Patents by Inventor Shingo Ohkawa

Shingo Ohkawa 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: 20220382138
    Abstract: An illumination device includes: a plurality of light source assemblies; and a plate-shaped optical unit on which light source light beams from the plurality of light source assemblies are incident from mutually different directions, and the plate-shaped optical unit is sectioned into a reflection surface and a transmission surface in accordance with an incident light intensity distribution of each of the light source light beams. Then, transmitted light having passed through the plate-shaped optical unit among the light source light beams and reflected light having been reflected by the plate-shaped optical unit among the light source light beams are emitted with directions aligned, and a boundary between the transmission surface and the reflection surface in the plate-shaped optical unit is formed at a position where incident light intensities of the light source light beams individually from the plurality of light source assemblies have substantially equal values to each other.
    Type: Application
    Filed: September 18, 2020
    Publication date: December 1, 2022
    Applicant: SONY GROUP CORPORATION
    Inventors: Shingo OHKAWA, Gen YONEZAWA
  • Patent number: 11474600
    Abstract: An eyeball detection unit of the present disclosure includes an irradiator that projects substantially parallel illumination light toward a cornea of an eyeball, a detector that detects light intensity of reflected light from the cornea, and a detection controller that identifies a centroid offset in an angular direction of the light intensity of the reflected light from the cornea with respect to a reference optical axis on the basis of a detected value by the detector, and thereafter calculates a positional offset of a cornea position with respect to the reference optical axis.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: October 18, 2022
    Assignee: SONY CORPORATION
    Inventors: Shingo Ohkawa, Ryo Ogawa, Susumu Seino
  • Patent number: 11243340
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source; a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source; a prism sheet disposed to face the first main surface; and a reflection sheet disposed to face the second main surface.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: February 8, 2022
    Assignee: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Publication number: 20220026708
    Abstract: An image display device of the present disclosure includes: a first optical unit configured to change a traveling direction of an optical path by refracting light from a display element; a second optical unit to which the light refracted by the first optical unit enters; and a control unit configured to set a timing to change the traveling direction of the optical path to a state that is different among a plurality of regions, which are determined by dividing a display region of the display element in a scanning direction by controlling a distance between the first optical unit and the second optical unit so as to correspond to each of the plurality of regions.
    Type: Application
    Filed: October 18, 2019
    Publication date: January 27, 2022
    Inventor: SHINGO OHKAWA
  • Publication number: 20210381661
    Abstract: A light-emitting device includes: a plurality of light sources configured to he disposed on a substrate; a light diffusion member configured to commonly cover the plurality of light sources; and. a plurality of wavelength conversion members configured to be disposed between the light sources and the light diffusion member in a thickness direction and disposed in regions corresponding to the plurality of light sources in a plane, respectively, and. configured to convert light with a first wavelength from the light sources into light with a second wavelength.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Applicant: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Publication number: 20210333461
    Abstract: There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Applicant: Saturn Licensing LLC
    Inventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
  • Publication number: 20210325961
    Abstract: An eyeball detection unit of the present disclosure includes an irradiator that projects substantially parallel illumination light toward a cornea of an eyeball, a detector that detects light intensity of reflected light from the cornea, and a detection controller that identifies a centroid offset in an angular direction of the light intensity of the reflected light from the cornea with respect to a reference optical axis on the basis of a detected value by the detector, and thereafter calculates a positional offset of a cornea position with respect to the reference optical axis.
    Type: Application
    Filed: May 24, 2019
    Publication date: October 21, 2021
    Inventors: SHINGO OHKAWA, RYO OGAWA, SUSUMU SEINO
  • Patent number: 11143871
    Abstract: An image display apparatus that includes a first light collecting-reflecting device (10, 11) which image light (L0) from an image forming apparatus enters, and a second light collecting-reflecting device (20, 21) which second light (L2), of the image light, having passed through the first light collecting-reflecting device enters. The first light collecting-reflecting device has transmission action and light collecting-reflecting action with respect to the image light. The first light collecting-reflecting device collects and reflects first light (L1), of the entering image light, toward a first conversion position in a viewer's eye (201). The second light collecting-reflecting device has at least the light collecting-reflecting action with respect to the image light. The second light collecting-reflecting device causes the second light to reenter the first light collecting-reflecting device and collects and reflects the second light toward a second conversion position.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 12, 2021
    Assignee: SONY CORPORATION
    Inventors: Shingo Ohkawa, Ryo Ogawa, Mariko Nishiyama, Atsushi Takahashi
  • Patent number: 11143365
    Abstract: A light-emitting device includes: a plurality of light sources configured to be disposed on a substrate; a light diffusion member configured to commonly cover the plurality of light sources; and a plurality of wavelength conversion members configured to be disposed between the light sources and the light diffusion member in a thickness direction and disposed in regions corresponding to the plurality of light sources in a plane, respectively, and configured to convert light with a first wavelength from the light sources into light with a second wavelength.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: October 12, 2021
    Assignee: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Patent number: 11086064
    Abstract: There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: August 10, 2021
    Assignee: Saturn Licensing LLC
    Inventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
  • Patent number: 11003212
    Abstract: A display device includes: a frame to be mounted on a head of an observer; and an image display device attached to the frame. The image display device includes: an image forming device; a light guide plate; a support substrate; a first deflection unit; a second deflection unit; and an optical member attached to the support substrate, in which light from the image forming device is deflected at the first deflection unit, propagated inside the light guide plate by total reflection, deflected at the second deflection unit, and incident on the optical member, and the optical member emits the incident light toward a pupil of an observer. The display device further includes a movement device that moves the support substrate with respect to the light guide plate in order to change a relative positional relation between the second deflection unit and the optical member.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: May 11, 2021
    Assignee: SONY CORPORATION
    Inventors: Shingo Ohkawa, Katsuyuki Akutsu
  • Publication number: 20210055468
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source; a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source; a prism sheet disposed to face the first main surface; and a reflection sheet disposed to face the second main surface.
    Type: Application
    Filed: September 18, 2020
    Publication date: February 25, 2021
    Applicant: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Publication number: 20200386996
    Abstract: An image display apparatus according to the present invention includes an image light generator (100) that emits image light, a first reflection element (11) that the image light from the image light generator (100) is to enter, the first reflection element (11) having a transmitting action and a reflecting action on the image light, a second reflection element (12) that reflects, toward the first reflection element (11), the image light that has entered via the first reflection element (11) and causes the image light to re-enter the first reflection element (11), the second reflection element (12) having a reflecting action on the image light, a light-condensing optical system (20) that converges, toward a position of a pupil of an observer, the image light that has re-entered the first reflection element (11), and a controller (40) that controls a placement angle of the first reflection element (11), the second reflection element (12), or both on the basis of the position of the pupil of the observer.
    Type: Application
    Filed: December 6, 2018
    Publication date: December 10, 2020
    Inventor: SHINGO OHKAWA
  • Patent number: 10809442
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source, a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source, a prism sheet disposed to face the first main surface, and a reflection sheet disposed to face the second main surface. The light-guiding plate includes a plurality of first slope sections and a plurality of second slope sections both provided on one of the first main surface and the second main surface. A proportion of area occupied by the second slope sections increases in a predetermined range from the second end surface, as a distance from the second end surface increases.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 20, 2020
    Assignee: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Publication number: 20200057186
    Abstract: There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Applicant: Saturn Licensing LLC
    Inventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
  • Publication number: 20200033603
    Abstract: An image display apparatus that includes a first light collecting-reflecting device (10, 11) which image light (L0) from an image forming apparatus enters, and a second light collecting-reflecting device (20, 21) which second light (L2), of the image light, having passed through the first light collecting-reflecting device enters. The first light collecting-reflecting device has transmission action and light collecting-reflecting action with respect to the image light. The first light collecting-reflecting device collects and reflects first light (L1), of the entering image light, toward a first conversion position in a viewer's eye (201). The second light collecting-reflecting device has at least the light collecting-reflecting action with respect to the image light. The second light collecting-reflecting device causes the second light to reenter the first light collecting-reflecting device and collects and reflects the second light toward a second conversion position.
    Type: Application
    Filed: February 26, 2018
    Publication date: January 30, 2020
    Inventors: SHINGO OHKAWA, RYO OGAWA, MARIKO NISHIYAMA, ATSUSHI TAKAHASHI
  • Patent number: 10488572
    Abstract: There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 26, 2019
    Assignee: Saturn Licensing LLC
    Inventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
  • Publication number: 20190339437
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source, a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source, a prism sheet disposed to face the first main surface, and a reflection sheet disposed to face the second main surface. The light-guiding plate includes a plurality of first slope sections and a plurality of second slope sections both provided on one of the first main surface and the second main surface. A proportion of area occupied by the second slope sections increases in a predetermined range from the second end surface, as a distance from the second end surface increases.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventor: SHINGO OHKAWA
  • Patent number: 10400991
    Abstract: There is provided a light-emitting device that makes is possible to emit light having less luminance unevenness.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: September 3, 2019
    Assignee: SONY CORPORATION
    Inventor: Shingo Ohkawa
  • Patent number: RE47891
    Abstract: A display has a member irradiated by a surface light source device comprising a light diffusion member and emission device. The emission device is provided with a light flux control member having a recess and light control emission face which is configurated so as to satisfy Conditions 1 and 2 in a range at least covering a half-intensity-angular-range. Light emitting element(s) may be sealed. Condition 1 is that relation ?5/?1>1 is satisfied except for light emitted from a light emitting element toward within an angular-neighbourhood of a standard optical axis of the emission device, and Condition 2 is that value of ?5/?1 decreases gradually according to increasing of ?1, where ?1 is an emission angle of any light at being emitted from the light emitting element, and ?5 is an emission angle of that light of ?1 at then being emitted from the light control emission face of the light flux control member.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: March 3, 2020
    Assignee: Enplas Corporation
    Inventors: Masao Yamaguchi, Shingo Ohkawa