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公开(公告)号：US11433817B2
公开(公告)日：2022-09-06
申请号：US17230618
申请日：2021-04-14
Inventor： Norihiro Imamura , Shigeru Furumiya
IPC: B60R1/12 , G02B5/30 , G02F1/13363 , G02B27/28 , G02F1/1335
Abstract: A display apparatus includes a first mirror and a half mirror between a display device and a concave mirror. The first mirror reflects emission light emitted from an elongate display surface of the display device, toward the half mirror. The half mirror reflects the light reflected by the first mirror, toward the concave mirror. The concave mirror reflects the light reflected by the half mirror, toward the half mirror. In a top view of the display apparatus, a line passing through a center of the display surface in a longitudinal direction and parallel to the longitudinal direction and a tangent line passing through a center of a reflection surface of the concave mirror in a longitudinal direction and parallel to the longitudinal direction intersect at a predetermined angle.
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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：US11366311B2
公开(公告)日：2022-06-21
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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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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Patent Agency Ranking
公开(公告)号：US10757370B2
公开(公告)日：2020-08-25
申请号：US15843845
申请日：2017-12-15
Inventor： Norihiro Imamura , Tsuguhiro Korenaga , Kunio Nobori , Takeo Azuma , Kazufumi Mizusawa
Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
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公开(公告)号：US10730440B2
公开(公告)日：2020-08-04
申请号：US15987677
申请日：2018-05-23
Inventor： Norihiro Imamura , Shoji Soh , Katsuyuki Morita
IPC: B60R1/12 , H04N13/385 , B60R1/04 , H04N5/232 , H04N13/30 , H04N13/376 , H04N7/18
Abstract: A display system includes a display surface and a display mirror. The display surface is configured to display image P1 based on a captured image. The display mirror is configured to reflect, as reflection image P2, only a partial area in the image displayed on the display surface. The display system is configured so that a position of reflection image P2 changes as a point of view of a subject viewing the display mirror moves.
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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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公开(公告)号：US11006081B2
公开(公告)日：2021-05-11
申请号：US16932270
申请日：2020-07-17
Inventor： Norihiro Imamura , Tsuguhiro Korenaga , Kunio Nobori , Takeo Azuma , Kazufumi Mizusawa
Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
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公开(公告)号：US20200351473A1
公开(公告)日：2020-11-05
申请号：US16932270
申请日：2020-07-17
Inventor： Norihiro Imamura , Tsuguhiro KORENAGA , Kunio NOBORI , Takeo AZUMA , Kazufumi MIZUSAWA
Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
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