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公开(公告)号：US11646000B2
公开(公告)日：2023-05-09
申请号：US17698473
申请日：2022-03-18
Inventor： Masanaga Tsuji , Toshiya Mori , Ken'ichi Kasazumi , Yoshiteru Mino , Tadashi Shibata , Nobuyuki Nakano , Akira Tanaka , Shohei Hayashi
CPC classification number: G09G5/37 , B60K35/00 , G02B27/0101 , G02B27/0179 , G06T5/006 , G06T19/006 , G08G1/0967 , G09G5/003 , B60K2370/1531 , B60K2370/186 , G02B2027/011 , G02B2027/0112 , G02B2027/0141 , G02B2027/0183 , G09G2340/0464 , G09G2340/0492 , G09G2340/12 , G09G2360/18 , G09G2380/10
Abstract: An image display system includes a display unit displaying an image, a projection unit projecting in a target space a virtual image corresponding to the image with an output light of the display unit, a body unit provided thereto the display unit and the projection unit, and an image producing unit including a first correction unit and a second correction unit. The first correction unit performs a first correction processing of correcting, based on a first orientation signal indicative of a first orientation change of the body unit, a display position of the virtual image in the target space. The second correction unit performs a second correction processing of correcting, based on a second orientation signal indicative of a second orientation change of the body unit which is faster than the first orientation change, the display position of the virtual image in the target space.
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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
Inventor： Ken'ichi Kasazumi , Kosuke Kubota , Masahito Ogata , Toshiya Mori
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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公开(公告)号：US11106045B2
公开(公告)日：2021-08-31
申请号：US16941136
申请日：2020-07-28
Inventor： Ken'ichi Kasazumi , Toshiya Mori
Abstract: The display system displays a virtual image as if it is at a target position in a target space. The system satisfies a condition where |1/L1−1/L2max| is larger than 0 but is equal to or smaller than 0.06. L1 [m] denotes a display distance defined as a distance from a point-of-view position for the virtual image to a display position of the virtual image. L2max [m] denotes a maximum value of a target distance defined as a distance from the point-of-view position to the target position.
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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
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：US10571701B2
公开(公告)日：2020-02-25
申请号：US16068393
申请日：2017-01-10
Inventor： Ken'ichi Kasazumi , Toshiya Mori , Kosuke Kubota , Masahito Ogata
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220082853A1
公开(公告)日：2022-03-17
申请号：US17537138
申请日：2021-11-29
Inventor： Satoru TANAHASHI , Shigeo Kasahara , Naoki Kamada , Toshiya Mori , Ken'ichi Kasazumi
IPC: G02B30/27
Abstract: This display device includes: a display unit including a plurality of pixels that is arrayed; an optical element array arranged in parallel with a light exit surface of the display unit and including a plurality of optical elements that is arrayed; and a controller that controls a pixel among the plurality of pixels to be non-lighting, the pixel overlapping a boundary portion between adjacent optical elements among the plurality of optical elements in a facing direction in which the display unit and the optical element array face each other.
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公开(公告)号：US11780368B2
公开(公告)日：2023-10-10
申请号：US17484976
申请日：2021-09-24
Inventor： Toshiya Mori , Ken'ichi Kasazumi
IPC: B60R1/00 , H04N13/302 , H04N13/351 , H04N13/111 , G02B30/27 , H04N7/18
CPC classification number: B60R1/00 , G02B30/27 , H04N7/181 , H04N13/111 , H04N13/302 , H04N13/351 , B60R2300/8066
Abstract: An electronic mirror system presents circumstances surrounding a moving vehicle by displaying an image presenting the circumstances surrounding the moving vehicle. The electronic mirror system includes an image display and an optical system. The image display displays, every time image data is acquired from an image capturing unit, the image, based on the image data acquired from the image capturing unit, on a display screen. The image capturing unit continuously shoots video presenting the circumstances surrounding the moving vehicle. The optical system condenses, into an eye box, a light beam representing the image displayed on the display screen to make a user, who has a viewpoint inside the eye box, view a virtual image based on the image displayed on the display screen. The display screen is arranged to be tilted with respect to an optical path that leads from the display screen to the optical system (30).
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8.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
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 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
Inventor： Hiroaki Okayama , Satoshi Kuzuhara , Masahito Ogata , Toshiya Mori , Ken'ichi Kasazumi , Masafumi Sueyoshi
IPC: G03B21/56 , G02B27/01 , H04N5/74 , H04N13/30 , H04N5/64 , B60R11/02 , G02B30/00 , G03B21/28 , B60K35/00 , G02B26/10
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：US11004424B2
公开(公告)日：2021-05-11
申请号：US16354820
申请日：2019-03-15
Inventor： Masanaga Tsuji , Toshiya Mori , Ken'ichi Kasazumi , Yoshiteru Mino , Tadashi Shibata , Nobuyuki Nakano , Akira Tanaka , Shohei Hayashi
Abstract: An image display system includes a display unit displaying an image, a projection unit projecting in a target space a virtual image corresponding to the image with an output light of the display unit, a body unit provided thereto the display unit and the projection unit, and an image producing unit including a first correction unit and a second correction unit. The first correction unit performs a first correction processing of correcting, based on a first orientation signal indicative of a first orientation change of the body unit, a display position of the virtual image in the target space. The second correction unit performs a second correction processing of correcting, based on a second orientation signal indicative of a second orientation change of the body unit which is faster than the first orientation change, the display position of the virtual image in the target space.
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