Patents by Inventor Norihiro Imamura

Norihiro Imamura 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: 8520125
    Abstract: An image capture device according to the present invention includes: a first optical system 10 that has a longitudinal chromatic aberration to cause first, second and third colors to form images at mutually different positions on an optical axis; a first image capturing region Na for generating an image that has a component in at least one of the first, second and third colors by using light that has been transmitted through the first optical system 10; a second optical system 20 that has a different longitudinal chromatic aberration from that of the first optical system 10; a second image capturing region Nb for generating an image that has a component in the same color as the at least one color by using light that has been transmitted through the second optical system 20; and an arithmetic processing section C for generating an output image by using one of the two images that has been generated in the first or second image capturing region Na or Nb so as to have the component in the at least one color apiec
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: August 27, 2013
    Assignee: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Publication number: 20130215299
    Abstract: An imaging apparatus according to the present invention includes: a lens optical system L having a first optical region D1 and a second optical region D2 having a different optical power from that of the first optical region D1; an imaging device N having a plurality of pixels P1, P2; and an array optical device K for causing light passing through the first optical region D1 to enter the pixel P1 and causing light passing through the second optical region D2 to enter the pixel P2.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 22, 2013
    Applicant: PANASONIC CORPORATION
    Inventor: Norihiro Imamura
  • Publication number: 20130141634
    Abstract: An imaging device includes: a lens optical system including a first region and a second region having different optical properties; an imaging element including first pixels and second pixels; an arrayed optical element which is provided between the lens optical system and the imaging element, allows light passing through the first region to enter the first pixels, and allows light passing through the second region to enter the second pixels; a signal processing unit configured to generate object information using pixel values obtained from the first pixels and the second pixels; and a diffractive optical element provided between the arrayed optical element and the lens optical system and including a diffraction grating symmetrical about an optical axis of the lens optical system.
    Type: Application
    Filed: May 18, 2012
    Publication date: June 6, 2013
    Inventors: Tsuguhiro Korenaga, Norihiro Imamura
  • Publication number: 20130120564
    Abstract: Provided is an imaging device including: a lens optical system L including at least an optical plane area D1 and an optical plane area D2, the optical plane area D2 having an optical property that causes a focusing property of the optical plane area D2 to differ from a focusing property of the optical plane area D1 due to a light beam that has passed through the optical plane area D1; an imaging element N including at least a plurality of pixels P1 and a plurality of pixels P2 which allow light that has passed through the lens optical system L to enter; and an array-shaped optical element K that is arranged between the lens optical system L and the imaging element N and is configured to cause light that has passed through the optical plane area D1 to enter the plurality of pixels P1 and to cause light that has passed through the optical plane area D2 to enter the plurality of pixels P2.
    Type: Application
    Filed: April 19, 2011
    Publication date: May 16, 2013
    Applicant: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Patent number: 8434874
    Abstract: A pattern projection light source is disclosed in which a light source (2a); a plurality of mask regions (5) in each of which a light-transmitting portion that transmits light from the light source therethrough is formed in a predetermined pattern; and a plurality of lenses (7) that each form an image of the predetermined pattern of the light-transmitting portion at a predetermined distance are arranged in this order. Since the pattern projection light source includes a plurality of projection optical systems each including a mask region and a lens, a compact and thin pattern projection light source can be realized. Moreover, provision of a plurality of lenses makes it possible to increase the imaging range of a pattern image. Furthermore, an image of the pattern of the light-transmitting portion can be formed clearly on the object.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: May 7, 2013
    Assignee: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Publication number: 20130070146
    Abstract: An imaging apparatus according to the present invention includes a lens optical system L, an imaging device N at least having a plurality of first and second pixels P1 and P2, an array optical device K, and a signal processing section C for generating an image. The lens optical system L has an optical region D1 and an optical region D2; the array optical device K causes light passing through the optical regions D1 and D2 to respective enter the plurality of first and second pixels P1 and P2; and a proportion of an amount of light exiting the optical region D2 relative to an amount of light entering the optical region D2 is smaller than a proportion of an amount of light exiting the optical region D1 relative to an amount of light entering the optical region D1.
    Type: Application
    Filed: December 28, 2011
    Publication date: March 21, 2013
    Applicant: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Patent number: 8400505
    Abstract: A calibration device and method calibrates a distance measuring device which provides captured images with significant lens aberration. The calibration device and method estimate a camera parameter representing a characteristic of each imaging system of a distance measuring device, and perform the following: capture, using the distance measuring device, an image of a reference chart which (i) represents a geometric pattern in which elements are arranged and (ii) is positioned to have a predetermined positional relationship with the distance measuring device; modify a luminance distribution affected by aberration of the lens in the captured image of the reference chart; calculate, as a feature point position, a gravity center position of each element in the captured image whose luminance distribution is modified; and estimate the camera parameter using the feature point position calculated in the calculating and an approximate actual gravity center position in the reference chart.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Ichiro Oyama, Norihiro Imamura
  • Publication number: 20120268643
    Abstract: An imaging apparatus of the present invention includes: a lens optical system including a lens and a stop; an imaging device including at least a plurality of first pixels and a plurality of second pixels on which light having passed through the lens optical system is incident; and an arrayed optical device arranged between the lens optical system and the imaging device, wherein: the lens optical system includes, in a plane vertical to an optical axis, a first optical area that transmits therethrough light of a first wavelength band and a second optical area that transmits therethrough light of a second wavelength band different from the first wavelength band; and the arrayed optical device makes light having passed through the first optical area incident on the plurality of first pixels and light having passed through the second optical area incident on the plurality of second pixels.
    Type: Application
    Filed: October 31, 2011
    Publication date: October 25, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Norihiro Imamura
  • Patent number: 8284381
    Abstract: A distance measuring apparatus includes: a reference object; a plurality of optical systems; imaging sections for converting images of an object for distance measurement and the reference object formed in the respective imaging regions into picture data; and a calculation section. The calculation section generates a plurality of picture data of the reference object by light of a first wavelength band and a plurality of picture data of the object for distance measurement by light of a second wavelength band, the second wavelength band being longer in wavelength than is the first wavelength band. From the plurality of picture data, parallax amounts of the reference object and the object for distance measurement are calculated. A distance to the object for distance measurement is calculated based on a corrected parallax amount of the object for distance measurement.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: October 9, 2012
    Assignee: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Patent number: 8109666
    Abstract: A light guide member of the present invention is made of a light transmitting material. The light guide includes a light emitting surface 13, which extends in direction x and includes a lens surface 31 for converging light in direction y. The light guide also includes a light incident surface 11 provided at one of the ends spaced from each other in the direction x. The light emitting surface 13 includes a transitional region 13a adjacent to the light incident surface 11, where the transitional region includes the lens surface 31 and a round pillar surface 32. In the transitional region 13a, the lens surface 31 becomes less dominant in area as proceeding in the direction x toward the light incident surface 11.
    Type: Grant
    Filed: December 25, 2006
    Date of Patent: February 7, 2012
    Assignee: Rohm Co., Ltd.
    Inventors: Hideki Sawada, Norihiro Imamura, Motoari Shoji
  • Publication number: 20120026360
    Abstract: An imaging device according to the present invention includes: image side non-telecentric imaging optics including a first lens 1, a second lens 2 which is entered by light having traveled through the first lens 1, and an imaging element 4 having an imaging plane 4i for detecting light having traveled through the second lens 2; a position changing section (a cam mechanism 6 and a motor 8) for, during an exposure time, respectively changing a first distance between the first lens 1 and the second lens 2 and a second distance between the second lens 2 and the imaging element 4; and a signal processing section 9 for generating an image by using an electrical signal which is output from the imaging element 4. The imaging element 4 converts light reaching the imaging plane 4i during the exposure time, during which the first distance and the second distance are changing, into an electrical signal.
    Type: Application
    Filed: February 8, 2011
    Publication date: February 2, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Norihiro Imamura
  • Patent number: 8102516
    Abstract: Provided is a test method for accurately testing all regions within a field of view and evaluating, by one-time capturing, accuracy of a distance measured by a compound-eye distance measuring apparatus having two baseline directions.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: January 24, 2012
    Assignee: Panasonic Corporation
    Inventor: Norihiro Imamura
  • Publication number: 20110286634
    Abstract: An image capture device according to the present invention includes: a first optical system 10 that has a longitudinal chromatic aberration to cause first, second and third colors to form images at mutually different positions on an optical axis; a first image capturing region Na for generating an image that has a component in at least one of the first, second and third colors by using light that has been transmitted through the first optical system 10; a second optical system 20 that has a different longitudinal chromatic aberration from that of the first optical system 10; a second image capturing region Nb for generating an image that has a component in the same color as the at least one color by using light that has been transmitted through the second optical system 20; and an arithmetic processing section C for generating an output image by using one of the two images that has been generated in the first or second image capturing region Na or Nb so as to have the component in the at least one color apiec
    Type: Application
    Filed: October 22, 2010
    Publication date: November 24, 2011
    Applicant: PANASONIC CORPORATION
    Inventor: Norihiro Imamura
  • Publication number: 20110205357
    Abstract: A distance measuring apparatus of the present invention is a distance measuring apparatus for determining a distance to an object, comprising: a plurality of optical systems for forming images of the object; and an image capturing section (N) having a plurality of image capturing areas which are associated with the plurality of optical systems on a one-to-one basis, the image capturing section (N) being configured to convert images of the object formed in respective ones of the image capturing areas through the plurality of optical systems to electric signals, the distance to the object being determined based on a parallax between the images of the object formed through the plurality of optical systems, wherein each of the plurality of optical systems includes n lens surfaces (r1, r2), where n is an integer not less than 2, and a direction of a decentration between an ith lens surface (r1) and a jth lens surface (r2) (counting from the object side) is identical among at least one pair of the plurality of opti
    Type: Application
    Filed: March 3, 2010
    Publication date: August 25, 2011
    Inventor: Norihiro Imamura
  • Patent number: 7903298
    Abstract: An image reader A1 according to the present invention comprises a pair of light source devices 3, a light guide member 4, a first and a second reflectors 7A and 7B, a plurality of light receiving elements 5, and a case 1. The image reader A1 further includes a first fitting contrivance 71 for positioning the first reflector 7A relative to the case 1 by inserting the first reflector 7A into the case 1 in the insertion direction z, a second fitting contrivance 72 for positioning the light guide member 4 relative to the case 1 by inserting the light guide member 4 into the case 1 in the insertion direction z, and a third fitting contrivance 73 for positioning the second reflector 7B relative to the case 1 by inserting the second reflector 7B into the case 1 in the insertion direction z.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 8, 2011
    Assignee: ROHM Co., Ltd.
    Inventors: Hideki Sawada, Norihiro Imamura
  • Publication number: 20110037964
    Abstract: A distance measuring apparatus according to the present invention for measuring a distance to an object based on a parallax of images obtained with a plurality of optical systems includes: a reference object (12); a plurality of optical systems (14a, 14b); imaging sections (17a, 17b) for converting images of the object for distance measurement and the reference object formed in the respective imaging regions by the plurality of optical systems into electrical signals; and a calculation section. From the electrical signals, the calculation section generates a plurality of picture data of the reference object by light of a first wavelength band of the reference object in the plurality of imaging regions and a plurality of picture data of the object for distance measurement by light of a second wavelength band of the object for distance measurement in the plurality of imaging regions, the second wavelength band being longer in wavelength than is the first wavelength band.
    Type: Application
    Filed: February 3, 2009
    Publication date: February 17, 2011
    Inventor: Norihiro Imamura
  • Publication number: 20100289895
    Abstract: A distance measuring apparatus according to the present invention determines the distance to an object of range finding based on the amount of parallax between multiple images. The distance measuring apparatus includes: a number of simple lenses L1, L2 in substantially the same shape, on which light that has come from the object of range finding is incident; and an image capturing section N, which has a number of image capturing areas N1, N2 and which captures the images of the object of range finding that have been produced by the respective simple lenses L1, L2 on their associated image capturing areas N1, N2. The lens surfaces r1, r2 of each lens that are opposed to the object of range finding and the image capturing section, respectively, are only aspheric refracting surfaces.
    Type: Application
    Filed: November 16, 2009
    Publication date: November 18, 2010
    Inventor: Norihiro Imamura
  • Publication number: 20100201809
    Abstract: To provide highly accurate calibration method or the like for use with a distance measuring device which provides captured images with significant lens aberration.
    Type: Application
    Filed: May 19, 2009
    Publication date: August 12, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Ichiro Oyama, Norihiro Imamura
  • Publication number: 20100195166
    Abstract: An image reader A1 according to the present invention comprises a pair of light source devices 3, a light guide member 4, a first and a second reflectors 7A and 7B, a plurality of light receiving elements 5, and a case 1. The image reader A1 further includes a first fitting contrivance 71 for positioning the first reflector 7A relative to the case 1 by inserting the first reflector 7A into the case 1 in the insertion direction z, a second fitting contrivance 72 for positioning the light guide member 4 relative to the case 1 by inserting the light guide member 4 into the case 1 in the insertion direction z, and a third fitting contrivance 73 for positioning the second reflector 7B relative to the case 1 by inserting the second reflector 7B into the case 1 in the insertion direction z.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 5, 2010
    Applicant: ROHM CO., LTD.
    Inventors: Hideki Sawada, Norihiro Imamura
  • Publication number: 20100128249
    Abstract: Provided is a test method for accurately testing all regions within a field of view and evaluating, by one-time capturing, accuracy of a distance measured by a compound-eye distance measuring apparatus having two baseline directions.
    Type: Application
    Filed: February 24, 2009
    Publication date: May 27, 2010
    Inventor: Norihiro Imamura