The invention provides a projection lens for a vehicle. The projection lens comprises a first lens, a second lens and an aperture which are sequentially arranged from the magnification side to the reduction side of the projection lens for the vehicle. The projection lens for the vehicle is substantially composed of a first lens, a second lens and other two lenses with diopters. The first lens has positive diopter. The aperture is provided on the magnification side of the second lens. One of the two lenses is made of glass, and the other lens is made of non-glass. One of the two lenses is an aspheric lens. The invention also provides a vehicle projector.
本发明提供一种车用投影镜头,包括自车用投影镜头的放大侧到缩小侧依序排列的第一透镜与第二透镜以及光圈。车用投影镜头实质由第一透镜与第二透镜等二片具有屈光度透镜所组成。第一透镜具有正屈光度。光圈设于第二透镜的放大侧。二片透镜中,一者的材质为玻璃,另一者的材质为非玻璃。且二片透镜中,一者为非球面透镜。亦提供一种车用投影机。
Projection lens for vehicle and projector for vehicle
车用投影镜头及车用投影机
2023-06-20
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien |
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