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公开(公告)号：US20190329716A1
公开(公告)日：2019-10-31
申请号：US16508280
申请日：2019-07-10
Inventor： KOSUKE KUBOTA , KEN'ICHI KASAZUMI , TOSHIYA MORI
IPC: B60R11/02
Abstract: A display device that displays a virtual image by projecting an image onto a display medium includes: a light source unit; a screen that is movably disposed on an optical path from the light source unit to the display medium; a self-emitting display unit that is disposed adjacent to the optical path; a scan unit that scans the screen with the light emitted from the light source unit; and a drive unit that moves the screen along the optical path. The screen is disposed to project an image imaged on the screen by scanning of the scan unit onto the display medium. The self-emitting display unit is disposed to project an image generated by the self-emitting display unit onto the display medium.
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公开(公告)号：US20200012097A1
公开(公告)日：2020-01-09
申请号：US16319536
申请日：2017-07-18
Inventor： KOSUKE KUBOTA , KEN'ICHI KASAZUMI , MASAHITO OGATA , TOSHIYA MORI
IPC: G02B27/01
Abstract: A HUD device that allows an occupant of a moving body to view a virtual image by projecting an image on a display medium includes a display item information acquisition unit that acquires display item information showing position and display content of display item, a travel information acquisition unit that acquires travel information indicating position of the moving body at predetermined time intervals, and a state information acquisition unit that acquires state information indicating state of the moving body, and specifies at display timings display position on the basis of position indicated by display item information and position indicated by travel information acquired last. The HUD device includes a display controller that specifies display position on the basis of position indicated by display item information and correction position obtained by correcting position indicated by travel information acquired last in accordance with state indicated by state information and displays an image showing display content indicated by display item information at the specified display position on the display medium when a predetermined condition is satisfied.
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公开(公告)号：US20190196187A1
公开(公告)日：2019-06-27
申请号：US16328714
申请日：2017-09-08
Inventor： KEN'ICHI KASAZUMI , KOSUKE KUBOTA , MASAHITO OGATA , TOSHIYA MORI
CPC classification number: G02B27/0101 , B60K35/00 , G02B26/10 , G02B26/101 , G02B27/01 , G02B27/0179 , G02B27/22 , G02B2027/0127 , G02B2027/0138 , G02B2027/014 , G02B2027/0181
Abstract: A display apparatus that displays a virtual image having a shape that follows an object to be superimposed when viewed from a user is provided. An optical system that is included in the display apparatus and displays a virtual image that is three-dimensional includes a laser that emits laser light, a MEMS scanner that performs scanning with the laser light, a screen that forms an image on a surface of the screen with the MEMS scanner scanning the surface with the laser light, a projection unit that generates a virtual image by projecting the image formed onto a display medium, and a drive unit that reciprocates the screen scanned with the laser light in a predetermined section along an optical path of the optical system at a predetermined cycle. The MEMS scanner changes a vertical movement speed of a scan line according to a shape of an object included in a background and is superimposed with the virtual image in scanning performed with the laser light at a scanning cycle in synchronization with a cycle of the reciprocation.
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4.发明申请公开(公告)号：US20190391392A1
公开(公告)日：2019-12-26
申请号：US16469188
申请日：2017-12-11
Inventor： MASAHITO OGATA , TOSHIYA MORI , KEN'ICHI KASAZUMI , HIROAKI OKAYAMA
Abstract: A screen includes a surface inclined with respect to a reference plane. A driver moves the screen in a movement direction orthogonal to the reference plane. When forming a first virtual image serving as a virtual image on a first virtual plane whose inclination angle α with respect to an optical axis of a projector is smaller than a predetermined value, a controller is configured to hold the screen in the movement direction. When forming a second virtual image serving as the virtual image on a second virtual plane whose inclination angle β with respect to the optical axis of the projector is larger than the predetermined value, the controller is configured to move the screen in the movement direction.
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公开(公告)号：US20180314064A1
公开(公告)日：2018-11-01
申请号：US16026109
申请日：2018-07-03
Inventor： KEN'ICHI KASAZUMI , TOSHIYA MORI , HIROAKI OKAYAMA , SATOSHI KUZUHARA , YOSUKE ASAI
Abstract: A head-up display includes an optical system that radiates light forming a projected image toward an eye box. The eye box is a predetermined range in which eyes of an observer are assumed to be present. The optical system includes a Fresnel lens having a bumpy surface having a sawtooth-shaped cross-section. The bumpy surface is formed concentrically around an optical axis, and formed by alternately disposing first surfaces as light condensing surfaces that allow incident light to converge toward a focal point, and second surfaces as wall surfaces that do not allow the incident light to converge toward the focal point. The second surfaces are inclined with respect to the optical axis of the Fresnel lens at an angle to reflect the incident light striking the wall surfaces, in a direction toward outside of a range of the eye box.
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Patent Agency Ranking
公开(公告)号：US20180188530A1
公开(公告)日：2018-07-05
申请号：US15738645
申请日：2016-06-13
Inventor： KEN'ICHI KASAZUMI , TOSHIYA MORI , HIROAKI OKAYAMA , SATOSHI KUZUHARA
Abstract: To provide a display device that can suppress generation of a double image. Display device includes plate-shape windshield having translucency and a projection unit that projects light expressing an image onto windshield such that the light is reflected toward a user by windshield. The projection unit changes a display distance between an eye of the user and a position of an image visually recognized as a virtual image by the user through windshield by the light projection. Windshield is formed such that a wedge angle that is of an angle formed between a front side and a back side at a region located at any level of windshield is continuously decreased with increasing level.
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公开(公告)号：US20190293936A1
公开(公告)日：2019-09-26
申请号：US16437981
申请日：2019-06-11
Inventor： HIROAKI OKAYAMA , SATOSHI KUZUHARA , MASAHITO OGATA , TOSHIYA MORI , KEN'ICHI KASAZUMI , MASAFUMI SUEYOSHI
IPC: G02B27/01
Abstract: In a display device, an irradiation unit includes an imaging optical system. The imaging optical system scans and irradiates a front surface of a screen with light to form an image. The light passing through the screen and output from the screen in a movement direction is incident on a projection unit as incident light. The projection unit irradiates a reflective member with the incident light to allow the reflective member to reflect the incident light to form a virtual image corresponding to the image in a target space. A locus of a focal position of the imaging optical system when the irradiation unit wholly scans the front surface of the screen is within a range between the front surface of the screen at a first position and the front surface of the screen at a second position.
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公开(公告)号：US20190018240A1
公开(公告)日：2019-01-17
申请号：US16066356
申请日：2016-11-21
Inventor： KEN'ICHI KASAZUMI , TOSHIYA MORI , KOSUKE KUBOTA , MASAHITO OGATA
Abstract: The display device includes: a display unit that projects a light beam onto a windshield so that the light beam is reflected from the windshield such that one or more virtual images are displayed in a space further than the windshield in a depth direction through the windshield; and a controller that controls the display unit so that a first vertical image and a second vertical image included in the one or more virtual images and have different distances from the windshield in the depth direction, are displayed in a time-division manner.
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公开(公告)号：US20190011611A1
公开(公告)日：2019-01-10
申请号：US16068956
申请日：2017-01-10
Inventor： KEN'ICHI KASAZUMI , TOSHIYA MORI , KOSUKE KUBOTA , MASAHITO OGATA , HIROAKI OKAYAMA , SATOSHI KUZUHARA
Abstract: The present invention provides a Fresnel lens that can reduce generation of concentric stray light. The Fresnel lens includes a sawtooth corrugated face that is formed by alternately disposing a first face inclined relative to optical axis A and a second face substantially parallel to optical axis A, and a light shielding mask is formed at a position corresponding to the second face.
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公开(公告)号：US20180157037A1
公开(公告)日：2018-06-07
申请号：US15738637
申请日：2016-06-01
Inventor： KEN'ICHI KASAZUMI , TOSHIYA MORI , HIROAKI OKAYAMA , SATOSHI KUZUHARA , HIROYUKI FURUYA , AKIRA KUROZUKA , SHINSUKE NAKAZONO
CPC classification number: G02B27/0101 , B60K35/00 , B60K2370/1529 , B60R2300/308 , G02B26/10 , G02B26/101 , G02B27/01 , G02B2006/0098 , G02B2027/0138 , G02B2027/014 , G02B2027/0154 , G02B2027/0183 , G06F2203/04803 , G06K9/00671 , G09G1/007 , G09G3/025 , G09G2310/0264
Abstract: A display device displays a virtual image of a first picture and a virtual image of a second picture by using a display medium. This display device includes a light source that emits light, a fixed screen, a movable screen, a driver, and a scanner. The fixed screen is fixedly disposed on an optical path between the light source and the display medium. The movable screen is also disposed on this optical path. The driver moves the movable screen along the optical path. The scanner scans the fixed screen and the movable screen with the light emitted from the light source, thereby forming the first picture on the fixed screen and the second picture on the movable screen.
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