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公开(公告)号：US20240126094A1
公开(公告)日：2024-04-18
申请号：US18391202
申请日：2023-12-20
Inventor： Norihiro IMAMURA , Kenji NAGATOMI , Michihiro YAMAGATA , Keiichi MATSUZAKI , Hirofumi HOSHIDA
IPC: G02B27/14
Abstract: A display apparatus includes a housing and at least one mirror. The housing can be detachably mounted on a display and includes an entrance that allows light emitted from the display to enter the interior of the housing with the housing mounted on the display and an exit that allows the light having entered the interior of the housing through the entrance to exit to the exterior of the housing. The at least one mirror reflects the light having entered the interior of the housing through the entrance to the exit.
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公开(公告)号：US20210197725A1
公开(公告)日：2021-07-01
申请号：US17125578
申请日：2020-12-17
Inventor： Norihiro IMAMURA , Kenji NAGATOMI , Michihiro YAMAGATA , Shoji SO , Keiichi MATSUZAKI
Abstract: A tangent line, described next, is, in top view, parallel to a straight line extending in a width direction of the display surface in a range in which the attitude can be changed. The tangent line is present on a plane orthogonal to the up-down direction of the automobile, and contacts a center of the final reflective surface. In top view, of an angle formed by a straight line connecting a center of the final reflective surface with a center of the display surface and the tangent line of the final reflective surface, a supplementary angle which is supplementary to an angle that is on a rear side of the automobile and that is on a side where the observer is present is an acute angle of less than 90 degrees.
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3.发明申请公开(公告)号：US20200314297A1
公开(公告)日：2020-10-01
申请号：US16829686
申请日：2020-03-25
Inventor： Keiichi MATSUZAKI , Michihiro YAMAGATA , Norihiro IMAMURA
Abstract: An imaging optical system includes a lens system including a first lens, a second lens, a third lens, and a fourth lens, which are arranged in this order such that the first lens is located closest to an object, out of these four lenses and that the fourth lens is located closest to an image formed, out of these four lenses. One surface, facing the object, of the first lens has negative power. The other surface, facing the image, of the first lens has negative power as well.
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公开(公告)号：US20230302902A1
公开(公告)日：2023-09-28
申请号：US18101424
申请日：2023-01-25
Inventor： Norihiro IMAMURA , Kenji NAGATOMI , Keiichi MATSUZAKI , Hirofumi HOSHIDA
CPC classification number: B60K35/00 , G09G3/36 , G09G2380/10 , G09G2354/00 , G09G2330/027 , G02B5/003
Abstract: A display system includes: a display device switchable between an emitting state where first image light is allowed to be emitted from the display device and a non-emitting state where the first image light is not allowed to be emitted from the display device; an optical device switchable between a reflecting state where light coming from a back of the mobile body is reflected from the optical device and a transmitting state where the light passes through the optical device; and an operation receiver that receives an operation for switching the display system between a first mode where the display device is in the emitting state while the optical member is in the transmitting state and a second mode where the display device is in the non-emitting state while the optical member is in the reflecting state.
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公开(公告)号：US20190299858A1
公开(公告)日：2019-10-03
申请号：US16361876
申请日：2019-03-22
Inventor： Norihiro IMAMURA , Michihiro YAMAGATA , Keiichi MATSUZAKI
IPC: B60R1/00 , H04N13/383 , H04N13/302 , G06T5/00 , B60R1/04 , B60R1/12 , G02B5/10
Abstract: Disclosed herein is a display system including an image producing unit and an optical system part. The image producing unit produces an image on a display screen by letting a light beam, which eventually forms a virtual image based on the image produced, emerge from the display screen. The optical system part forms a left-eye image and a right-eye image on a user's left and right eyes, respectively, and thereby projects the virtual image toward a user's left and right eyes by reflecting and/or refracting the light beam emerging from the display screen. The optical system part has an image distortion generation factor to make an image distortion of the left-eye image different from an image distortion of the right-eye image.
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Patent Agency Ranking
公开(公告)号：US20180015876A1
公开(公告)日：2018-01-18
申请号：US15715828
申请日：2017-09-26
Inventor： Michihiro YAMAGATA , Keiichi MATSUZAKI
CPC classification number: B60Q3/12 , B60K35/00 , B60K2370/1529 , B60K2370/23 , B60K2370/334 , B60K2370/736 , B60K2370/744 , B60Q3/50 , G02B26/0816 , G02B27/0101 , G02B27/0149 , G02B2027/0127 , G02B2027/014 , G02B2027/0154 , G02B2027/0159 , G02B2027/0185 , G03B21/142 , G03B21/28 , G03B29/00 , H04N9/3138 , H04N9/317
Abstract: A head-up display device includes a display element, a movable mirror, one or more first and second mirrors, and an movable unit. The display element emits light to form a display image. The movable mirror first reflects light emitted from the display element. The one or more first and second mirrors reflect light reflected off the movable mirror to project a virtual image. The movable unit adjusts a position of the movable mirror to adjust a projection distance of the virtual image. The movable mirror is disposed at a position such that light incident to the movable mirror is non-parallel to a normal of the movable mirror.
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公开(公告)号：US20170357088A1
公开(公告)日：2017-12-14
申请号：US15671299
申请日：2017-08-08
Inventor： Keiichi MATSUZAKI , Michihiro YAMAGATA
CPC classification number: G02B27/01 , B60K35/00 , B60K2350/405 , G02B5/30 , G02B6/3512 , G02B6/3516 , G02B26/10 , G02B27/0101 , G02B27/0149 , G02B27/10 , G02B27/123 , G02B27/28 , G02B27/40 , G02B2006/12104 , G02B2027/014 , G02B2027/0154 , G02B2027/0159 , G02B2027/0183 , G02B2027/0185 , G02B2027/0187 , H04N5/74
Abstract: A head-up display device includes a display element, a beam splitter, a movable mirror, first and second mirrors, and a movable unit. The display element emits light to form a display image. The beam splitter being an optical member that reflects light or through which light is transmitted, reflects light emitted from the display element. The movable mirror reflects light reflected off the beam splitter. The first and second mirrors that reflect light movable mirror, or through which the light transmitted through the beam splitter is transmitted, project a virtual image. The movable unit adjusts a distance between the movable mirror and the beam splitter to adjust a projection distance of the virtual image.
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8.发明申请公开(公告)号：US20200314303A1
公开(公告)日：2020-10-01
申请号：US16830887
申请日：2020-03-26
Inventor： Michihiro YAMAGATA , Norihiro IMAMURA , Keiichi MATSUZAKI
Abstract: A camera system includes an image sensor, a wavelength filter, and an imaging optical system. The image sensor has an image capturing plane. The imaging optical system is configured to have light coming from a subject passed through the wavelength filter and imaged on the image capturing plane. The wavelength filter has a perpendicularly incident region and an obliquely incident region. On the perpendicularly incident region, a principal ray, which has passed through the imaging optical system, is incident perpendicularly. On the obliquely incident region, a principal ray, which has passed through the imaging optical system, is incident obliquely. The image sensor has sensitivity to a light ray having a predetermined wavelength. The light ray having the predetermined wavelength is transmitted at a higher transmittance through at least a part of the obliquely incident region than through the perpendicularly incident region.
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公开(公告)号：US20190129170A1
公开(公告)日：2019-05-02
申请号：US16174681
申请日：2018-10-30
Inventor： Keiichi MATSUZAKI , Michihiro YAMAGATA
IPC: G02B27/01
Abstract: A display system of one aspect according to the present disclosure includes: a display unit; a first optical member; and a second optical member. The display unit includes a display surface for displaying an image. The first optical member includes a first reflective surface for reflecting rays of light constituting the image. The second optical member includes a second reflective surface for reflecting rays of light reflected from the first reflective surface to form a virtual image in a target space. An angle of view in a length direction of an available area for display of the virtual image with regard to a point of view position for the virtual image is denoted by θ [deg]. A length of the display surface is denoted by W [mm]. W is equal to or greater than a prescribed value given by 12.0×θ−26.6. θ is equal to or greater than 8.0.
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公开(公告)号：US20210311301A1
公开(公告)日：2021-10-07
申请号：US17211065
申请日：2021-03-24
Inventor： Norihiro IMAMURA , Keiichi MATSUZAKI , Kenji NAGATOMI
Abstract: A display device includes: a display element including a display surface on which image is displayed; a first mirror and a second mirror that reflects emission light emitted from the display surface of the display element; and a polarization element. The polarization element is configured to reflect and transmit the emission light from display surface. The emission light from display surface is reflected off polarization element twice and transmitted through polarization element once by a time the emission light is reflected off first mirror and second mirror and exits from display device.
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