A virtual image display device 10 includes: a projection unit 12 that projects an image display light; an intermediate image formation unit 14 on which a real image based on the image display light is formed; and a projection mirror 16 that reflects the image display light output from the intermediate image formation unit 14 toward a virtual image presentation plane. The intermediate image formation unit 14 includes a principal surface 21 on which a first area W1, a second area W2, and a third area W3 are arranged in a stated order in a predetermined direction, and a reflective part 28, the first area W1 is provided with a transmission-type screen 31 on which a first display light that is a portion of the image display light forms an image, and the third area W3 is provided with a reflection-type screen 33 on which a second display light that is another portion of the image display light forms an image. The first display light is transmitted through the transmission-type screen 31, reflected by the reflective part 28, transmitted through the second area W2, and output toward the projection mirror 16, and the second display light is reflected by the reflection-type screen 33 and output toward the projection mirror 16.


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    Title :

    VIRTUAL IMAGE DISPLAY DEVICE, INTERMEDIARY IMAGE FORMATION UNIT, AND IMAGE DISPLAY LIGHT GENERATION UNIT


    Additional title:

    VIRTUELLE BILDANZEIGEVORRICHTUNG, INTERMEDIÄRE BILDERZEUGUNGSEINHEIT UND LICHTERZEUGUNGSEINHEIT EINER BILDANZEIGE
    DISPOSITIF D'AFFICHAGE D'IMAGE VIRTUELLE, UNITÉ DE FORMATION D'IMAGE INTERMÉDIAIRE ET UNITÉ DE GÉNÉRATION DE LUMIÈRE D'AFFICHAGE D'IMAGE


    Contributors:

    Publication date :

    2021-12-22


    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 / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen






    VIRTUAL IMAGE DISPLAY UNIT

    TOKI KIMIHIRO | European Patent Office | 2021

    Free access