Patents by Inventor Kunihiro Fukino

Kunihiro Fukino 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).

  • Publication number: 20190049688
    Abstract: A lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel includes: at least three guide bars provided so as to extend along the optical axis direction; a driving unit that respectively drives the at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by the at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of the at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Applicant: NIKON CORPORATION
    Inventor: Kunihiro FUKINO
  • Patent number: 10126518
    Abstract: A lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel includes: at least three guide bars provided so as to extend along the optical axis direction; a driving unit that respectively drives the at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by the at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of the at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: November 13, 2018
    Assignee: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Publication number: 20170351055
    Abstract: A lens barrel includes: a first cylindrical member that extends in a prescribed axial direction; a second cylindrical member that slides in the prescribed axial direction along an inner circumferential surface of the first cylindrical member; an axis member that slides in the prescribed axial direction along an inner circumferential surface of the second cylindrical member; and a first holding member that is fixed to the axis member, is guided in the prescribed axial direction by the slide of the axis member against the second cylindrical member, and holds a first optical member.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: NIKON CORPORATION
    Inventors: Kunihiro FUKINO, Masaaki KUSANO
  • Patent number: 9766425
    Abstract: A lens barrel includes: a first cylindrical member that extends in a prescribed axial direction; a second cylindrical member that slides in the prescribed axial direction along an inner circumferential surface of the first cylindrical member; an axis member that slides in the prescribed axial direction along an inner circumferential surface of the second cylindrical member; and a first holding member that is fixed to the axis member, is guided in the prescribed axial direction by the slide of the axis member against the second cylindrical member, and holds a first optical member.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: September 19, 2017
    Assignee: NIKON CORPORATION
    Inventors: Kunihiro Fukino, Masaaki Kusano
  • Publication number: 20170038553
    Abstract: A lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel includes: at least three guide bars provided so as to extend along the optical axis direction; a driving unit that respectively drives the at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by the at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of the at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Applicant: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Patent number: 9488797
    Abstract: A lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel includes: at least three guide bars provided so as to extend along the optical axis direction; a driving unit that respectively drives the at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by the at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of the at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: November 8, 2016
    Assignee: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Patent number: 9297981
    Abstract: A lens barrel having an image forming optical system including a first optical system and a second optical system which is moveable independently from the first optical system, a first driving portion which drives the first optical system during a magnification changing operation of the image forming optical system, and a second driving portion which drives the second optical system during the magnification changing operation, along with driving the second optical system during a focus adjustment of the image forming system.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: March 29, 2016
    Assignee: NIKON CORPORATION
    Inventors: Kunihiro Fukino, Masaaki Kusano
  • Publication number: 20150301302
    Abstract: A lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel includes: at least three guide bars provided so as to extend along the optical axis direction; a driving unit that respectively drives the at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by the at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of the at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Applicant: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Patent number: 9103952
    Abstract: Provided is a lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel is characterized by comprising: at least three guide bars provided so as to extend along the optical axis direction; drive means that respectively drive said at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by said at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of said at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: August 11, 2015
    Assignee: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Patent number: 9025257
    Abstract: Provided is a lens barrel including: a guide shaft in an axial form supported by a reference member; a holding member holding an optical system, and movable in an axial direction of the guide shaft with respect to the reference member; and an interlocking member including an engaging section engaging with the holding member, the interlocking member moving in the axial direction while rotating around an optical axis of the optical system, and moving along the guide shaft without rotating the holding member. The lens barrel may include a driving cylinder including a cam groove engaging with the interlocking member, where when rotated around the optical axis, the driving cylinder drives the interlocking member by means of the cam groove, to cause the interlocking member to move linearly in the direction of the guide shaft.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 5, 2015
    Assignee: Nikon Corporation
    Inventor: Kunihiro Fukino
  • Publication number: 20150022900
    Abstract: A lens barrel having an image forming optical system including a first optical system and a second optical system which is moveable independently from the first optical system, a first driving portion which drives the first optical system during a magnification changing operation of the image forming optical system, and a second driving portion which drives the second optical system during the magnification changing operation, along with driving the second optical system during a focus adjustment of the image forming system.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 22, 2015
    Applicant: Nikon Corporation
    Inventors: Kunihiro FUKINO, Masaaki KUSANO
  • Publication number: 20140362453
    Abstract: A lens barrel includes: a first cylindrical member that extends in a prescribed axial direction; a second cylindrical member that slides in the prescribed axial direction along an inner circumferential surface of the first cylindrical member; an axis member that slides in the prescribed axial direction along an inner circumferential surface of the second cylindrical member; and a first holding member that is fixed to the axis member, is guided in the prescribed axial direction by the slide of the axis member against the second cylindrical member, and holds a first optical member.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Kunihiro FUKINO, Masaaki KUSANO
  • Patent number: 8891176
    Abstract: A lens barrel including a subject-side lens guided by guide bars. The lens barrel has a first guide shaft disposed within a cylindrical fixed cylinder and oriented axially along the fixed cylinder; a second guide shaft disposed outside the fixed cylinder and oriented axially; a first holding member that holds a first lens and moves along the first guide shaft; and a second holding member that holds a second lens positioned on a subject side of the first lens and moves along the second guide shaft.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: November 18, 2014
    Assignee: Nikon Corporation
    Inventor: Kunihiro Fukino
  • Publication number: 20140168793
    Abstract: Provided is a lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel is characterized by comprising: at least three guide bars provided so as to extend along the optical axis direction; drive means that respectively drive said at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by said at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of said at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 19, 2014
    Applicant: NIKON CORPORATION
    Inventor: Kunihiro Fukino
  • Patent number: 8705188
    Abstract: A lens barrel and imaging device with a low likelihood of optical characteristics being degraded by an impact from a fall or the like may be provided. A lens barrel including: a retention member that retains an optical system; and a first guide shaft that guides the retention member to be movable along an optical axis of the optical system, wherein the retention member includes, a first engaging portion that engages with the first guide shaft, and an abutting portion disposed at the opposite side of the optical axis from the side thereof at which the first engaging portion is disposed, at a position that is offset in the optical axis direction from the engaging portion, the abutting portion being abuttable against an abutted portion when a force in the optical axis direction is applied at least to the retention member.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 22, 2014
    Assignee: Nikon Corporation
    Inventor: Kunihiro Fukino
  • Publication number: 20130308204
    Abstract: A lens barrel having an image forming optical system including a first optical system and a second optical system which is moveable independently from the first optical system, a first driving portion which drives the first optical system during a magnification changing operation of the image forming optical system, and a second driving portion which drives the second optical system during the magnification changing operation, along with driving the second optical system during a focus adjustment of the image forming system.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 21, 2013
    Inventors: Kunihiro FUKINO, Masaaki KUSANO
  • Patent number: 8564895
    Abstract: A lens barrel comprising: a first retention member that includes a first engaging portion, which engages with a guide shaft, and that retains a first optical system and a second optical system, which is different from the first optical system, to be integrally movable along the guide shaft; and a second retention member that includes a second engaging portion, which engages with the guide shaft, and that retains a third optical system, which is disposed between the first optical system and the second optical system, to be movable independently of the first and second optical systems.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: October 22, 2013
    Assignee: Nikon Corporation
    Inventors: Kunihiro Fukino, Kazuyasu Oone, Masaaki Tanabe
  • Publication number: 20130271861
    Abstract: A lens barrel including a subject-side lens guided by guide bars. The lens barrel has a first guide shaft disposed within a cylindrical fixed cylinder and oriented axially along the fixed cylinder; a second guide shaft disposed outside the fixed cylinder and oriented axially; a first holding member that holds a first lens and moves along the first guide shaft; and a second holding member that holds a second lens positioned on a subject side of the first lens and moves along the second guide shaft.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 17, 2013
    Inventor: Kunihiro FUKINO
  • Patent number: 8482871
    Abstract: Provided is a lens barrel including a subject-side lens guided by guide bars, comprising a first guide shaft that is disposed within a cylindrical fixed cylinder and oriented along an axial direction of the fixed cylinder; a second guide shaft that is disposed outside the fixed cylinder and oriented along the axial direction, and arranged such that at least a portion thereof overlaps with the first guide shaft in a longitudinal direction of the first guide shaft; a first holding member that holds a first lens, includes a first engaging member that engages with the first guide shaft, and moves along the first guide shaft; and a second holding member that holds a second lens positioned on a subject side of the first lens, includes a second engaging member that engages with the second guide shaft, and moves along the second guide shaft, wherein at least a portion of movement range of the first engaging member on the first guide shaft overlaps in the axial direction with at least a portion of movement range of th
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 9, 2013
    Assignee: Nikon Corporation
    Inventor: Kunihiro Fukino
  • Patent number: 8325431
    Abstract: Provided is a lens barrel comprising a fixed cylinder; an optical system having a first optical component that moves relative to the fixed cylinder; a first holding frame that holds the first optical component; a guide axle that is connected to the first holding frame and that extends parallel to an optical axis of the optical system; a linear drive unit operable to move the guide axle in the direction of the optical axis and to fix the position of the guide axle; and a holding cylinder that holds the linear drive unit, the holding cylinder being fixed to the fixed cylinder with respect to the direction of the optical axis when the linear drive unit moves the guide axle and moving relative to the fixed cylinder in the direction of the optical axis when the linear drive unit holds the guide axle.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: December 4, 2012
    Assignee: Nikon Corporation
    Inventor: Kunihiro Fukino