A projection assembly for a head-up display (HUD), includes a windshield with an HUD region, inner and outer panes joined via a thermoplastic intermediate layer, and a projector directed at the HUD region having a radiation predominantly p-polarized. The windshield has a reflection coating for reflecting p-polarized radiation. The reflection coating has exactly one electrically conductive layer based on silver. A lower dielectric layer or layer sequence with a refractive index of at least 1.9 is arranged below the electrically conductive layer. An upper dielectric layer or layer sequence with a refractive index of at least 1.9 is arranged above the electrically conductive layer. The ratio of the optical thickness of the upper dielectric layer or layer sequence to the optical thickness of the lower dielectric layer or layer sequence is between 2.10 and 3.20. The reflection coating includes no dielectric layers with a refractive index less than 1.9.


    Access

    Download


    Export, share and cite



    Title :

    PROJECTION ASSEMBLY FOR A HEAD-UP DISPLAY (HUD) WITH P-POLARIZED RADIATION


    Contributors:

    Publication date :

    2023-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



    PROJECTION DEVICE FOR HEAD-UP DISPLAY (HUD) WITH P-POLARIZED RADIATION

    SCHMADEK LOTHAR / GILLETSON SCOTT / DO ROSARIO JEFFERSON et al. | European Patent Office | 2022

    Free access

    PROJECTION DEVICE WITH P-POLARIZED RADIATION FOR HEAD-UP DISPLAY (HUD)

    SCHMADEK LOTHAR / GILLETSON SCOTT / DO ROSARIO JEFFERSON et al. | European Patent Office | 2022

    Free access

    PROJECTION DEVICE WITH P-POLARIZED RADIATION FOR HEAD-UP DISPLAY (HUD)

    SCHMADEK LOTHAR / HAGEN JAN / DO ROSARIO JEFFERSON et al. | European Patent Office | 2022

    Free access

    Projection assembly for a head-up display (HUD) with p-polarised radiation

    FISCHER KLAUS / HAGEN JAN | European Patent Office | 2024

    Free access

    PROJECTION MEMBER, HEAD-UP DISPLAY DEVICE, AND POLARIZED SUNGLASS

    NAMBARA TAKAHIRO | European Patent Office | 2015

    Free access