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公开(公告)号：US11377033B2
公开(公告)日：2022-07-05
申请号：US17174815
申请日：2021-02-12
Inventor： Kenji Nagatomi , Norihiro Imamura , Michihiro Yamagata
Abstract: A display system includes: a display device in a mobile body; a concave mirror for displaying, in a first mode, a virtual image of a display image shown by image light emitted by the display device; and a plane mirror for reflecting, in a second mode, a rear-view image shown by light that has entered the mobile body. In a top view of the mobile body, the display device and the concave mirror are disposed such that a straight line connecting centers of the display device and the concave mirror has a predetermined angle relative to a front-and-rear direction of the mobile body. A normal direction at a center of a concave mirror surface of the concave mirror when the first mode is functioning and a normal direction normal to a plane mirror surface of the plane mirror when the second mode is functioning are not parallel.
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公开(公告)号：US11146715B2
公开(公告)日：2021-10-12
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：US11110861B2
公开(公告)日：2021-09-07
申请号：US17031270
申请日：2020-09-24
Inventor： Norihiro Imamura , Michihiro Yamagata , Kenji Nagatomi
Abstract: A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.
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公开(公告)号：US10427598B2
公开(公告)日：2019-10-01
申请号：US15715828
申请日：2017-09-26
Inventor： Michihiro Yamagata , Keiichi Matsuzaki
IPC: G02B27/01 , G02B26/08 , B60Q3/12 , B60K35/00 , B60Q3/50 , G03B21/14 , G03B21/28 , G03B29/00 , H04N9/31
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：US11235706B2
公开(公告)日：2022-02-01
申请号：US17080366
申请日：2020-10-26
Inventor： Norihiro Imamura , Kenji Nagatomi , Hirofumi Hoshida , Michihiro Yamagata , Keiichi Matsuzaki , Shoji So
Abstract: A display system includes: a display that emits light corresponding to image information; a half mirror that receives the light emitted, reflects, as reflected light, a first component of the light received, and transmits a second component different from the first component; and a first reflecting mirror having a concave surface that receives and reflects the reflected light toward the half mirror. The half mirror includes a first retardation film, a first support substrate, and a reflective polarizing film stacked in this order from a side on which the light emitted is received. The first retardation film changes a phase of the light received. The first support substrate is light-transmissive. The reflective polarizing film reflects a first polarized component and transmits a second polarized component different from the first polarized component.
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Patent Agency Ranking
公开(公告)号：US10606031B2
公开(公告)日：2020-03-31
申请号：US16387334
申请日：2019-04-17
Inventor： Norihiro Imamura , Michihiro Yamagata , Tsuguhiro Korenaga
IPC: H04N5/225 , G02B13/00 , G03B13/36 , G03B15/00 , A61B5/00 , H04N5/369 , H04N9/04 , G02B3/00 , G02B5/20 , H04N5/232 , H04N13/218
Abstract: An imaging apparatus includes a lens optical system, a color image sensor that includes at least first pixels and second pixels, and a first optical element array disposed between the lens optical system and the color image sensor. In the imaging apparatus, the lens optical system includes optical regions, and the optical regions include a first optical region and a second optical region that differ in terms of at least one selected from the group of spectral transmittance characteristics and transmissive polarization characteristics. The first pixels include respective spectral filters having mutually different spectral transmittance characteristics, and the second pixels include respective spectral filters having at least one type of spectral transmittance characteristics. The first optical element array directs light that has passed through the first optical region to the first pixels and directs light that has passed through the second optical region to the second pixels.
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公开(公告)号：US11370360B2
公开(公告)日：2022-06-28
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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公开(公告)号：US10310219B2
公开(公告)日：2019-06-04
申请号：US14680485
申请日：2015-04-07
Inventor： Norihiro Imamura , Michihiro Yamagata , Tsuguhiro Korenaga
IPC: H04N5/225 , G02B13/00 , G03B13/36 , G03B15/00 , A61B5/00 , G02B3/00 , G02B5/20 , H04N5/232 , H04N5/369 , H04N9/04 , H04N13/02
Abstract: An imaging apparatus includes a lens optical system, a color image sensor that includes at least first pixels and second pixels, and a first optical element array disposed between the lens optical system and the color image sensor. In the imaging apparatus, the lens optical system includes optical regions, and the optical regions include a first optical region and a second optical region that differ in terms of at least one selected from the group of spectral transmittance characteristics and transmissive polarization characteristics. The first pixels include respective spectral filters having mutually different spectral transmittance characteristics, and the second pixels include respective spectral filters having at least one type of spectral transmittance characteristics. The first optical element array directs light that has passed through the first optical region to the first pixels and directs light that has passed through the second optical region to the second pixels.
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公开(公告)号：US10247866B2
公开(公告)日：2019-04-02
申请号：US15361779
申请日：2016-11-28
Inventor： Michihiro Yamagata , Tsuguhiro Korenaga , Norihiro Imamura , Takamasa Ando
IPC: G02B5/30 , G02B3/00 , G03B11/00 , G01J1/04 , G01J4/04 , G01J1/42 , G02B13/22 , H04N5/225 , H04N9/04
Abstract: An image capture device according to the present disclosure includes: a lens optical system L; an image sensor N on which light that has passed through the lens optical system L is incident and which includes at least a plurality of first pixels and a plurality of second pixels; and an array of optical elements K which is arranged between the lens optical system and the image sensor. The lens optical system has a first optical region D1 which transmits mostly light vibrating in the direction of a first polarization axis and a second optical region D2 which transmits mostly light vibrating in the direction of a second polarization axis that is different from the direction of the first polarization axis. The array of optical elements makes the light that has passed through the first optical region D1 incident on the plurality of first pixels and also makes the light that has passed through the second optical region D2 incident on the plurality of second pixels.
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公开(公告)号：US10198622B2
公开(公告)日：2019-02-05
申请号：US14403235
申请日：2014-03-26
Inventor： Naomi Anzue , Norihiro Imamura , Michihiro Yamagata , Yoshimitsu Noguchi
Abstract: An electronic mirror device 100 according to an aspect of the present disclosure displays a user's facial mirror image, and can shift, according to the user's facial orientation or line of sight, the location where the facial image is displayed to a location where he or she can view his or her own facial image easily. The electronic mirror device 100 according to an aspect of the present disclosure includes an image capturing section 102 which captures the user's facial image, an image data generating section 120 which outputs image data representing the user's facial mirror image based on image data representing the user's facial image that has been captured, a display section 103 which displays the image data representing the user's facial mirror image, and a display location shifting section 130 which shifts a location where the mirror image is displayed on the display section.
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