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公开(公告)号：US10819963B2
公开(公告)日：2020-10-27
申请号：US16542302
申请日：2019-08-16
发明人： Yoshiteru Mino , Kosuke Kubota , Masahito Ogata , Yuta Yamamoto
摘要： A display device has a movable screen that is movable in a movement direction, a drive controller, a projector, and a position detector. The drive controller moves the movable screen relative to a reference position set at a prescribed position in a movement range of the movable screen. The projector performs drawing on the movable screen by irradiating the movable screen with light used for scanning the movable screen and projects a virtual image onto a target space based on light that passes through the movable screen. The position detector executes position detection processing for detecting that the movable screen is located at a detection position set in relation to the prescribed position. The position detector moves the movable screen and executes the position detection processing in a non-display period in which the movable screen is not irradiated with light from the projector.
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公开(公告)号：US10663722B2
公开(公告)日：2020-05-26
申请号：US16066356
申请日：2016-11-21
发明人： Ken'ichi Kasazumi , Toshiya Mori , Kosuke Kubota , Masahito Ogata
摘要： 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：US10571701B2
公开(公告)日：2020-02-25
申请号：US16068393
申请日：2017-01-10
发明人： Ken'ichi Kasazumi , Toshiya Mori , Kosuke Kubota , Masahito Ogata
摘要： Provided is a display device that allows a distance from a display medium to an object ahead to be easily ascertained. The display device includes a display unit that projects a light beam onto a windshield so as to be reflected from the windshield such that a virtual image is displayed in a space further than the windshield in the depth direction, and a controller that controls the display unit so that a reference pattern to be superimposed on a pedestrian present in the space is displayed so as to correspond to the position of the pedestrian.
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公开(公告)号：US11181737B2
公开(公告)日：2021-11-23
申请号：US16319536
申请日：2017-07-18
发明人： Kosuke Kubota , Ken'ichi Kasazumi , Masahito Ogata , Toshiya Mori
IPC分类号： G02B27/01
摘要： 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：US10754154B2
公开(公告)日：2020-08-25
申请号：US16576908
申请日：2019-09-20
摘要： A display device includes an image forming unit, a projection unit, a main body, and a position correcting unit. The image forming unit includes a display surface and forms an image on the display surface. The projection unit projects a virtual image corresponding to an image on a target space by using output light from the image forming unit. The main body is equipped with an image forming unit and a projection unit. The position correcting unit changes a display position of a virtual image relative to the main body on the basis of an orientation signal representing an orientation of the main body. The position correcting unit includes a plurality of correcting units that change a display position of a virtual image by using different means. The position correcting unit selects at least one correcting unit from a plurality of correcting units in accordance with a frequency component of an orientation signal, and causes the selected correcting unit to change a display position of a virtual image.
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6.发明授权公开(公告)号：US11175501B2
公开(公告)日：2021-11-16
申请号：US16469188
申请日：2017-12-11
摘要： 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 ß 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：US11137599B2
公开(公告)日：2021-10-05
申请号：US16437981
申请日：2019-06-11
发明人： Hiroaki Okayama , Satoshi Kuzuhara , Masahito Ogata , Toshiya Mori , Ken'ichi Kasazumi , Masafumi Sueyoshi
IPC分类号： G03B21/56 , G02B27/01 , H04N5/74 , H04N13/30 , H04N5/64 , B60R11/02 , G02B30/00 , G03B21/28 , B60K35/00 , G02B26/10
摘要： 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：US11125994B2
公开(公告)日：2021-09-21
申请号：US16328714
申请日：2017-09-08
发明人： Ken'ichi Kasazumi , Kosuke Kubota , Masahito Ogata , Toshiya Mori
摘要： 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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公开(公告)号：US10670780B2
公开(公告)日：2020-06-02
申请号：US16068956
申请日：2017-01-10
发明人： Ken′ichi Kasazumi , Toshiya Mori , Kosuke Kubota , Masahito Ogata , Hiroaki Okayama , Satoshi Kuzuhara
摘要： 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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