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公开(公告)号：US20170059861A1
公开(公告)日：2017-03-02
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.
Abstract translation: 图像显示装置包括发射光束的光源，屏幕，用光束扫描屏幕的扫描部分，光学系统，驱动部分和屏幕驱动电路。 光学系统通过使用已经通过屏幕的光束产生虚像。 驱动部至少平行于光束的行进方向移动屏幕。 屏幕驱动电路包含驱动信号表，该驱动信号表存储用于产生用于在不同停止时段的不同停止位置停止屏幕的驱动信号的信息组。 屏幕驱动电路选择与图像的显示相关联的驱动信号表中的第一信息，并向驱动部提供从第一信息生成的第一驱动信号。
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公开(公告)号：US20180139418A1
公开(公告)日：2018-05-17
申请号：US15726449
申请日：2017-10-06
Inventor： HIROYUKI FURUYA , AKIRA KUROZUKA , YUTA YAMAMOTO , SUSUMU URAGAMI
CPC classification number: H04N9/3141 , G02B3/0043 , G02B26/0841 , G02B26/123 , G02B27/0031 , G02B27/0101 , G02B2027/0112 , G02B2027/0118 , G03B21/26 , G03B21/62 , H04N9/3135
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：US20170264872A1
公开(公告)日：2017-09-14
申请号：US15426041
申请日：2017-02-06
Inventor： SUSUMU URAGAMI , HIROYUKI FURUYA , TAKAHISA SHIRAMIZU , AKIRA KUROZUKA , YUTA YAMAMOTO
IPC: H04N9/31
CPC classification number: H04N9/3185 , G02B27/01 , G02B27/0101 , G02B2027/0127 , G02B2027/0145 , H04N9/3129
Abstract: An image display device includes a light source, a screen, an optical system, a screen driving mechanism unit, a memory unit, and a screen driving circuit unit. An image is formed on the screen by being irradiated with light from the light source. The screen driving mechanism unit moves the screen in an optical axis direction of the light. A smoothed movement profile is obtained by smoothing a movement profile used as a target for moving the screen so as to make a moving speed of the screen vary gently. The memory unit stores screen driving waveform information that has been generated so that the screen follows the smoothed movement profile. The screen driving circuit unit drives the screen driving mechanism unit, based on the screen driving waveform information stored in the memory unit.
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公开(公告)号：US20170212347A1
公开(公告)日：2017-07-27
申请号：US15403408
申请日：2017-01-11
Inventor： SUSUMU URAGAMI , TAKAHISA SHIRAMIZU , AKIRA KUROZUKA , HIROYUKI FURUYA
CPC classification number: G02B27/0149 , G02B2027/0123 , G09G3/002 , G09G2380/10
Abstract: An image display device includes a light source, a screen, an optical system and a driving unit. The screen is irradiated with light from the light source to form an image. The optical system generates a virtual image with the light from the screen. The driving unit moves the screen in an optical axis direction. The driving unit includes a holder, one or more elastic members and a driving source. The holder holds the screen. The one or more elastic members support the holder so as to enable the holder to reciprocally move in the optical axis direction. The driving source generates force for moving the holder in the optical axis direction.
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公开(公告)号：US20190018239A1
公开(公告)日：2019-01-17
申请号：US16013981
申请日：2018-06-21
Inventor： AKIRA KUROZUKA , YUTA YAMAMOTO , SUSUMU URAGAMI , HIROYUKI FURUYA
Abstract: The disclosure provides a light source device and an image display device. The light source device includes a laser light source configured to emit laser light having a wavelength in a range from 635 nm to 645 nm inclusive, a temperature sensor configured to detect temperature around the light source device, and a laser control circuit configured to control the laser light source. The laser control circuit approximates, with use of a quartic expression, change in threshold current of the laser light source relative to temperature, and approximates, with use of a quadratic expression, change in slope efficiency of the laser light source relative to temperature, to obtain threshold current and slope efficiency of the laser light source corresponding to detection temperature of the temperature sensor, and controls the laser light source in accordance with the threshold current and the slope efficiency thus obtained.
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Patent Agency Ranking
公开(公告)号：US20180374407A1
公开(公告)日：2018-12-27
申请号：US16001469
申请日：2018-06-06
Inventor： HIROYUKI FURUYA , AKIRA KUROZUKA , YUTA YAMAMOTO , SUSUMU URAGAMI
CPC classification number: G09G3/025 , B60K35/00 , B60K2370/333 , B60K2370/334 , B60K2370/52 , G02B27/0101 , G02B2027/011 , G03B21/602 , G03B21/625 , G09G3/001 , G09G2380/10 , H04N9/3108 , H04N9/3129 , H04N9/3135 , H04N9/3155 , H04N9/3161 , H04N9/3164
Abstract: Provided is an image display device capable of effectively enhancing image quality of a display image with a simple configuration. The image display device includes a light source, a screen configured to be two-dimensionally scanned with laser light to draw an image on the screen, a scanning unit configured to scan the screen with the laser light, a mirror drive circuit configured to drive the scanning unit, and an optical system configured to generate a virtual image of the image drawn on the screen. On the screen, a plurality of lens regions are arranged so as to individually line up in two directions different from each other. Rows of the lens regions in one of the two directions are inclined relatively at a predetermined inclination angle with respect to main scan directions of the laser light to the screen.
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公开(公告)号：US20180239140A1
公开(公告)日：2018-08-23
申请号：US15880783
申请日：2018-01-26
Inventor： SUSUMU URAGAMI , HIROYUKI FURUYA , AKIRA KUROZUKA , YUTA YAMAMOTO
CPC classification number: G02B27/0149 , B60K37/02 , B60K2370/155 , B60K2370/333 , B60K2370/334 , B60K2370/81 , G02B26/085 , G02B2027/0154 , H04N9/3129 , H04N9/3141 , H04N9/3164
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：US20170227763A1
公开(公告)日：2017-08-10
申请号：US15413496
申请日：2017-01-24
Inventor： SUSUMU URAGAMI , HIROYUKI FURUYA , TAKAHISA SHIRAMIZU , AKIRA KUROZUKA , YUTA YAMAMOTO
IPC: G02B27/01 , F21V29/503 , F21V14/04
CPC classification number: G02B27/0101 , F21V13/04 , F21V14/04 , F21V29/74 , F21Y2115/30 , G02B2027/0112 , G03B21/16
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：US20210318188A1
公开(公告)日：2021-10-14
申请号：US17354907
申请日：2021-06-22
Inventor： SUSUMU URAGAMI , HIROYUKI FURUYA , YUTA MORIURA , TAKASHI MATSUMOTO , HIRONOBU UKITSU , SHINOBU MASUDA , MITSUTAKA MATSUMOTO , YUI SAWADA
IPC: G01L1/14
Abstract: Provided is a pressure-sensitive element having a relatively wide measurement range of a pressing force and a relatively simple structure while having more sufficient stretchability. A pressure-sensitive element includes a base material, a plurality of conductor wires, a plurality of dielectrics, and a filamentous member. The base material includes an elastic conductor having elasticity and conductivity. Further, the base material has a sheet shape. The plurality of conductor wires are arranged in parallel so as to individually intersect with the elastic conductor in plan view. Further, each of the plurality of conductor wires has a plurality of inflection parts. The plurality of dielectrics are arranged between the elastic conductor and the plurality of conductor wires. The filamentous member elongates so as to intersect with the plurality of conductor wires in plan view. Further, the filamentous member sews the plurality of conductor wires to the base material.
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公开(公告)号：US20180364480A1
公开(公告)日：2018-12-20
申请号：US16002012
申请日：2018-06-07
Inventor： HIROYUKI FURUYA , AKIRA KUROZUKA , YUTA YAMAMOTO , SUSUMU URAGAMI
CPC classification number: G02B27/0149 , B60K35/00 , B60K2370/334 , B60K2370/52 , G02B3/005 , G02B3/0068 , G02B26/0833 , G02B26/105 , G02B27/0101 , G02B2027/0118 , G02B2027/0159 , G02B2027/0185 , G09G3/025 , H04N9/3108 , H04N9/3129 , H04N9/3135 , H04N9/3155 , H04N9/3161 , H04N9/3164
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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