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    Head-up display and moving body equipped with head-up display
    12.
    发明授权
    Head-up display and moving body equipped with head-up display 有权

    公开(公告)号：US10025097B2

    公开(公告)日：2018-07-17

    申请号：US15704454

    申请日：2017-09-14

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Satoshi Kuzuhara ,  Hiroaki Okayama

    IPC: G02B27/01 ,  B60K35/00 ,  B60K37/02 ,  G09G5/00 ,  G02B27/14

    Abstract: Head-up display, which is mounted on a vehicle, performs projection on a transparent reflective member, and allows an observer to visually recognize a virtual image, includes display device that displays an image, and a projection optical system that has refractive optical system and projects displayed image displayed by display device on eye box of the observer. As an angle formed between a vector of a light beam that is incident on refractive optical system and a vector of an output light beam, the angle is greater at a light beam on an image end passing through a vehicle inner side of refractive optical system than at a light beam on an image end passing through a vehicle outer side of refractive optical system.

    Optical system
    14.
    发明授权
    Optical system 有权

    公开(公告)号：US12189103B2

    公开(公告)日：2025-01-07

    申请号：US17405723

    申请日：2021-08-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Satoshi Kuzuhara ,  Tsuneo Uchida

    IPC: G02B17/08 ,  A61B3/10 ,  G02B26/10

    Abstract: The present disclosure provides an optical system that includes a prism having an incident surface, an exit surface, and one or more reflecting surfaces. The optical system includes a first scanning element configured to scan in a first direction a light that enters and reflect the light in a direction of the incident surface of the prism, and a second scanning element configured to scan in a second direction the light that exits from the exit surface of the prism, the second direction being orthogonal to the first direction. The incident surface of the prism has a convex shape with respect to the first scanning element.

    Optical system
    15.
    发明授权
    Optical system 有权

    公开(公告)号：US12007557B2

    公开(公告)日：2024-06-11

    申请号：US17398135

    申请日：2021-08-10

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Satoshi Kuzuhara ,  Tsuneo Uchida

    IPC: G02B26/08 ,  G02B26/10 ,  G02B27/00 ,  G02B5/04

    CPC classification number: G02B26/108 ,  G02B26/101 ,  G02B27/0081 ,  G02B5/04

    Abstract: The present disclosure provides an optical system that includes a prism having an incident surface, an exit surface, and one or more reflecting surfaces. The optical system includes a first scanning element configured to scan a light that enters and has a plurality of wavelengths in a first direction, and reflect the light in a direction of the incident surface of the prism. The optical system includes a second scanning element configured to scan in a second direction the light that exits from the exit surface of the prism, the second direction being orthogonal to the first direction. The incident surface of the prism has a concave shape with respect to the first scanning element.

    Head-up display and mobile body equipped with head-up display
    16.
    发明授权
    Head-up display and mobile body equipped with head-up display 有权

    公开(公告)号：US11428928B2

    公开(公告)日：2022-08-30

    申请号：US16998378

    申请日：2020-08-20

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Satoshi Kuzuhara ,  Hiroaki Okayama

    IPC: G02B27/00 ,  B60K35/00 ,  G02B27/01

    Abstract: A head-up display of the present disclosure projects a display image on a transparent reflecting member. The head-up display includes: a display device that displays the display image; and a projection optical system that projects the display image displayed on the display device. On an assumption that light reaching a center of a viewpoint region of the observer and corresponding to a center of the virtual image is reference light, the projection optical system includes a prism element that has an incident surface, a reflection surface, and an emitting surface different from the incident surface sequentially in an optical path from the display device. The emitting surface is inclined to the reference light. An inclination amount θ2 of the reference light emitted from the emitting surface with respect to the emitting surface lies in a range of 15°

    Head-up display
    17.
    发明授权
    Head-up display 有权

    公开(公告)号：US11415800B2

    公开(公告)日：2022-08-16

    申请号：US17128417

    申请日：2020-12-21

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Satoshi Kuzuhara ,  Hiroaki Okayama

    IPC: G02B27/01 ,  B60K35/00 ,  G02B13/18 ,  G02B17/08

    Abstract: A head-up display for displaying an image as a virtual image to an observer includes a projection optical system that includes a lens element and a reflecting mirror. A light beam reaching a center of a viewpoint region of the observer and corresponding to a center of the virtual image is defined as a reference light beam. The lens element is inclined with respect to the reference light beam. The lens element includes an entrance surface on which light of the image is incident, an exit surface from which light of the image emerges, a first edge portion, and a second edge portion. The second edge portion is inclined so that, when light emitted from the image travels through the entrance surface, the second edge portion, and the exit surface in this order, light emerging from the exit surface reaches below a central portion of the reflecting mirror.

    Display device
    19.
    发明授权
    Display device 有权

    公开(公告)号：US10591725B2

    公开(公告)日：2020-03-17

    申请号：US16570203

    申请日：2019-09-13

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Ken'ichi Kasazumi ,  Toshiya Mori ,  Hiroaki Okayama ,  Satoshi Kuzuhara ,  Hiroyuki Furuya ,  Hiroshi Gotou ,  Akira Kurozuka

    IPC: G02B27/01 ,  B60K35/00 ,  G02B26/10

    Abstract: A display device is provided and may include a light source that emits a light beam, a scanner that causes the light beam to scan, a movable screen in which an image is formed by transmitting the light beam from scanner, an optical system configured to project the image on a display medium, and a driver configured to cause the movable screen to reciprocate in moving directions. The image includes a first image and a second image. The movable screen reciprocates in a posture inclined with respect to the moving directions such that a second end of the movable screen is positioned closer to the scanner than a first end of the movable screen. The scanner forms the second image in the movable screen while the movable screen moves such that a forming direction of the second image is inclined with respect to a direction approaching the scanner.

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