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).
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Patent number: 11131850Abstract: 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: GrantFiled: February 2, 2018Date of Patent: September 28, 2021Assignee: RICOH COMPANY, LTD.Inventors: Kento Nakamura, Makoto Hirakawa, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
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Patent number: 10831021Abstract: 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: GrantFiled: February 1, 2018Date of Patent: November 10, 2020Assignee: Ricoh Company, Ltd.Inventors: Kento Nakamura, Takehide Ohno, Hiromichi Atsuumi, Naoki Miyatake, Kazuhiro Fujita, Yuki Hayashi
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Patent number: 10783606Abstract: 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: GrantFiled: November 8, 2016Date of Patent: September 22, 2020Assignee: Ricoh Company, Ltd.Inventors: Hiromichi Atsuumi, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
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Patent number: 10613321Abstract: 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: GrantFiled: November 30, 2018Date of Patent: April 7, 2020Assignee: Ricoh Company, Ltd.Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
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Patent number: 10572972Abstract: 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: GrantFiled: January 23, 2019Date of Patent: February 25, 2020Assignee: Ricoh Company, Ltd.Inventors: Hiromichi Atsuumi, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
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Patent number: 10573213Abstract: 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: GrantFiled: March 14, 2019Date of Patent: February 25, 2020Assignee: Ricoh Company, Ltd.Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
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Publication number: 20190361232Abstract: 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: ApplicationFiled: February 2, 2018Publication date: November 28, 2019Inventors: Kento NAKAMURA, Makoto HIRAKAWA, Hiromichi ATSUUMI, Naoki MIYATAKE, Yuki HAYASHI
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Publication number: 20190213938Abstract: 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: ApplicationFiled: March 14, 2019Publication date: July 11, 2019Inventors: Hiromichi ATSUUMI, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
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Publication number: 20190204591Abstract: 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: ApplicationFiled: November 30, 2018Publication date: July 4, 2019Inventors: Naoki NAKAMURA, Daisuke ICHII, Hiromichi ATSUUMI, Naoki MIYATAKE, Yuki HAYASHI
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Publication number: 20190156454Abstract: 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: ApplicationFiled: January 23, 2019Publication date: May 23, 2019Inventors: Hiromichi ATSUUMI, Yuki Hayashi, Daisuke Ichii, Naoki Nakamura
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Patent number: 10290248Abstract: 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: GrantFiled: April 24, 2018Date of Patent: May 14, 2019Assignee: Ricoh Company, Ltd.Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
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Patent number: 10191274Abstract: 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: GrantFiled: April 25, 2017Date of Patent: January 29, 2019Assignee: RICOH COMPANY, LTD.Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
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Patent number: 10078217Abstract: 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: GrantFiled: October 16, 2015Date of Patent: September 18, 2018Assignee: RICOH COMPANY, LTD.Inventors: Yuki Hayashi, Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake
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Publication number: 20180252916Abstract: 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: ApplicationFiled: February 1, 2018Publication date: September 6, 2018Inventors: Kento NAKAMURA, Takehide OHNO, Hiromichi ATSUUMI, Naoki MIYATAKE, Kazuhiro FUJITA, Yuki HAYASHI
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Publication number: 20180240387Abstract: 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: ApplicationFiled: April 24, 2018Publication date: August 23, 2018Inventors: Hiromichi ATSUUMI, Daisuke ICHII, Toshihiro YAMASHIRO, Makoto INAMOTO
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Patent number: 9997093Abstract: 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: GrantFiled: November 8, 2016Date of Patent: June 12, 2018Assignee: Ricoh Company, Ltd.Inventors: Hiromichi Atsuumi, Daisuke Ichii, Toshihiro Yamashiro, Makoto Inamoto
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Patent number: 9864195Abstract: 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: GrantFiled: March 10, 2016Date of Patent: January 9, 2018Assignee: RICOH COMPANY, LTD.Inventors: Naoki Nakamura, Daisuke Ichii, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi
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Publication number: 20170154558Abstract: 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: ApplicationFiled: November 8, 2016Publication date: June 1, 2017Inventors: Hiromichi ATSUUMI, Daisuke ICHll, Toshihiro YAMASHIRO, Makoto INAMOTO
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Publication number: 20170154406Abstract: 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: ApplicationFiled: November 8, 2016Publication date: June 1, 2017Inventors: Hiromichi ATSUUMI, Yuki HAYASHI, Daisuke ICHII, Naoki NAKAMURA
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Publication number: 20160116735Abstract: 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: ApplicationFiled: October 16, 2015Publication date: April 28, 2016Inventors: Yuki HAYASHI, Naoki NAKAMURA, Daisuke ICHll, Hiromichi ATSUUMI, Naoki MIYATAKE