Patents by Inventor Hiromichi Atsuumi

Hiromichi Atsuumi 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: 11131850
    Abstract: A display apparatus includes a screen configured to form an intermediate image by being irradiated with light, a front windshield configured to display a virtual image by being irradiated with light forming the intermediated image, a reflection member configured to reflect light going out from the screen to the front windshield, and a rotation shaft configured to rotate the reflection member. The rotation shaft is tilted with respect to a pitch axis. The reflection member has notches formed thereon.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 28, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kento Nakamura, Makoto Hirakawa, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
  • Patent number: 10831021
    Abstract: A display device includes a screen to form an intermediate image with light; a concave mirror, and a first mirror disposed between the screen and the concave mirror. The first mirror includes a first reflective area to reflect the light emitted from the screen to the concave mirror; a second reflective area to reflect the light emitted from the concave mirror to an area where a virtual image is formed; and a common reflective area in which the first reflective area and the second reflective area at least partly overlap on each other.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kento Nakamura, Takehide Ohno, Hiromichi Atsuumi, Naoki Miyatake, Kazuhiro Fujita, Yuki Hayashi
  • Patent number: 10783606
    Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3<Rm/L<3, where Rm denotes a radius of curvature of the intermediate image forming unit in the main scanning direction, and L denotes distance between a reference point when the optical scanner deflects and scans the light and a center of the intermediate image formed on the intermediate image forming unit. In the vehicle, the image display apparatus indicates the intermediate image to a driver as a virtual image.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
  • Patent number: 10613321
    Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 7, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
  • Patent number: 10572972
    Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3<Rm/L<3, where Rm denotes a radius of curvature of the intermediate image forming unit in the main scanning direction, and L denotes distance between a reference point when the optical scanner deflects and scans the light and a center of the intermediate image formed on the intermediate image forming unit. In the vehicle, the image display apparatus indicates the intermediate image to a driver as a virtual image.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: February 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
  • Patent number: 10573213
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
  • Publication number: 20190361232
    Abstract: A display apparatus 1 includes a screen 13 configured to form an intermediate image by being irradiated with light, a front windshield 15 configured to display a virtual image 25 by being irradiated with light forming the intermediated image, a reflection member 31 configured to reflect light going out from the screen 13 to the front windshield 15, and a rotation shaft 32 configured to rotate the reflection member 31. The rotation shaft 32 is tilted with respect to a pitch axis (X-axis). The reflection member 31 has notches 41 formed thereon.
    Type: Application
    Filed: February 2, 2018
    Publication date: November 28, 2019
    Inventors: Kento NAKAMURA, Makoto HIRAKAWA, Hiromichi ATSUUMI, Naoki MIYATAKE, Yuki HAYASHI
  • Publication number: 20190213938
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source unit to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively. In the image display apparatus, the two scanning lines have two different starting points for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 11, 2019
    Inventors: Hiromichi ATSUUMI, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
  • Publication number: 20190204591
    Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.
    Type: Application
    Filed: November 30, 2018
    Publication date: July 4, 2019
    Inventors: Naoki NAKAMURA, Daisuke ICHII, Hiromichi ATSUUMI, Naoki MIYATAKE, Yuki HAYASHI
  • Publication number: 20190156454
    Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3<Rm/L<3, where Rm denotes a radius of curvature of the intermediate image forming unit in the main scanning direction, and L denotes distance between a reference point when the optical scanner deflects and scans the light and a center of the intermediate image formed on the intermediate image forming unit. In the vehicle, the image display apparatus indicates the intermediate image to a driver as a virtual image.
    Type: Application
    Filed: January 23, 2019
    Publication date: May 23, 2019
    Inventors: Hiromichi ATSUUMI, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
  • Patent number: 10290248
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source unit to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws, two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively. in the image display apparatus, the two scanning lines have two different starting points for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 14, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
  • Patent number: 10191274
    Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: January 29, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
  • Patent number: 10078217
    Abstract: An image display device includes an image forming unit configured to emit light forming an image; and a concave mirror configured to reflect the light emitted from the image forming unit toward a transparent reflecting member. The image forming unit includes a transparent member on which the image is formed or which forms the image, the transparent member being curved bulging toward the concave mirror.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 18, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuki Hayashi, Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake
  • Publication number: 20180252916
    Abstract: A display device includes a screen to form an intermediate image with light; a concave mirror, and a first mirror disposed between the screen and the concave mirror. The first mirror includes a first reflective area to reflect the light emitted from the screen to the concave mirror; a second reflective area to reflect the light emitted from the concave mirror to an area where a virtual image is formed; and a common reflective area in which the first reflective area and the second reflective area at least partly overlap on each other.
    Type: Application
    Filed: February 1, 2018
    Publication date: September 6, 2018
    Inventors: Kento NAKAMURA, Takehide OHNO, Hiromichi ATSUUMI, Naoki MIYATAKE, Kazuhiro FUJITA, Yuki HAYASHI
  • Publication number: 20180240387
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source unit to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws, two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively. in the image display apparatus, the two scanning lines have two different starting points for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 23, 2018
    Inventors: Hiromichi ATSUUMI, Daisuke ICHII, Toshihiro YAMASHIRO, Makoto INAMOTO
  • Patent number: 9997093
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source unit to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively. In the image display apparatus, the two scanning lines have two different starting points for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: June 12, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
  • Patent number: 9864195
    Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 9, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
  • Publication number: 20170154558
    Abstract: An image display apparatus and a vehicle provided with the image display apparatus. The image display apparatus includes a light source unit to emit a laser beam, an optical deflector to deflect the laser beam two-dimensionally, and an intermediate image generator to perform two-dimensional scanning twice in a main scanning direction and a sub-scanning direction with the laser beam deflected by the optical deflector to generate an intermediate image of one frame, where the laser beam deflected by the optical deflector draws two scanning lines. In the image display apparatus, the two scanning lines have two different phases for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively. In the image display apparatus, the two scanning lines have two different starting points for the two-dimensional scanning for a first time and the two-dimensional scanning for a second time, respectively.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 1, 2017
    Inventors: Hiromichi ATSUUMI, Daisuke ICHll, Toshihiro YAMASHIRO, Makoto INAMOTO
  • Publication number: 20170154406
    Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3<Rm/L<3, where Rm denotes a radius of curvature of the intermediate image forming unit in the main scanning direction, and L denotes distance between a reference point when the optical scanner deflects and scans the light and a center of the intermediate image formed on the intermediate image forming unit. In the vehicle, the image display apparatus indicates the intermediate image to a driver as a virtual image.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 1, 2017
    Inventors: Hiromichi ATSUUMI, Yuki HAYASHI, Daisuke ICHII, Naoki NAKAMURA
  • Publication number: 20160116735
    Abstract: An image display device includes an image forming unit configured to emit light forming an image; and a concave mirror configured to reflect the light emitted from the image forming unit toward a transparent reflecting member. The image forming unit includes a transparent member on which the image is formed or which forms the image, the transparent member being curved bulging toward the concave mirror.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 28, 2016
    Inventors: Yuki HAYASHI, Naoki NAKAMURA, Daisuke ICHll, Hiromichi ATSUUMI, Naoki MIYATAKE