Motor vehicle headlight with a transverse source capable of emitting a beam with a sharp cut-off
AssigneeValeo Vision
InventorBenoit Reiss
Life of this patent
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Abstract
A motor vehicle headlight comprises a light source having a given geometry, a mirror and a lens. The mirror co-operates with the source to generate a beam delimited by a cut-off at least part of which is horizontal. The source has the general shape of a cylinder having a horizontal axis perpendicular to an optical axis and a length less than the width of the mirror. At least one vertical section of the mirror has a profile such that a ray emitted tangentially by an edge of the source is reflected parallel to the optical axis and rays emitted by the rest of the source are reflected downwards relative to the optical axis. The mirror has at the height of the source a horizontal section adapted to assure a predetermined horizontal distribution of light.
Claims16
A motor vehicle headlight comprising a light source, a mirror and a lens, said mirror being adapted to co-operate with said source to produce a beam delimited by a cut-off, a part of which extends horizontally, wherein said source has the general shape of a cylinder having an axis that is essentially horizontal and perpendicular to an optical axis of said mirror and the length of the source along said axis is significantly less than the width of said mirror, said mirror having a surface divided into a plurality of substantially parallel vertical sections, at least one vertical section having a profile such that a light ray emitted tangentially by an edge of said source is reflected substantially parallel to said optical axis, and light rays emitted by the rest of said source being reflected with a downward inclination relative to said optical axis.
Dependencies are inferred from the claim text.