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    HEAD-UP DISPLAY AND MOBILE BODY EQUIPPED WITH HEAD-UP DISPLAY
    41.
    发明申请
    HEAD-UP DISPLAY AND MOBILE BODY EQUIPPED WITH HEAD-UP DISPLAY 有权

    公开(公告)号：US20210018750A1

    公开(公告)日：2021-01-21

    申请号：US17060706

    申请日：2020-10-01

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Satoshi KUZUHARA ,  Hiroaki OKAYAMA

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

    Abstract: A head-up display includes a display device and a projection optical system; the projection optical system includes first and second optical elements arranged in order of an optical path from the image; and when optical paths corresponding to an upper end and a lower end of the virtual image are defined as an upper ray and a lower ray, respectively, and a diverging effect and a converging effect are defined as being negative and positive, respectively, the first and the second optical elements satisfy conditional expressions P_u1−P_l1 0 (where P_u1 denotes a local power of the first optical element acting on the upper ray, P_l1 denotes a local power of the first optical element acting on the lower ray, P_u2 denotes a local power of the second optical element acting on the upper ray, P_l2 denotes a local power of the second optical element acting on the lower ray).

    DISPLAY DEVICE
    42.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200004015A1

    公开(公告)日：2020-01-02

    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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