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公开(公告)号：US20160159280A1
公开(公告)日：2016-06-09
申请号：US14900560
申请日：2014-07-01
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.
Abstract translation: 车辆的图像合成装置包括图像发生器和误差检测器。 从配置到车辆的多个摄像机使得每个照相机的成像区域与相邻摄像机的成像区域部分重叠，图像生成器获取分配给各个摄像机的区域的图像，并且合成所获取的图像以生成围绕 从车辆上方观察的车辆。 错误检测器检测相机中的错误。 当误差检测器检测到相机中的故障相机时，图像发生器从与相机相邻的相机拍摄的图像中获取与由故障相机拍摄的图像重叠的重叠部分，使用重叠部分来生成 合成图像，并且将图像增强应用于重叠部分。
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公开(公告)号：US20150103410A1
公开(公告)日：2015-04-16
申请号：US14403961
申请日：2013-05-28
Applicant: DENSO CORPORATION
Inventor： Hiroshi Ando , Takayuki Fujikawa
CPC classification number: G02B27/0101 , G02B3/0043 , G02B3/0056 , G02B26/10 , G02B27/48 , G02B2027/0118
Abstract: A head-up display apparatus projects a display image onto a projection surface of a windshield so that a viewer views a virtual image of the display image from an eye box. A screen used in the apparatus is constructed of a plurality of micromirrors. Each micromirror has a convex surface portion being curved to magnify a laser beam toward the eye box. A scanned surface of the screen is provided by an array of the convex surface portions. In a cross section intersecting the scanned surface, adjacent convex surface portions have different curved shapes. Thus, brightness unevenness of the display image caused by interference of laser beams can be reduced while maintaining a simple structure of the screen such as a microlens array.
Abstract translation: 平视显示装置将显示图像投影到挡风玻璃的投影表面上，使得观看者从眼箱观看显示图像的虚拟图像。 设备中使用的屏幕由多个微镜构成。 每个微反射镜具有弯曲的凸表面部分，以朝向眼箱放大激光束。 屏幕的扫描表面由凸表面部分的阵列提供。 在与扫描表面相交的横截面中，相邻的凸面部分具有不同的弯曲形状。 因此，可以在保持诸如微透镜阵列的屏幕的简单结构的同时减少由激光束的干涉引起的显示图像的亮度不均匀性。
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公开(公告)号：US08736964B2
公开(公告)日：2014-05-27
申请号：US13649439
申请日：2012-10-11
Applicant: DENSO Corporation
Inventor： Hideaki Imahori , Takayuki Fujikawa , Hiroshi Ando
CPC classification number: G02B27/0101 , G02B5/18 , G02B2027/0118 , G02B2027/012
Abstract: A head-up display apparatus forms a virtual image of a display image viewed from a viewpoint region by projecting the display image onto a projection face. The apparatus includes a screen member and an optical device. The screen member includes an image formation face that forms the display image. The optical device includes a reflection face, which receives and reflects the display image by the image formation face, to project onto the projection face. The image formation face includes, in a grid array, convex portions and concave portions, which are convex and concave from a virtual reference face and alternated with each other along x axis and y axis. A perpendicular line to the virtual reference face at any position of the image formation face passes through an outside of the reflection face of the optical device.
Abstract translation: 平视显示装置通过将显示图像投影到投影面上，形成从视点区域观看的显示图像的虚拟图像。 该装置包括屏幕部件和光学装置。 屏幕构件包括形成显示图像的图像形成面。 光学装置包括反射面，该反射面通过图像形成面接收并反射显示图像，突出到投影面上。 图像形成面包括网格阵列中的凸部和凹部，凸部和凹部从虚拟参考面凸起和凹入，并且沿x轴和y轴彼此交替。 与图像形成面的任意位置的虚拟参照面的垂直线通过光学元件的反射面的外侧。
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公开(公告)号：US20130094092A1
公开(公告)日：2013-04-18
申请号：US13649439
申请日：2012-10-11
Applicant: Denso Corporation
Inventor： Hideaki Imahori , Takayuki Fujikawa , Hiroshi Ando
IPC: G02B27/01
CPC classification number: G02B27/0101 , G02B5/18 , G02B2027/0118 , G02B2027/012
Abstract: A head-up display apparatus forms a virtual image of a display image viewed from a viewpoint region by projecting the display image onto a projection face. The apparatus includes a screen member and an optical device. The screen member includes an image formation face that forms the display image. The optical device includes a reflection face, which receives and reflects the display image by the image formation face, to project onto the projection face. The image formation face includes, in a grid array, convex portions and concave portions, which are convex and concave from a virtual reference face and alternated with each other along x axis and y axis. A perpendicular line to the virtual reference face at any position of the image formation face passes through an outside of the reflection face of the optical device.
Abstract translation: 平视显示装置通过将显示图像投影到投影面上，形成从视点区域观看的显示图像的虚拟图像。 该装置包括屏幕部件和光学装置。 屏幕构件包括形成显示图像的图像形成面。 光学装置包括反射面，该反射面通过图像形成面接收并反射显示图像，突出到投影面上。 图像形成面包括网格阵列中的凸部和凹部，凸部和凹部从虚拟参考面凸起和凹入，并且沿x轴和y轴彼此交替。 与图像形成面的任意位置的虚拟参照面的垂直线通过光学元件的反射面的外侧。
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公开(公告)号：US12153241B2
公开(公告)日：2024-11-26
申请号：US17877249
申请日：2022-07-29
Inventor： Hiroshi Ando , Kazuyuki Ishihara , Masatoshi Tsuji
Abstract: An optical member includes a light guide body. The light guide body has an incident surface on which an outside light is incident, a first surface having flat portions and prism portions, an incident light incident on the incident surface reaching the first surface for the first time, and a second surface arranged opposite to the flat portions. The flat portions totally reflect the incident light toward the second surface. The second surface totally reflects a reflected light reflected by the flat portion toward the first surface. The prism portion has an ejection surface to emit the incident light to outside.
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Patent Agency Ranking
公开(公告)号：US12140740B2
公开(公告)日：2024-11-12
申请号：US17835029
申请日：2022-06-08
Inventor： Masatoshi Tsuji , Kodai Takeda , Hiroshi Ando
Abstract: An optical device introduces light from an outdoor view in a blind spot area hidden by an obstacle. The optical device includes a first reflector that reflects a part of light and transmits another part of the light, and a second reflector placed between a back surface of the first reflector and the obstacle and apart from the first reflector. The second reflector has a reflective surface that reflects light incident from the first reflector toward the first reflector. A light shield is placed at a front surface of the first reflector to block external light incident on and reflected from the front surface of the first reflector. The light shield includes light-shielding plates arranged at an interval in a vertical direction such that each light-shielding plate is horizontal. The first reflector is parallel to the reflective surface of the second reflector and tilted from a vertical axis.
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公开(公告)号：US11448880B2
公开(公告)日：2022-09-20
申请号：US16585854
申请日：2019-09-27
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Hiroshi Ando
IPC: G02B27/01
Abstract: A light guide unit forms an optical path to guide a display light emitted from a display unit toward a projection portion. The light guide unit includes a negative optical element and a positive optical element. The negative optical element is placed on the optical path and has a negative optical power. The positive optical element is placed on the optical path and is closer to the projection portion than the negative optical element. The positive optical element has a positive optical power. The positive optical element is a diffractive optical element having a diffractive structure configured to diffract the display light.
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公开(公告)号：US10156720B2
公开(公告)日：2018-12-18
申请号：US14910279
申请日：2014-07-24
Applicant: DENSO CORPORATION
Inventor： Hiroshi Ando , Shinji Kashiwada
Abstract: An information display apparatus reflects light representing information off a projection target to display the information as a virtual image, and includes a projector, at least two image forming devices and a focus adjusting device. The projector projects the light representing information. The image forming devices, to which the light from the projector is projected, are on an optical path from the projector to the projection target. At least one of the image forming devices is at a distance from the projector different from that of other image forming devices. The focus adjusting device adjusts a focal length of one optical system on an optical path from the projector to each of the image forming devices such that the light from the projector is in focus at each of the image forming devices. An image of information on each of the image forming devices is reflected off the projection target.
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公开(公告)号：US10001646B2
公开(公告)日：2018-06-19
申请号：US14710941
申请日：2015-05-13
Applicant: DENSO CORPORATION
Inventor： Hiroshi Ando , Makoto Sakai
CPC classification number: G02B27/01 , G02B26/10 , G02B27/0101 , G02B2027/011 , G02B2027/014
Abstract: A head-up display includes a concave mirror actuator that changes, based on external instructions, a reflection angle by which a concave mirror reflects display light. A drawing unit includes a beam generator, a scanner, an optical actuator, and a controller, The beam generator emits a beam, and the scanner scans the beam in two dimensions by moving a reflection surface to draw an image. The optical actuator changes an angle of incidence of when the beam is emitted to the scanner. The controller drives the optical actuator to change the angle of incidence such that display light distortions generated at the concave mirror are offset by display light distortions generated at the scanner.
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公开(公告)号：US09778461B2
公开(公告)日：2017-10-03
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.
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