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公开(公告)号：US20230341605A1
公开(公告)日：2023-10-26
申请号：US18190237
申请日：2023-03-27
Inventor： Hiroshi ANDO , Kazuyuki ISHIHARA
IPC: F21V8/00
CPC classification number: G02B6/0036 , G02B6/0053 , G02B6/0055
Abstract: An optical member includes a light guide body that includes an incident surface on which a light from a blind area is incident, multiple reflecting surfaces configured to reflect the light from the incident surface, a smooth surface configured to reflect the light reflected by the reflecting surfaces, and multiple prisms protruding from the reflecting surfaces in a normal direction of the reflecting surfaces and configured to emit the light from the incident surface and the light reflected by the smooth surface to an outside of the light guide body. The prisms are arranged at intervals in a first direction intersecting the normal direction and are arranged at intervals in a second direction intersecting the normal direction and the second direction. Each of the reflecting surfaces is positioned between the adjacent prisms such that reflecting surfaces are arranged at intervals in the first direction and the second direction.
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公开(公告)号：US20200174279A1
公开(公告)日：2020-06-04
申请号：US16780263
申请日：2020-02-03
Applicant: DENSO CORPORATION
Inventor： Kazuyuki ISHIHARA , Hiroshi ANDO
Abstract: A three-dimensional display device includes an image display, one or more color-generating refractors, and a viewpoint refractor. The image display is configured to use color generators arranged in a longitudinal direction and a lateral direction to display parallax images, two or more of the color generators acting as a pixel element for a single pixel. The color-generating refractor is configured to, while transmitting light emitted via the color generators, diverge or converge the light at a preset angle for each of the color generators. The viewpoint refractor is configured to refract the light toward respective viewpoints while transmitting the light transmitted through the color-generating refractor.
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Patent Agency Ranking
公开(公告)号：US20200096765A1
公开(公告)日：2020-03-26
申请号：US16697795
申请日：2019-11-27
Applicant: DENSO CORPORATION
Inventor： Kazuhisa ONDA , Hiroshi ANDO
Abstract: A light diffusion member constituting a head-up display device includes multiple micro-lenses and has a curved base surface. The edge angle is larger than the base surface angle change amount. The edge angle is an angle formed by one of tangent lines of two micro-lenses and the other of the tangent lines passing through a boundary between two adjacent micro-lenses on a cross section orthogonal to the base surface. A reference line has a constant direction on the cross section, and a normal line passes at an arbitrary position on the base surface. The maximum value is θmax and the minimum value is θmin among angles between the normal line and the reference line. The base surface angle change amount is the absolute value of the difference between θmax and θmin.
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公开(公告)号：US20190337454A1
公开(公告)日：2019-11-07
申请号：US16513080
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Takashi TAKAZAWA , Makoto SAKAI , Hiroshi ANDO
Abstract: An image synthesizer apparatus for vehicle includes an image generator and an error detector. From multiple cameras arranged to a vehicle so that an imaging region of each camera partially overlaps with an imaging region of an adjacent camera, the image generator acquires images of areas allocated to the respective cameras, and synthesizes the acquired images to generate a synthetic image around the vehicle viewed from a viewpoint above the vehicle. The error detector detects errors in the cameras. When the error detector detects a faulty camera in the cameras, the image generator acquires, from the image captured by the camera adjacent to the faulty camera, an overlap portion overlapping with the image captured by the faulty camera, uses the overlap portion to generate the synthetic image, and applies image reinforcement to the overlap portion.
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公开(公告)号：US20180315361A1
公开(公告)日：2018-11-01
申请号：US15769466
申请日：2016-06-08
Applicant: DENSO CORPORATION
Inventor： Kazuhisa ONDA , Hiroshi ANDO
Abstract: A scanning unit scans laser light emitted from a laser light emitting unit. A condensing lens condenses the laser light scanned with the scanning unit and forms a beam. A screen forms the display image thereon upon incidence of the beam formed with the condensing unit. A projection unit projects the display image formed on the screen onto the display member. The screen includes a micromirror array or a microlens array. When the beam is incident on any point of the micromirror array or the microlens array, two or more components forming the micromirror array or the microlens array overlap with a spot of the beam. When a center of the beam and a center of any component among the components are matched, a center of a neighboring component next to the component of interest is outside the spot of the beam.
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公开(公告)号：US20160004075A1
公开(公告)日：2016-01-07
申请号：US14766069
申请日：2014-02-03
Applicant: DENSO CORPORATION
Inventor： Hiroshi ANDO , Takayuki FUJIKAWA , Masayuki YAMAGUCHI
IPC: G02B27/01 , B60R1/00 , H04N9/31 , G02B5/18 , G02B27/00 , G03B21/20 , G03B21/14 , G06T19/00 , G02B5/02
CPC classification number: G02B27/0101 , B60K35/00 , B60R1/001 , B60R2300/205 , G02B3/0043 , G02B5/02 , G02B5/0278 , G02B5/1842 , G02B27/0037 , G02B2027/0118 , G02B2027/013 , G03B21/147 , G03B21/2033 , G03B33/06 , G06T19/006 , H04N9/31 , H04N9/3129
Abstract: An HUD device includes a laser scanner that projects laser light carrying a display image, and a screen member that has a plurality of optical elements arrayed in the form of a grating, and diffuses laser light which emanates from the laser scanner and enters the optical elements toward a projection surface. The optical elements have curved surfaces, which take on a convexly curved form as a common curved form, formed as their faces, and diffuse laser light which is emitted to the projection surface from the curved surfaces. The optical elements are configured so that an element width differs in at least one array direction of the array of the grating between adjoining optical elements.
Abstract translation: HUD装置包括：投影带有显示图像的激光的激光扫描器;以及具有以光栅形式排列的多个光学元件的屏幕部件，并且扩散从激光扫描器发出的激光并进入光学元件 朝向投影面。 光学元件具有弯曲表面，它们以形成为它们的面的共同弯曲形状的凸形弯曲形式，以及从弯曲表面发射到投影表面的漫射激光。 光学元件被构造为使得元件宽度在相邻光学元件之间的光栅阵列的至少一个阵列方向上不同。
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公开(公告)号：US20150323793A1
公开(公告)日：2015-11-12
申请号：US14699503
申请日：2015-04-29
Applicant: DENSO CORPORATION
Inventor： Makoto SAKAI , Hiroshi ANDO
CPC classification number: G02B27/0149 , G02B26/0816 , G02B27/0018 , G02B2027/0156 , G02B2027/0163
Abstract: A head-up display device is for projecting display light onto a projection member. The head-up display device includes a display, a reflecting member, an outside light prevention portion, and a state controller. The display emits the display light. The reflecting member reflects the display light emitted from the display in a reflection direction to project the display light onto the projection member. The outside light prevention portion changes between an entering state in which outside light is able to enter the display and a preventing state in which outside light is prevented from entering the display. The state controller controls the outside light prevention portion to be (i) in the entering state when the display light is projected onto the projection member and (ii) in the preventing state when the display light is not projected onto the projection member.
Abstract translation: 平视显示装置用于将显示光投影到投影部件上。 平视显示装置包括显示器，反射部件，外部防光部分和状态控制器。 显示屏发出显示灯。 反射构件反射从显示器发射的反射方向的显示光，以将显示光投影到投影构件上。 外部防光部分在外部光能够进入显示器的进入状态和防止外部光线进入显示器的防止状态之间改变。 状态控制器将外部防光部控制为（i）当显示光投影到突出部件上时处于进入状态，以及（ii）当显示光不投射到突出部件上时的防止状态。
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