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公开(公告)号：US11933980B2
公开(公告)日：2024-03-19
申请号：US18139495
申请日：2023-04-26
CPC分类号： G02B27/0101 , B60K35/00 , G02B5/0891 , G02B5/10 , G02B27/0018 , G02B27/0068 , B60K2370/334 , G02B2027/011 , G02B2027/0118
摘要： The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.
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公开(公告)号：US10670864B2
公开(公告)日：2020-06-02
申请号：US15768840
申请日：2015-10-27
摘要： Provided is a small-sized information display device displaying video image information as a virtual image by use of an eyepiece optical system including a concave mirror having desired reflection characteristics in a specific polarization direction, where a liquid crystal display panel is used as a video image light source. The information display device has a liquid crystal display panel as a flat display forming video image information disposed therein, and includes a virtual image optical system including a member to be projected for displaying virtual images in front of a vehicle by making a video image displayed on the liquid crystal display panel reflect on the member to be projected. The virtual image optical system includes a concave mirror, and a reflective film of the concave mirror has desired reflection characteristics in a specific polarization direction, so that virtual images having uniform brightness and chromaticity can be obtained.
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公开(公告)号：USRE50118E1
公开(公告)日：2024-09-10
申请号：US18081853
申请日：2022-12-15
发明人： Yuki Nagano , Souta Sato , Yuji Fujita , Takumi Nakada , Kazuomi Kaneko
IPC分类号： G09G3/02 , B60K35/00 , G02B27/01 , G09G3/00 , G09G5/00 , G09G5/38 , B60K35/23 , B60K35/65 , B60K35/81
CPC分类号： G09G3/02 , B60K35/00 , G02B27/0101 , G02B27/0149 , G02B27/0179 , G09G3/001 , G09G5/00 , G09G5/38 , B60K35/23 , B60K35/654 , B60K35/658 , B60K35/81 , B60K2360/23 , B60K2360/334 , G02B2027/0118 , G02B2027/014 , G02B2027/0159 , G02B2027/0181 , G02B2027/0183 , G02B2027/0187 , G09G2320/06 , G09G2320/0626 , G09G2354/00 , G09G2360/144 , G09G2380/10
摘要： An image display apparatus 100 for a vehicle is provided with: an image display unit 2 that has a light source and a display element and outputs image light; a mirror 3 that reflects the image light output by the image display unit 2 toward a windshield 7; a mirror drive unit 4 that changes the angle and position of the mirror 3; and a control unit 10 that determines amounts of change in the angle and position of the mirror and controls the mirror drive unit 4. The control unit 10 makes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyes 8 changes and the display state of the image with respect to the driver does not change.
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公开(公告)号：US11828938B2
公开(公告)日：2023-11-28
申请号：US17538520
申请日：2021-11-30
CPC分类号： G02B27/0101 , B60K35/00 , G02B17/0605 , G02B27/01 , B60K2370/334 , G01C21/365 , G02B2027/011 , G02B2027/0116 , G02B2027/0118
摘要： A small information display apparatus capable of displaying video information on a windshield as a virtual image is provided. An information display apparatus configured to display video information of a virtual image on a windshield of a conveyance includes: a liquid crystal panel arranged as a video display apparatus configured to form the video information; and a virtual image optical system provided with a windshield for displaying the virtual image at a front of the conveyance by reflecting video of the liquid crystal panel by means of the windshield. The virtual image optical system is configured by arranging a concave mirror and an optical element between the concave mirror and the video display apparatus.
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公开(公告)号：US11675189B2
公开(公告)日：2023-06-13
申请号：US17714280
申请日：2022-04-06
CPC分类号： G02B27/0101 , B60K35/00 , G02B5/0891 , G02B5/10 , G02B27/0018 , G02B27/0068 , B60K2370/334 , G02B2027/011 , G02B2027/0118
摘要： The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.
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公开(公告)号：US11119315B2
公开(公告)日：2021-09-14
申请号：US15767360
申请日：2015-10-15
发明人： Koji Hirata , Masahiko Yatsu , Kazuomi Kaneko
IPC分类号： G02B27/01 , B60K35/00 , G02F1/1335 , G02F1/13363 , G09G3/36 , G02F1/13357 , G02F1/1333
摘要： A small-sized information display apparatus capable of displaying, as virtual images, different pieces of video image information at different positions in a wide area of a windshield. An embodiment has a virtual image optical system in which a flat display forming video image information is arranged, and that includes a projected member for causing virtual images to be displayed at a plurality of positions ahead of a vehicle by reflecting a video image on the flat display, thereby forming the virtual images at the plurality of positions so as to correspond to a viewpoint position of a driver. The virtual image optical system is arranged so that video image light fluxes for establishing the respective virtual images are separated from and independent of one another between the flat display and a concave mirror, and is configured by arranging different optical elements so as to correspond to the respective light fluxes.
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公开(公告)号：US10942353B2
公开(公告)日：2021-03-09
申请号：US16837207
申请日：2020-04-01
摘要： Provided is a small-sized information display device displaying video image information as a virtual image by use of an eyepiece optical system including a concave mirror having desired reflection characteristics in a specific polarization direction, where a liquid crystal display panel is used as a video image light source. The information display device has a liquid crystal display panel as a flat display forming video image information disposed therein, and includes a virtual image optical system including a member to be projected for displaying virtual images in front of a vehicle by making a video image displayed on the liquid crystal display panel reflect on the member to be projected. The virtual image optical system includes a concave mirror, and a reflective film of the concave mirror has desired reflection characteristics in a specific polarization direction, so that virtual images having uniform brightness and chromaticity can be obtained.
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公开(公告)号：US10788665B2
公开(公告)日：2020-09-29
申请号：US15766414
申请日：2015-10-09
发明人： Masahiko Yatsu , Kazuomi Kaneko , Shigeki Hoshino
IPC分类号： G02B27/01 , B60K35/00 , G02B27/09 , G02F1/13357
摘要： Provided is a head-up display device which has a virtual image plane shape becoming a part of a concave shape as viewed from the driver side. This head-up display device (30) includes: an image forming unit (10) that displays image information; and a projection optical system including an ocular optical system (5) that displays a virtual image by reflecting light emitted from the image forming unit (10). The ocular optical system (5) includes spherical lenses (51), (52), (53), and a free-form curved surface mirror (56), and is configured by arranging the spherical lenses (51), (52), (53) and the free-form curved surface mirror (56) in this order along the light emission direction.
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公开(公告)号：US10690911B2
公开(公告)日：2020-06-23
申请号：US15766398
申请日：2015-10-09
发明人： Masahiko Yatsu , Koji Hirata , Kazuomi Kaneko
摘要： A head-up display device includes: an image formation unit which emits light including image information; and a projection optical system including an ocular optical system which displays a virtual image by reflecting the light emitted from the image formation unit. The ocular optical system includes spherical lenses, a free-form curved surface lens, a reflection mirror, and a free-form curved surface mirror, and is configured by arranging, in a space on the side of the ocular optical system of a plane conjugate with the virtual image plane with respect to the ocular optical system, a first small lens system which achieves first focus position movement and on which separated light from the image formation unit is made to be incident, and a second small lens system which achieves second focus position movement and on which separated light from the image formation unit is made to be incident.
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公开(公告)号：US11327303B2
公开(公告)日：2022-05-10
申请号：US16328985
申请日：2017-06-23
摘要： The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.
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