Patents by Inventor Tadashi Jogetsu

Tadashi Jogetsu 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: 9172883
    Abstract: A camera 10 has an imaging optical system, an imaging device 21a, and a finder device 15. The finder device 15 includes a variable magnification lens 64 which can be inserted into and removed from an optical path, and a shutter 62 which can switch between a closed state in which it interrupts light coming from a finder window 16 and an open state in which it allows passage of light coming from the finder window 16. The camera 10 is equipped with a driver 54 for controlling insertion and removal of the variable magnification lens 64 in accordance with the focal length of the imaging optical system, a driver 53 for controlling the state of the shutter 62, and a CPU 82. The CPU 82 controls the shutter 62 so that it is kept in the closed state while the variable magnification lens 64 is being moved.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 27, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Masayuki Koyanagi, Tadashi Jogetsu
  • Patent number: 9167158
    Abstract: According to the preset invention, an optical viewfinder state in which an optical image of a photographic subject can be observed at an eyepiece part of a finder and an electronic viewfinder state in which a captured image of the photographic subject can be observed at the eyepiece part of the finder are switched when a first operation is carried out with a finger by an operation device, and a magnification (optical magnification) of a first finder optical system of the finder is changed when a second operation is carried out with a finger by the operation device in the optical viewfinder state. Thus, a user can perform photographing while freely observing the photographic subject by an operation of switching the finder (first operation) and an operation of changing the optical magnification of the finder (second operation) while looking through the finder.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: October 20, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Jogetsu, Takeshi Okubo
  • Patent number: 9148577
    Abstract: The information about an interchangeable lens is acquired, and the size of an image capture range, which is the range corresponding to a capture image in an optical image, is calculated based on the information about the interchangeable lens. When the image capture range is smaller than or equal to a range to be shown by the angular field of the optical image, a first image showing the image capture range in the optical image is displayed on a display device, and when the image capture range is larger than the range to be shown by the angular field of the optical image, a second image different from the first image showing the image capture range in the optical image is displayed on the display device such that the second image is superimposed on at least either of the four corner vicinities and four side vicinities of the optical image.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Jogetsu, Takeshi Okubo
  • Patent number: 8964097
    Abstract: An image capturing apparatus includes: a photographing optical system; an image capturing element; and a viewfinder device, in which the viewfinder device includes at least one variable magnification lens that may be inserted on and removed from an optical path of the viewfinder device, and a drive mechanism configured to drive the variable magnification lens, in which the image capturing apparatus further includes: a variable magnification lens control unit configured to supply a drive signal to the drive mechanism so as to control the insertion and removal of the variable magnification lens on and from the optical path, and perform a high-speed control to move the variable magnification lens through a maximum moving distance for a first time, and a low-speed control to move the variable magnification lens through the maximum moving distance for a second time that is longer than the first time.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 24, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Shogo Fumino, Tadashi Jogetsu, Kouhei Awazu
  • Publication number: 20150022706
    Abstract: According to the preset invention, an optical viewfinder state in which an optical image of a photographic subject can be observed at an eyepiece part of a finder and an electronic viewfinder state in which a captured image of the photographic subject can be observed at the eyepiece part of the finder are switched when a first operation is carried out with a finger by an operation device, and a magnification (optical magnification) of a first finder optical system of the finder is changed when a second operation is carried out with a finger by the operation device in the optical viewfinder state. Thus, a user can perform photographing while freely observing the photographic subject by an operation of switching the finder (first operation) and an operation of changing the optical magnification of the finder (second operation) while looking through the finder.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 22, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Tadashi JOGETSU, Takeshi OKUBO
  • Publication number: 20150022694
    Abstract: The information about an interchangeable lens is acquired, and the size of an image capture range, which is the range corresponding to a capture image in an optical image, is calculated based on the information about the interchangeable lens. When the image capture range is smaller than or equal to a range to be shown by the angular field of the optical image, a first image showing the image capture range in the optical image is displayed on a display device, and when the image capture range is larger than the range to be shown by the angular field of the optical image, a second image different from the first image showing the image capture range in the optical image is displayed on the display device such that the second image is superimposed on at least either of the four corner vicinities and four side vicinities of the optical image.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 22, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Tadashi JOGETSU, Takeshi OKUBO
  • Patent number: 8872957
    Abstract: There are provided: a half mirror provided in a finder device and transmitting an incident light image from a subject side and projecting the incident light image onto a photographer side finder view window side; a display panel provided in a position facing the half mirror in the finder device and displaying a taken image of the subject taken by an imaging device with given brightness so that the displayed taken image (EVF image) is reflected by the half mirror so as to be projected onto the photographer side finder view window side; and a display control portion changing brightness of the display image (EVF image) displayed on the display panel so that the brightness of the display image (EVF image) increases gradually to given brightness or the brightness of the display image (EVF image) further increases gradually from the given brightness.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 28, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Tadashi Jogetsu
  • Publication number: 20140211063
    Abstract: An image capturing apparatus includes: a photographing optical system; an image capturing element; and a viewfinder device, in which the viewfinder device includes at least one variable magnification lens that may be inserted on and removed from an optical path of the viewfinder device, and a drive mechanism configured to drive the variable magnification lens, in which the image capturing apparatus further includes: a variable magnification lens control unit configured to supply a drive signal to the drive mechanism so as to control the insertion and removal of the variable magnification lens on and from the optical path, and perform a high-speed control to move the variable magnification lens through a maximum moving distance for a first time, and a low-speed control to move the variable magnification lens through the maximum moving distance for a second time that is longer than the first time.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 31, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Shogo FUMINO, Tadashi JOGETSU, Kouhei AWAZU
  • Publication number: 20140211068
    Abstract: A camera 10 has an imaging optical system, an imaging device 21a, and a finder device 15. The finder device 15 includes a variable magnification lens 64 which can be inserted into and removed from an optical path, and a shutter 62 which can switch between a closed state in which it interrupts light coming from a finder window 16 and an open state in which it allows passage of light coming from the finder window 16. The camera 10 is equipped with a driver 54 for controlling insertion and removal of the variable magnification lens 64 in accordance with the focal length of the imaging optical system, a driver 53 for controlling the state of the shutter 62, and a CPU 82. The CPU 82 controls the shutter 62 so that it is kept in the closed state while the variable magnification lens 64 is being moved.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 31, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Masayuki KOYANAGI, Tadashi JOGETSU
  • Publication number: 20130194479
    Abstract: There are provided: a half mirror provided in a finder device and transmitting an incident light image from a subject side and projecting the incident light image onto a photographer side finder view window side; a display panel provided in a position facing the half mirror in the finder device and displaying a taken image of the subject taken by an imaging device with given brightness so that the displayed taken image (EVF image) is reflected by the half mirror so as to be projected onto the photographer side finder view window side; and a display control portion changing brightness of the display image (EVF image) displayed on the display panel so that the brightness of the display image (EVF image) increases gradually to given brightness or the brightness of the display image (EVF image) further increases gradually from the given brightness.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Applicant: FUJIFILM CORPORATION
    Inventor: Tadashi JOGETSU
  • Patent number: 7973849
    Abstract: An aspect of the present invention provides an image taking apparatus, comprising: a solid-state image sensor; and a taking lens including a lens barrel that houses a lens disposed in front of the solid-state image sensor, wherein a shielding member that blocks an electromagnetic wave radiated from the front surface of the solid-state image sensor is provided on an outer circumference of the lens barrel, and a metallic member electrically floating in the lens barrel is grounded.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 5, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Oishi, Hajime Inoue, Toshiharu Izumi, Tadashi Jogetsu
  • Publication number: 20080094488
    Abstract: An aspect of the present invention provides an image taking apparatus, comprising: a solid-state image sensor; and a taking lens including a lens barrel that houses a lens disposed in front of the solid-state image sensor, wherein a shielding member that blocks an electromagnetic wave radiated from the front surface of the solid-state image sensor is provided on an outer circumference of the lens barrel, and a metallic member electrically floating in the lens barrel is grounded.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 24, 2008
    Applicant: FUJIFILM CORPORATION
    Inventors: Hiroyuki OISHI, Hajime INOUE, Toshiharu IZUMI, Tadashi JOGETSU