A head-up display system of the present disclosure includes a display device that displays an image and a projection optical system that projects on the display member the image displayed on the display device. The projection optical system includes mirror MLthat reflects a light beam toward the display member and mirror ML-1that reflects the light beam toward mirror ML. Then, the projection optical system satisfies following condition (1):0.01LD is depth of mirror MLMLW is lateral dimension of mirror MLML-1Z is maximum sag amount of mirror ML-1ML-1W is lateral dimension of mirror ML-1.Such a configuration provides a head-up display system small in size that makes image distortion small in an entire viewpoint area of an observer.


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    Title :

    HEAD-UP DISPLAY SYSTEM, AND MOBILE OBJECT PROVIDED WITH HEAD-UP DISPLAY SYSTEM


    Additional title:

    HEAD-UP-ANZEIGESYSTEM UND MOBILES OBJEKT MIT EINEM HEAD-UP-ANZEIGESYSTEM
    SYSTÈME D'AFFICHAGE TÊTE HAUTE, ET OBJET MOBILE ÉQUIPÉ DU SYSTÈME D'AFFICHAGE TÊTE HAUTE


    Contributors:

    Publication date :

    2020-02-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



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