A projection device includes a display that emits a first linearly polarized light that oscillates in a reference oscillation direction, a transparent cover that blocks an opening of a housing, and that reflects the first linearly polarized light that is emitted by the display, and a half-wavelength plate that converts the first linearly polarized light entering from the transparent cover into a second linearly polarized light that oscillates in a direction orthogonal to the reference oscillation direction, and transmits the second linearly polarized light. The transparent cover includes a convex curved surface protruding toward an interior of the housing, and is structured to reflect the first linearly polarized light that is emitted by the display, toward the half-wavelength plate, and to transmit the second linearly polarized light from a reflection mirror toward a combiner.


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    Title :

    PROJECTION DEVICE AND VEHICLE DISPLAY DEVICE


    Contributors:

    Publication date :

    2019-08-22


    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



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