The embodiment of the invention provides a projection lens, a vehicle-mounted HUD and a vehicle. The projection lens comprises a front lens group, a rear lens group and a diaphragm from an object side to an image side along the same optical axis. The diaphragm is positioned between the front lens group and the rear lens group; the front lens group comprises a first lens group and a second lens group, the first lens group comprises a first lens, the second lens group comprises a second lens, the second lens is located between the first lens and the diaphragm, the rear lens group comprises a balsaming lens, and the balsaming lens comprises at least two lenses; the focal power of the first lens is negative, and when light emitted by the first lens enters the second lens, the height of the light is increased. The projection lens provided by the embodiment of the invention has good lens performance.

    本申请实施例提供了一种投影镜头、车载HUD以及车辆;所述投影镜头由物方至像方沿同一光轴包括前透镜组、后透镜组以及光阑;所述光阑位于所述前透镜组与所述后透镜组之间;所述前透镜组包括第一镜组和第二镜组,所述第一镜组包括第一透镜,所述第二镜组包括第二透镜,所述第二透镜位于所述第一透镜和所述光阑之间,所述后透镜组包括一胶合透镜,所述胶合透镜至少包括两片透镜;所述第一透镜的光焦度为负,经所述第一透镜出射的光线在射入所述第二透镜时,光线的高度抬升。本申请实施例的投影镜头具有良好的镜头性能。


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    Titel :

    Projection lens, vehicle-mounted HUD and vehicle


    Weitere Titelangaben:

    投影镜头、车载HUD以及车辆


    Beteiligte:
    ZHANG TINGRUI (Autor:in) / DAN KUN (Autor:in) / ZHENG XIAO (Autor:in)

    Erscheinungsdatum :

    01.09.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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