, Hisashi Endo, Tetsu Wada
  • Publication number: 20170244901
    Abstract: An imaging apparatus includes: a driving unit that moves a focus lens; a focusing unit that determines a focus state and outputs a focusing signal indicating a focus position of the focus lens; a control unit that controls the driving unit based on the focusing signal; an acceleration detection unit that detects acceleration in directions of three orthogonal axes; a distance calculation unit that calculates an acceleration component in an optical axis direction based on the acceleration in the directions of the three orthogonal axes detected by the acceleration detection unit and calculates an object distance corresponding to the focus position indicated by the focusing signal based on the acceleration component in the optical axis direction; and a shake correction unit that corrects an image blur caused by a translational shake in directions of two orthogonal axes perpendicular to at least an optical axis as defined herein.
    Type: Application
    Filed: May 11, 2017
    Publication date: August 24, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA