Patents by Inventor Shusuke Ono

Shusuke Ono 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: 7586683
    Abstract: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 8, 2009
    Assignee: Panasonic Corporation
    Inventors: Katsu Yamada, Shusuke Ono
  • Publication number: 20080106790
    Abstract: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.
    Type: Application
    Filed: December 20, 2007
    Publication date: May 8, 2008
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono
  • Patent number: 7336419
    Abstract: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: February 26, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono
  • Patent number: 7046350
    Abstract: A device for calculating diffraction efficiencies of a diffraction lens divided into a plurality of regions, each region comprising at least one grating ring, comprises a first memory for storing information about diffraction efficiencies of the regions; a second memory for storing information about weights corresponding to the regions; and a first processor for retrieving information from the first and the second memory, and calculating diffraction efficiencies of the entire diffraction lens using the formula E j = ? m = 1 M ? W m ? ? mj ( 1 ) wherein: j: integer indicating the order of diffraction light Ej: diffraction efficiency for j-th order diffraction light of the diffraction lens M: positive integer (M>1) indicating the number of regions for which the diffraction efficiency is calculated m: index of the region for which the diffraction efficiency is calculated ?mj: diffraction efficiency for the j-th order diffraction light of the m-th region (stored in the first m
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: May 16, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michihiro Yamagata, Kazutake Boku, Yasuhiro Tanaka, Tomohiko Sasano, Shusuke Ono
  • Publication number: 20050270646
    Abstract: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.
    Type: Application
    Filed: February 22, 2005
    Publication date: December 8, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono
  • Publication number: 20050195482
    Abstract: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.
    Type: Application
    Filed: February 22, 2005
    Publication date: September 8, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono
  • Patent number: 6542312
    Abstract: A zoom lens is described that includes: a first lens group having positive refracting power and fixed with respect to an image plane; a second lens group having negative refracting power and varying power, wherein the power is varied by moving along an optical axis; a third lens group having positive refracting power and fixed with respect to the image plane; and a fourth lens group having: positive refracting power and moving along an optical axis so as to keep the image plane varied by movement of the second lens group and an object at a predetermined position from a reference surface. The first, second, third, and fourth lens groups are disposed from the object side to the image plane side in this order. The second lens group is composed of two negative lenses and one positive lens. The third lens group is composed of two positive lenses and one negative lens. The fourth lens group is composed of a positive lens. The second to fourth lens groups include at least one aspherical surface, respectively.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Okayama, Shusuke Ono
  • Publication number: 20020196428
    Abstract: A device for calculating diffraction efficiencies of a diffraction lens divided into a plurality of regions, each region comprising at least one grating ring, comprises a first memory for storing information about diffraction efficiencies of the regions; a second memory for storing information about weights corresponding to the regions; and a first processor for retrieving information from the first and the second memory, and calculating diffraction efficiencies of the entire diffraction lens using the formula 1 E j = ∑ m = 1 M ⁢ W m ⁢ η mj ( 1 )
    Type: Application
    Filed: October 24, 2001
    Publication date: December 26, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michihiro Yamagata, Kazutake Boku, Yasuhiro Tanaka, Tomohiko Sasano, Shusuke Ono
  • Patent number: 6441968
    Abstract: A zoom lens comprising, in the order of an increasing distance from an object; a fixed first lens group (1) having a positive refractive power; a second lens group (2) containing an aspherical surface, having a negative refractive power and being in charge of a variable power action by being moved; a fixed third lens group (3) containing an aspherical surface and having a positive refractive power; and a fourth lens group (4) containing an aspherical surface, having a positive refractive power and moving while following up a moving object point; wherein the surface on the image plane side of a lens positioned closest to the image plane in the third lens group (3) has a concave plane having a strong refractive power with respect to the image plane and a relation, 2.0<L/CL1<2.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: August 27, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Okayama, Shusuke Ono, Masaki Hirokoh
  • Patent number: 6349000
    Abstract: A device for calculating diffraction efficiencies of a diffraction lens divided into a plurality of regions, each region comprising at least one grating ring, comprises a first memory for storing information about diffraction efficiencies of the regions; a second memory for storing information about weights corresponding to the regions; and a first processor for retrieving information from the first and the second memory, and calculating diffraction efficiencies of the entire diffraction lens using the formula E j = ∑ m = 1 M ⁢ W m ⁢ η mj ( 1 )
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: February 19, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michihiro Yamagata, Kazutake Boku, Yasuhiro Tanaka, Tomohiko Sasano, Shusuke Ono
  • Patent number: 6055105
    Abstract: An optical system that can be used in an optical imaging system and displays good imaging performance with corrected chromatic aberration without increasing the number of lenses is provided by employing a lens surface with a diffractive effect. The optical system uses a lens with a concave incident surface and positive refractive power. A grating element surface 40 with positive refractive power is formed on at least one surface of the lens. The surface on which the grating element is formed is an aspherical surface with a radius of curvature that becomes bigger with increasing distance from the optical axis.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: April 25, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazutake Boku, Shusuke Ono
  • Patent number: 5978152
    Abstract: A very compact zoom lens system is provided which has a zoom ratio of 10.times., a bright f-number of 1.4 and a wide angle of view of 59 degree or greater although having a fewer number of lens. The zoom lens system comprises from the object side to the image side: a fixed first lens unit having a negative power lens, a positive power lens and a positive power meniscus lens; a second lens unit having an aspherical surface, having a negative power lens, a negative power biconcave lens and a positive power lens and performing zooming by moving; a fixed third lens unit having an aspherical surface and having a positive power lens, a positive power lens and a negative power lens; and a fourth lens unit having an aspherical surface, having positive power and moves according to zooming and a movement of an object point. The image side surface of the most image side lens of the third lens unit is a concave surface having strong power to the image side.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 2, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Okayama, Shusuke Ono, Hisayuki Ii, Tsuyoshi Kakimoto
  • Patent number: 5940221
    Abstract: A compact zoom lens comprising a small number of lenses, providing an aperture of about F1.4 and a zoom ration of about 14, with a full angle of view at the wide angle end of 64.degree. or wider. The zoom lens of the present invention comprises, aligned respectively from the object side, a fixed first lens group, comprising a lens with a negative refracting power, a lens with a positive refracting power, and a meniscus lens with a positive refracting power; a movable second lens group to provide zooming effect, comprising a lens with a negative refracting power, a biconcave lens with a negative refracting power, and a lens with a positive refracting power, with at least one surface of these lenses aspheric; a fixed third lens group with a positive refracting power, with at least one surface of these lenses aspheric; a fourth lens group, movable for compensating the position of the focal plane, with a positive refracting power, with at least one surface of the lenses aspheric.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: August 17, 1999
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventors: Hiroaki Okayama, Hisayuki II, Shusuke Ono
  • Patent number: 5814806
    Abstract: A plurality of types of ink having different wavelength characteristics are used for multiple printing of code information. When two or more types of ink are to be printed in an overlapping manner, in a region 8 in which one type of ink 4 and another type of ink 5 are printed in the overlapping manner, the ink 4 and the ink 5 are printed so as not to completely overlap each other by using a checkered pattern 9. As a result, the multiple printing can be performed without strict constraints on the wavelength characteristics of the ink.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: September 29, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Tanaka, Hiroaki Okayama, Shusuke Ono, Kazutake Boku, Michihiro Yamagata, Katsu Yamada, Yoshiharu Yamamoto, Motonobu Yoshikawa
  • Patent number: 5583698
    Abstract: The aspherical zoom lens of the invention includes sequentially from an object side: a first lens group which has a positive refractive power and is fixed relative to an image plane; a second lens group which has a negative refractive power and is movable on an optical axis of the aspherical zoom lens so as to have a magnification changing function; a third lens group which has a positive refractive power and is fixed relative to the image plane so as to have a light converging function; and a fourth lens group which has a positive refractive power and is movable on the optical axis so that the image plane displaceable in response to travel of the second lens group and movement of the object is fixed at a position spaced by a predetermined distance from a reference face. An air space is provided between the third and the fourth lens groups.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: December 10, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono, Tsuyoshi Kakimoto
  • Patent number: 5555132
    Abstract: A wide-conversion lens for attachment to a master lens system consists of a bi-negative first lens in a object side and a bi-positive second lens in a master lens side, and in the second lens its radii of curvature of both surfaces are selected the same.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: September 10, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Shusuke Ono
  • Patent number: 5552937
    Abstract: A first lens group having a negative refracting power and a second lens group having a positive refracting power are arranged in order from the photographing object side. Zooming is performed by changing the aerial interval between the first and second lens groups, and both the first and second lens groups have one or more aspheric surfaces. The first lens group includes two negative lenses and a positive lens which are arranged in order from the object side, and the second lens group includes a positive lens, a cemented lens having a positive lens and a negative lens, and a positive lens which are arranged in order from the object side.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 3, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shusuke Ono, Hiroaki Okayama, Yasuo Nakajima
  • Patent number: 5504621
    Abstract: A two-dimensional optical low-pass filter includes an optical phase grating having a plurality of unitary grating periods on only one side of a grating plane. Each of the unitary grating periods includes at least two phase retardation structures spaced from each other, thereby providing phase retardation across the grating plane. The two phase retardation structures invariably have at least one non-continuous phase retardation configuration substantially in all directions on the grating plane.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: April 2, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Okayama, Shusuke Ono
  • Patent number: 5434709
    Abstract: In a wavelength-selective phase-grating type optical low-pass filter including at least a pair of adjacent first and second transparent layers, there is provided at least one adhesive layer through which a pair of adjacent first and second transparent layers stacked on each other in a phase grating form for generating a phase difference distribution on the boundary surface between the pair of adjacent first and second transparent layers. The optical low-pass filter satisfies the following conditions under a condition of 470 nm<.lambda.<580 nm: (a) No (.lambda.)=Ni (.lambda.), (b) .nu.d1<.nu.d2 or .nu.d1>.nu.d2, and (c) 0.9< Np(.lambda.) / No(.lambda.)< 1.1, where .lambda. is a wavelength of light passing through the optical low-pass filter, No (.lambda.) and Ni (.lambda.) are refractive indexes of the first and second transparent layers, respectively, at the wavelength .lambda., .nu.d1 and .nu.d2 are Abbe's numbers of the first and second transparent layers, respectively, No(.lambda.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: July 18, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsu Yamada, Hiroaki Okayama, Shusuke Ono
  • Patent number: 5396367
    Abstract: A zoom lens assembly includes, in succession order from the object side, a first fixed lens group of a positive refractive power including a negative lens, a positive lens and a positive meniscus lens; a second movable lens group of a negative refractive power including a negative meniscus lens, a positive lens and a positive lens for effecting a variation of image magnification by moving along an optical axis of the zoom lens assembly; a third fixed lens group of a positive refractive power having at least one aspherical face and including a positive lens and a negative lens; and a fourth movable lens group of a positive refractive power including having at least one aspherical surface and also including negative and positive lenses cemented together.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: March 7, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shusuke Ono, Hisayuki II, Hiroaki Okayama, Yasuo Nakajima