An image displayed on an image display unit (12) is illuminated by an image illuminating unit (100), and using a display optical system (2, 14, 16) having at least one concave mirror element (16), the image is displayed to the driver as a virtual image. The illuminating unit (100) is equipped with a light-emitting surface (104b) for emitting light for illumination purposes, and a lens array (102) for splitting and focusing the entrance pupil (6) of the display optical system (2, 14, 16) of the eyebox (5) onto the light-emitting surface (104b). In so doing, the light-emitting surface (104b) and the eyebox (5) have a coupled relationship through the agency of the lens array (102) and the display optical system (2, 14, 16), whereby light emitted towards the lens array (102) from the light-emitting surface (104b) can efficiently reach the eyebox (5). As a result, the light can be used efficiently for illumination purposes, thus making possible virtual display of high-luminance images, with the need to increase the luminance of the light source, or decrease the number of displayable colors.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Head-up display device, and illuminating device employed in head-up display device


    Beteiligte:

    Erscheinungsdatum :

    2016-02-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES




    HEAD-UP DISPLAY DEVICE, AND ILLUMINATING DEVICE EMPLOYED IN HEAD-UP DISPLAY DEVICE

    NAMBARA TAKAHIRO | Europäisches Patentamt | 2016

    Freier Zugriff

    Head-up display device and illuminating device for head-up display device

    NAMBARA TAKAHIRO | Europäisches Patentamt | 2017

    Freier Zugriff

    HEAD-UP DISPLAY, ILLUMINATING DEVICE AND VEHICLE EQUIPPED WITH THE SAME

    ASAI YOSUKE | Europäisches Patentamt | 2018

    Freier Zugriff

    DISPLAY DEVICE, HEAD-UP DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY DEVICE

    NAKAMURA AKIHIRO / HASHIMURA JUNJI / YAMADA NORIHIDE | Europäisches Patentamt | 2020

    Freier Zugriff