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公开(公告)号：US20210082326A1
公开(公告)日：2021-03-18
申请号：US17103771
申请日：2020-11-24
Inventor： Susumu Uragami , Yuta Yamamoto , Hiroyuki Furuya , Yoshiro Kashiwabara
Abstract: An image display device includes: a light source; a screen on which an image is formed when light from the light source is applied thereto; an optical system configured to generate a virtual image by light from the screen; an actuator configured to move the screen in an optical axis direction; a position detector configured to detect a movement position of the screen; a servo circuit configured to cause the movement of the screen by the actuator to follow a target waveform on the basis of a signal from the position detector; and a correction circuit configured to reduce a deviation between a timing to move the screen by the servo circuit and a timing to form the image on the screen.
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公开(公告)号：US10444501B2
公开(公告)日：2019-10-15
申请号：US16002012
申请日：2018-06-07
Inventor： Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto , Susumu Uragami
Abstract: The image display device further includes a scanning unit that uses light from the light source to scan the movable screen and the fixed screen, and an optical system that uses light from the movable screen and the fixed screen to generate a virtual image, a drive unit that moves the movable screen, a structure body that supports the fixed screen at a fixed position such that the fixed screen is closer to the optical system than the movable screen is, and a magnetic cover that covers a movable part of the drive unit. The structure body covers an area around an opening of the magnetic cover to shield the movable part of the drive unit from stray light travelling backward via the optical system.
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公开(公告)号：US10409063B2
公开(公告)日：2019-09-10
申请号：US15880783
申请日：2018-01-26
Inventor： Susumu Uragami , Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto
Abstract: An image display device includes a light source, a screen, a scanning unit, an optical system, a drive unit, a support base, and a fixed base. The screen is irradiated with light from the light source, and an image is thus formed on the screen. The scanning unit scans the light from the light source along multiple scanning lines on the screen. The optical system forms a virtual image using the light from the screen. The drive unit moves the screen in an optical axis direction. The support base supports the drive unit. The fixed base supports the support base via a damper. The support base is supported by the fixed base such that the support base has support rigidity higher in a first direction in which a visual distance of a display image is changed in association with the movement of the screen than in directions other than the first direction.
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公开(公告)号：US10261317B2
公开(公告)日：2019-04-16
申请号：US15991708
申请日：2018-05-29
Inventor： Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto , Susumu Uragami
Abstract: The image display device includes a light source, screens on which images are formed by being irradiated with light from the light source, a scanning unit that scans the screens by using the light from the light source, an optical system that generates a virtual image by using light from the screens, and a drive unit that includes a holder for integrally supporting the screens and moves the screens together with the holder The screens are aligned in a direction perpendicular to a movement direction of the holder caused by the drive unit, and are installed at positions that are shifted from each other by a certain distance in the movement direction.
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公开(公告)号：US09835859B2
公开(公告)日：2017-12-05
申请号：US15226123
申请日：2016-08-02
Inventor： Hiroyuki Furuya , Takahisa Shiramizu , Susumu Uragami , Yoshiro Kashiwabara
CPC classification number: G02B27/0101 , B60K2350/2052 , G02B27/0149 , G02B27/104 , G02B2027/0114 , G02B2027/0127 , G02B2027/014 , G02B2027/0159 , H04N9/3129
Abstract: An image display device includes a light source that emits a light beam, a screen, a scanning section that scans the screen with the light beam, an optical system, a drive section, and a screen drive circuit. The optical system generates a virtual image by using the light beam that has passed through the screen. The drive section moves the screen at least in parallel to a travel direction of the light beam. The screen drive circuit contains a drive signal table that stores an information group for use in generating a drive signal tailored to stop the screen at different stop locations over different stop periods. The screen drive circuit selects first information in the drive signal table which is associated with displaying of an image and supplies the drive section with a first drive signal generated from the first information.
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Patent Agency Ranking
公开(公告)号：US12066337B2
公开(公告)日：2024-08-20
申请号：US17709722
申请日：2022-03-31
Inventor： Yuta Moriura , Hironobu Ukitsu , Susumu Uragami , Takashi Matsumoto , Hiroyuki Furuya , Akira Ito
IPC: G01L1/14
CPC classification number: G01L1/144
Abstract: A load sensor includes: a base member being insulative and having elasticity; an electrode having elasticity and formed on an upper face of the base member; and a wire member being electrically conductive and disposed so as to be superposed on an upper face of the electrode, a surface of the wire member being covered by a dielectric body. A ratio of a thickness of the electrode to a thickness of the base member is not less than 0.02 and not greater than 0.3.
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公开(公告)号：US11880085B2
公开(公告)日：2024-01-23
申请号：US17061531
申请日：2020-10-01
Inventor： Hiroyuki Furuya , Susumu Uragami , Akira Kurozuka
CPC classification number: G02B7/00 , G02B3/0075 , G02B5/0278 , G02B27/0101
Abstract: A resin component holding member is made of a metal material and holds a predetermined resin component. The resin component holding member includes, in at least a region with which the resin component can be in contact, a configuration for preventing alkaline residue caused by chemical treatment from permeating into the resin component.
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公开(公告)号：US10462435B2
公开(公告)日：2019-10-29
申请号：US15726449
申请日：2017-10-06
Inventor： Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto , Susumu Uragami
Abstract: Image display device includes; light source; screen on which an image is drawn by being scanned two-dimensionally by laser light; scanner that causes the laser light to scan the screen; mirror drive circuit that chives scanner; and an optical system that generates a virtual image of the image drawn on screen. On screen, there are arranged a plurality of lens regions so as to be arranged individually in a first direction and a second direction perpendicular to the first direction, and mirror drive circuit sets a plurality of scan lines such that a pitch of the scan lines can become smaller than a pitch of lens regions in the second direction.
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公开(公告)号：US10302938B2
公开(公告)日：2019-05-28
申请号：US15413496
申请日：2017-01-24
Inventor： Susumu Uragami , Hiroyuki Furuya , Takahisa Shiramizu , Akira Kurozuka , Yuta Yamamoto
Abstract: A light source device includes a laser light source, a first adjustment mechanism, a second adjustment mechanism, and a mirror. The laser light source emits laser light. The first adjustment mechanism is configured such that the laser light from the laser light source is incident thereto, and performs an emission angle adjustment of the laser light and a focus adjustment of the laser light. The second adjustment mechanism is configured such that the laser light from the first adjustment mechanism is incident thereto, and performs a positional adjustment of the incident laser light. The mirror is configured such that the laser light from the second adjustment mechanism is incident thereto, and emits the incident laser light in a predetermined direction. An image display apparatus includes the above light source device.
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公开(公告)号：US09989778B2
公开(公告)日：2018-06-05
申请号：US15345415
申请日：2016-11-07
Inventor： Hiroyuki Furuya
CPC classification number: G02B27/48 , B60K35/00 , B60K2350/2047 , B60K2350/2052 , B60K2350/2056 , G02B26/105 , G02B27/0101 , G02B2027/011 , G03B21/2033 , G03B21/2046 , G03B21/28 , G03B21/625 , H04N9/3129 , H04N9/3155 , H04N9/3161 , H04N9/3164
Abstract: An image display device includes a light source, a scanner, a screen, a virtual image optical system and a screen incident angle correcting optical system. The light source emits laser light. The scanner scans the laser light. An image is formed on the screen by the scanned laser light. The virtual image optical system generates a virtual image of the image by the laser light having transmitted through the screen. The screen incident angle correcting optical system orients the scanned laser light toward the screen. The scanner performs at least first scanning and second scanning that has a scanning direction different from a scanning direction of the first scanning. The screen includes a lenticular lens having a lens pitch in a direction parallel to the first scanning. The lens pitch of the lenticular lens is larger than a beam diameter of the laser light near a light receiving surface of the screen.
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