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公开(公告)号：US20160147073A1
公开(公告)日：2016-05-26
申请号：US14899508
申请日：2014-06-24
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Hiroshi Ando , Makoto Sakai
IPC: G02B27/01
CPC classification number: G02B27/0179 , B60K2350/962 , B60R1/00 , B60R2300/205 , B60R2300/308 , G02B27/01 , G02B27/0101 , G02B2027/0138 , G02B2027/014 , G02B2027/0141 , G02B2027/0183 , G02B2027/0187 , G08G1/166 , G09G2380/10
Abstract: A head-up display includes a display unit displaying images in a display region defined on a vehicle windshield, a vehicle information acquisition unit acquiring vehicle information, a forward view information acquisition unit acquiring forward view information, a display object detection unit detecting a display object for which guidance information is required to be displayed in the display region, a display control unit, and a display form setting unit. The display control unit generates a guidance image indicating the guidance information of the detected display object and displays the generated guidance image over the display object in superimposed manner on the windshield. The display form setting unit calculates an annoyance value indicative of an annoyance level felt by a vehicle occupant when displaying the guidance image in superimposed manner, and sets a display form of the guidance image so that the calculated annoyance value is within a predetermined appropriate range.
Abstract translation: 平视显示器包括在车辆挡风玻璃上限定的显示区域中显示图像的显示单元，获取车辆信息的车辆信息获取单元，获取正视图信息的前视图信息获取单元，检测显示对象的显示对象检测单元 需要在显示区域显示指导信息，显示控制单元和显示形式设置单元。 显示控制单元生成指示检测到的显示对象的引导信息的引导图像，并将所生成的引导图像重叠显示在挡风玻璃上。 显示形式设定单元计算在以重叠的方式显示引导图像时表示车辆乘客感觉到的烦恼等级的烦恼值，并且设定引导图像的显示形式，使得计算出的烦恼值在预定的适当范围内。
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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：US11656340B2
公开(公告)日：2023-05-23
申请号：US16778263
申请日：2020-01-31
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Teiyuu Kimura
CPC classification number: G01S7/4817 , G01S7/4815 , G01S7/4816 , G01S17/08 , G01S17/42
Abstract: A LIDAR device includes a light source, a mirror, a rotatable shaft, and a motor. The light source configured to emit a light beam having a predetermined light beam width for scanning a scanning zone. The rotatable shaft has a center axis parallel to a reflective surface of the mirror and is connected to a back surface of the mirror. The motor is configured to rotate the shaft to cause the mirror to swing between a first position and a second position. The light source and the mirror are arranged to have a positional relationship such that a mirror center is aligned with the light beam center when the mirror is at the first position, and the mirror center shifts within a motion area when the mirror is swinging between the first position, non-inclusive, and the second position, inclusive.
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公开(公告)号：US10095039B2
公开(公告)日：2018-10-09
申请号：US14899508
申请日：2014-06-24
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Hiroshi Ando , Makoto Sakai
Abstract: A head-up display includes a display unit displaying images in a display region defined on a vehicle windshield, a vehicle information acquisition unit acquiring vehicle information, a forward view information acquisition unit acquiring forward view information, a display object detection unit detecting a display object for which guidance information is required to be displayed in the display region, a display control unit, and a display form setting unit. The display control unit generates a guidance image indicating the guidance information of the detected display object and displays the generated guidance image over the display object in superimposed manner on the windshield. The display form setting unit calculates an annoyance value indicative of an annoyance level felt by a vehicle occupant when displaying the guidance image in superimposed manner, and sets a display form of the guidance image so that the calculated annoyance value is within a predetermined appropriate range.
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公开(公告)号：US11586041B2
公开(公告)日：2023-02-21
申请号：US16585270
申请日：2019-09-27
Applicant: DENSO CORPORATION
Inventor： Hiroshi Ando , Kazuhisa Onda
Abstract: A diffractive optical element exerts a diffractive action on a display light that is emitted from a display unit. A folding mirror is provided on the opposite side of the diffractive optical element from the display unit to reflect the display light. The diffractive optical element includes a transmissive action part and a diffractive and reflective action part. The transmissive action part exerts a transmissive action to transmit therethrough the display light, which is incident from the display unit and is in a first polarization state, toward the folding mirror. The diffractive and reflective action part exerts a diffractive and reflective action to diffract and reflect the display light, which is reflected by the folding mirror and is in a second polarization state opposite to the first polarization state, toward the projection portion on an optical path.
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Patent Agency Ranking
公开(公告)号：US20220365178A1
公开(公告)日：2022-11-17
申请号：US17814423
申请日：2022-07-22
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Teiyuu Kimura , Mitsuhiro Kiyono
Abstract: An optical detector includes a light emitting unit and a light receiving unit that receives a reflected light reflected by a measurement object. The light receiving unit has a detection element and a condenser lens system that collects the reflected light to the detection element. The condenser lens system has a plurality of lenses. The condenser lens system has a temperature change factor that increases the optical power at a high temperature than at a low temperature, and a chromatic aberration factor that decreases the optical power at a long wavelength than at a short wavelength. The optical power of each of the plurality of lenses is adjusted based on a correspondence between a change in temperature and a shift amount of the peak wavelength, so that the chromatic aberration factor balances with the temperature change factor within a predetermined wavelength range.
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公开(公告)号：US10391862B2
公开(公告)日：2019-08-27
申请号：US15535265
申请日：2015-12-11
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Hiroshi Ando , Takashi Takazawa , Makoto Sakai
Abstract: In a head-up display, a cover member includes a first transmissive member and a second transmissive member that transmit a light beam including an image generated by an image generation unit. The first transmissive member is formed to face upward from a front end to a rear end. Likewise, the second transmissive member is formed to face upward from a front end to a rear end. The rear end of the first transmissive member is offset to an upper side from the front end of the second transmissive member.
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公开(公告)号：US12055711B2
公开(公告)日：2024-08-06
申请号：US17524058
申请日：2021-11-11
Applicant: DENSO CORPORATION
Inventor： Hiroshi Andoh , Kazuhisa Onda , Yujiro Mizobuchi
CPC classification number: G02B27/0101 , G02B27/0944 , G02B27/0977 , G02B27/4205 , H04N9/3152
Abstract: A virtual image display device displays a virtual image by projecting a display light of an image toward a projection unit, and includes: a display unit configured to emit the display light; and a diffraction reflection element configured to reflect the display light emitted from the display unit by diffraction. The diffraction reflection element has a plate shape along a horizontal plane. The diffraction reflection element is configured to emit the display light toward the projection unit arranged above the diffraction reflection element when the display light is incident, and is set such that an angle of incidence on the diffraction reflection element is larger than an angle of emission from the diffraction reflection element.
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公开(公告)号：US11435582B2
公开(公告)日：2022-09-06
申请号：US16589458
申请日：2019-10-01
Applicant: DENSO CORPORATION
Inventor： Kazuhisa Onda , Hiroshi Ando
Abstract: First and second diffractive reflective elements form an optical path that guides a display light from a display unit toward a projection portion. The first diffractive reflective element is placed on the optical path to reflect the display light toward the projection portion by causing diffraction such that an incident angle and an emission angle of the display light are different from each other. The second diffractive reflective element is placed between the display unit and the first diffractive reflective element on the optical path to reflect the display light from the display unit toward the first diffractive reflective element by causing diffraction such that an incident angle and an emission angle of the display light are different from each other.
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公开(公告)号：US11333885B2
公开(公告)日：2022-05-17
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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