A light guide unit has a cold mirror unit to guide display light toward a projection window. In an XYZ color system, a wavelength region between a wavelength at which a value of a color matching function Z is maximum and a wavelength at which a value of the color matching function Y is maximum is a first wavelength region, and a wavelength region between a wavelength at which a value of a color matching function Y is maximum and a wavelength at which a value of a color matching function X is maximum is a second wavelength region. A minimum reflectance of the cold mirror unit to the display light takes a minimum value among reflectances of the respective wavelengths in a corresponding wavelength region. The minimum reflectance in the second wavelength region is larger than the minimum reflectance in the first wavelength region.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    HEAD-UP DISPLAY DEVICE AND COLD MIRROR


    Beteiligte:
    YOKOE JUNYA (Autor:in) / NAMBARA TAKAHIRO (Autor:in)

    Erscheinungsdatum :

    25.07.2019


    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 cold mirror

    YOKOE JUNYA / NAMBARA TAKAHIRO | Europäisches Patentamt | 2020

    Freier Zugriff

    HEAD-UP DISPLAY DEVICE AND COLD MIRROR

    YOKOE JUNYA / NAMBARA TAKAHIRO | Europäisches Patentamt | 2017

    Freier Zugriff

    COLD MIRROR OF HEAD-UP DISPLAY DEVICE, AND HEAD-UP DISPLAY DEVICE

    SUGIKAWA TOMOHIKO | Europäisches Patentamt | 2017

    Freier Zugriff

    MIRROR HOLDER, MIRROR UNIT, AND HEAD-UP DISPLAY DEVICE

    YAMAOKA MAMORU / KASUGA TAKAFUMI | Europäisches Patentamt | 2021

    Freier Zugriff

    MIRROR HOLDER, MIRROR UNIT, AND HEAD-UP DISPLAY DEVICE

    OGINO KYOHEI | Europäisches Patentamt | 2019

    Freier Zugriff