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).
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Publication number: 20240085775Abstract: 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: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: SONY GROUP CORPORATIONInventors: Shingo OHKAWA, Gen YONEZAWA
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Patent number: 11921312Abstract: 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: GrantFiled: July 7, 2021Date of Patent: March 5, 2024Assignee: SATURN LICENSING LLCInventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
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Patent number: 11892129Abstract: 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: GrantFiled: December 22, 2022Date of Patent: February 6, 2024Assignee: SATURN LICENSING LLCInventor: Shingo Ohkawa
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Patent number: 11829060Abstract: 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: GrantFiled: September 18, 2020Date of Patent: November 28, 2023Assignee: SONY GROUP CORPORATIONInventors: Shingo Ohkawa, Gen Yonezawa
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Publication number: 20230300301Abstract: A lighting device according to the present technology includes: a light source unit that has a light emitting element; a spatial light phase modulator that generates a plurality of reproduced images at intervals on an image surface by performing spatial light phase modulation on incident light from the light source unit; and a projection unit that superimposes and projects the plurality of reproduced images on a projection surface via different projection lenses.Type: ApplicationFiled: July 19, 2021Publication date: September 21, 2023Applicant: SONY GROUP CORPORATIONInventors: Shingo OHKAWA, Hiroyuki YANAGISAWA
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Publication number: 20230204167Abstract: 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: ApplicationFiled: December 22, 2022Publication date: June 29, 2023Inventor: Shingo OHKAWA
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Patent number: 11644670Abstract: 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: GrantFiled: December 6, 2018Date of Patent: May 9, 2023Assignee: SONY CORPORATIONInventor: Shingo Ohkawa
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Patent number: 11572986Abstract: 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: GrantFiled: August 18, 2021Date of Patent: February 7, 2023Assignee: SATURN LICENSING LLCInventor: Shingo Ohkawa
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Publication number: 20220382138Abstract: 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: ApplicationFiled: September 18, 2020Publication date: December 1, 2022Applicant: SONY GROUP CORPORATIONInventors: Shingo OHKAWA, Gen YONEZAWA
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Patent number: 11474600Abstract: 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: GrantFiled: May 24, 2019Date of Patent: October 18, 2022Assignee: SONY CORPORATIONInventors: Shingo Ohkawa, Ryo Ogawa, Susumu Seino
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Patent number: 11243340Abstract: 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: GrantFiled: September 18, 2020Date of Patent: February 8, 2022Assignee: Saturn Licensing LLCInventor: Shingo Ohkawa
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Publication number: 20220026708Abstract: 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: ApplicationFiled: October 18, 2019Publication date: January 27, 2022Inventor: SHINGO OHKAWA
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Publication number: 20210381661Abstract: 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: ApplicationFiled: August 18, 2021Publication date: December 9, 2021Applicant: Saturn Licensing LLCInventor: Shingo Ohkawa
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Publication number: 20210333461Abstract: 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: ApplicationFiled: July 7, 2021Publication date: October 28, 2021Applicant: Saturn Licensing LLCInventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
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Publication number: 20210325961Abstract: 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: ApplicationFiled: May 24, 2019Publication date: October 21, 2021Inventors: SHINGO OHKAWA, RYO OGAWA, SUSUMU SEINO
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Patent number: 11143871Abstract: 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: GrantFiled: February 26, 2018Date of Patent: October 12, 2021Assignee: SONY CORPORATIONInventors: Shingo Ohkawa, Ryo Ogawa, Mariko Nishiyama, Atsushi Takahashi
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Patent number: 11143365Abstract: 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: GrantFiled: January 7, 2015Date of Patent: October 12, 2021Assignee: Saturn Licensing LLCInventor: Shingo Ohkawa
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Patent number: 11086064Abstract: 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: GrantFiled: October 24, 2019Date of Patent: August 10, 2021Assignee: Saturn Licensing LLCInventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
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Patent number: 11003212Abstract: 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: GrantFiled: May 17, 2017Date of Patent: May 11, 2021Assignee: SONY CORPORATIONInventors: Shingo Ohkawa, Katsuyuki Akutsu
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Publication number: 20210055468Abstract: 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: ApplicationFiled: September 18, 2020Publication date: February 25, 2021Applicant: Saturn Licensing LLCInventor: Shingo Ohkawa