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: 11235706
    Abstract: A display system includes: a display that emits light corresponding to image information; a half mirror that receives the light emitted, reflects, as reflected light, a first component of the light received, and transmits a second component different from the first component; and a first reflecting mirror having a concave surface that receives and reflects the reflected light toward the half mirror. The half mirror includes a first retardation film, a first support substrate, and a reflective polarizing film stacked in this order from a side on which the light emitted is received. The first retardation film changes a phase of the light received. The first support substrate is light-transmissive. The reflective polarizing film reflects a first polarized component and transmits a second polarized component different from the first polarized component.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Kenji Nagatomi, Hirofumi Hoshida, Michihiro Yamagata, Keiichi Matsuzaki, Shoji So
  • Publication number: 20220004013
    Abstract: A display system includes: a display element that includes a display surface through which light showing an image is emitted; a concave mirror that reflects the light emitted through the display surface of the display element; and an optical element that includes a wave plate and a transmissive polarizing plate that is a polarizing element, the optical element facing the concave mirror. The concave mirror and the optical element are each provided separately from the display element. The optical element (i) transmits reflected light resulting from the light emitted through the display surface of the display element being reflected by the concave mirror, and (ii) reflects light from outside off a surface of the optical element, the surface facing the concave mirror, the light from the outside entering the optical element from a side through which the reflected light exits, and being reflected by the concave mirror.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kenji NAGATOMI, Norihiro IMAMURA
  • Publication number: 20210354626
    Abstract: A display apparatus includes a first mirror and a half mirror between a display device and a concave mirror. The first mirror reflects emission light emitted from an elongate display surface of the display device, toward the half mirror. The half mirror reflects the light reflected by the first mirror, toward the concave mirror. The concave mirror reflects the light reflected by the half mirror, toward the half mirror. In a top view of the display apparatus, a line passing through a center of the display surface in a longitudinal direction and parallel to the longitudinal direction and a tangent line passing through a center of a reflection surface of the concave mirror in a longitudinal direction and parallel to the longitudinal direction intersect at a predetermined angle.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 18, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Shigeru FURUMIYA
  • Patent number: 11146715
    Abstract: A camera system includes an image sensor, a wavelength filter, and an imaging optical system. The image sensor has an image capturing plane. The imaging optical system is configured to have light coming from a subject passed through the wavelength filter and imaged on the image capturing plane. The wavelength filter has a perpendicularly incident region and an obliquely incident region. On the perpendicularly incident region, a principal ray, which has passed through the imaging optical system, is incident perpendicularly. On the obliquely incident region, a principal ray, which has passed through the imaging optical system, is incident obliquely. The image sensor has sensitivity to a light ray having a predetermined wavelength. The light ray having the predetermined wavelength is transmitted at a higher transmittance through at least a part of the obliquely incident region than through the perpendicularly incident region.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Michihiro Yamagata, Norihiro Imamura, Keiichi Matsuzaki
  • Publication number: 20210311301
    Abstract: A display device includes: a display element including a display surface on which image is displayed; a first mirror and a second mirror that reflects emission light emitted from the display surface of the display element; and a polarization element. The polarization element is configured to reflect and transmit the emission light from display surface. The emission light from display surface is reflected off polarization element twice and transmitted through polarization element once by a time the emission light is reflected off first mirror and second mirror and exits from display device.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 7, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Keiichi MATSUZAKI, Kenji NAGATOMI
  • Patent number: 11110861
    Abstract: A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 7, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Michihiro Yamagata, Kenji Nagatomi
  • Publication number: 20210261058
    Abstract: A display system includes: a display device in a mobile body; a concave mirror for displaying, in a first mode, a virtual image of a display image shown by image light emitted by the display device; and a plane mirror for reflecting, in a second mode, a rear-view image shown by light that has entered the mobile body. In a top view of the mobile body, the display device and the concave mirror are disposed such that a straight line connecting centers of the display device and the concave mirror has a predetermined angle relative to a front-and-rear direction of the mobile body. A normal direction at a center of a concave mirror surface of the concave mirror when the first mode is functioning and a normal direction normal to a plane mirror surface of the plane mirror when the second mode is functioning are not parallel.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 26, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kenji NAGATOMI, Norihiro IMAMURA, Michihiro YAMAGATA
  • Publication number: 20210235043
    Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Norihiro IMAMURA, Tsuguhiro KORENAGA, Kunio NOBORI, Takeo AZUMA, Kazufumi MIZUSAWA
  • Publication number: 20210197725
    Abstract: A tangent line, described next, is, in top view, parallel to a straight line extending in a width direction of the display surface in a range in which the attitude can be changed. The tangent line is present on a plane orthogonal to the up-down direction of the automobile, and contacts a center of the final reflective surface. In top view, of an angle formed by a straight line connecting a center of the final reflective surface with a center of the display surface and the tangent line of the final reflective surface, a supplementary angle which is supplementary to an angle that is on a rear side of the automobile and that is on a side where the observer is present is an acute angle of less than 90 degrees.
    Type: Application
    Filed: December 17, 2020
    Publication date: July 1, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Kenji NAGATOMI, Michihiro YAMAGATA, Shoji SO, Keiichi MATSUZAKI
  • Patent number: 11006081
    Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 11, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro Imamura, Tsuguhiro Korenaga, Kunio Nobori, Takeo Azuma, Kazufumi Mizusawa
  • Publication number: 20210129755
    Abstract: A display system includes: a display that emits light corresponding to image information; a half mirror that receives the light emitted, reflects, as reflected light, a first component of the light received, and transmits a second component different from the first component; and a first reflecting mirror having a concave surface that receives and reflects the reflected light toward the half mirror. The half mirror includes a first retardation film, a first support substrate, and a reflective polarizing film stacked in this order from a side on which the light emitted is received. The first retardation film changes a phase of the light received. The first support substrate is light-transmissive. The reflective polarizing film reflects a first polarized component and transmits a second polarized component different from the first polarized component.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Kenji NAGATOMI, Hirofumi HOSHIDA, Michihiro YAMAGATA, Keiichi MATSUZAKI, Shoji SO
  • Publication number: 20210101531
    Abstract: A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.
    Type: Application
    Filed: September 24, 2020
    Publication date: April 8, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Michihiro YAMAGATA, Kenji NAGATOMI
  • Patent number: 10953799
    Abstract: A display system includes a display unit, a housing, and a reflecting optical system. The display unit displays an image based on a captured image. The housing includes a housing room that houses the display unit and the reflecting optical system. The reflecting optical system reflects the image displayed on the display unit, thereby outputting the reflected image through an opening of the housing to the outside of the housing.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: March 23, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Shoji Soh
  • Patent number: 10940800
    Abstract: A display system according to the present disclosure includes at least a first reflective surface and a second reflective surface on an optical path leading from a display device to a last reflective surface. The first reflective surface reflects a light beam emerging from the display device toward the second reflective surface. The second reflective surface reflects, toward the last reflective surface, the light beam reflected from the first reflective surface. The light beam emerging from the display device travels along a first optical path leading from a display screen of the display device to the first reflective surface and then travels along a second optical path leading from the second reflective surface to the last reflective surface. The first optical path and the second optical path intersect with each other before the light beam impinges on the last reflective surface.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 9, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Michihiro Yamagata
  • Patent number: 10882454
    Abstract: A display system includes a display surface and a display mirror. The display surface is configured to display image P1 based on a captured image. The display mirror is configured to reflect, as reflection image P2, only a partial area in the image displayed on the display surface. The display system is configured so that a position of reflection image P2 changes as a point of view of a subject viewing the display mirror moves.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: January 5, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Shoji Soh, Katsuyuki Morita
  • Publication number: 20200377021
    Abstract: A display system includes: a display device; a reflection optical system; a housing; and a shield member. The reflection optical system includes at least a last reflective member on which light, emerging from a display screen of the display device, is incident either directly or indirectly. The shield member is held by the housing to assume either a shielding state or an unshielding state. The shielding state is a state where the shield member at least partially cuts off light incident on, or reflected from, the last reflective member. The unshielding state is a state where the shielding state is canceled. The shield member in the shielding state reflects, toward the viewer's eyes, external light impinging on the housing. The housing has a holding structure to hold the shield member, no matter whether the shield member assumes the shielding state or the unshielding state.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 3, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shoji SO, Kenji NAGATOMI, Norihiro IMAMURA, Michihiro YAMAGATA
  • Patent number: 10836314
    Abstract: Disclosed herein is a display system including an image producing unit and an optical system part. The image producing unit produces an image on a display screen by letting a light beam, which eventually forms a virtual image based on the image produced, emerge from the display screen. The optical system part forms a left-eye image and a right-eye image on a user's left and right eyes, respectively, and thereby projects the virtual image toward a user's left and right eyes by reflecting and/or refracting the light beam emerging from the display screen. The optical system part has an image distortion generation factor to make an image distortion of the left-eye image different from an image distortion of the right-eye image.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: November 17, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Michihiro Yamagata, Keiichi Matsuzaki
  • Publication number: 20200351473
    Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Inventors: Norihiro Imamura, Tsuguhiro KORENAGA, Kunio NOBORI, Takeo AZUMA, Kazufumi MIZUSAWA
  • Publication number: 20200307459
    Abstract: A display system includes a display surface and a display mirror. The display surface is configured to display image P1 based on a captured image. The display mirror is configured to reflect, as reflection image P2, only a partial area in the image displayed on the display surface. The display system is configured so that a position of reflection image P2 changes as a point of view of a subject viewing the display mirror moves.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro IMAMURA, Shoji SOH, Katsuyuki MORITA
  • Publication number: 20200314303
    Abstract: A camera system includes an image sensor, a wavelength filter, and an imaging optical system. The image sensor has an image capturing plane. The imaging optical system is configured to have light coming from a subject passed through the wavelength filter and imaged on the image capturing plane. The wavelength filter has a perpendicularly incident region and an obliquely incident region. On the perpendicularly incident region, a principal ray, which has passed through the imaging optical system, is incident perpendicularly. On the obliquely incident region, a principal ray, which has passed through the imaging optical system, is incident obliquely. The image sensor has sensitivity to a light ray having a predetermined wavelength. The light ray having the predetermined wavelength is transmitted at a higher transmittance through at least a part of the obliquely incident region than through the perpendicularly incident region.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Michihiro YAMAGATA, Norihiro IMAMURA, Keiichi MATSUZAKI