An automobile projector headlamp design with a new anamorphic elliptical reflector and aspherical lens is proposed in this paper. An adopted aspherical model with the fourth-order cross-section equation designs the thick projection lens for good focusing results. A proposed anamorphic elliptical reflector surface with axial lengths varying with the rotating angle can control the light pattern in a simpler and more efficient way. A flat screen is applied to avoid manufacturing difficulties. The whole system in the low-beam concrete design example shows a horizontally wide and vertically narrow light pattern that sufficiently meets the ECE R112 regulations.
An anamorphic automobile headlamp design
Konstruktion eines anamorphotischen Kraftfahrzeugscheinwerfers
2008
12 Seiten, 18 Quellen
Article (Journal)
English
An anamorphic automobile headlamp design
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