| 摘要 |
A motor vehicle headlight of comprising a reflector, at least partly substantially in the form of an ellipsoid with a symmetry axis determined by the intersection of a first vertical plane and a first horizontal plane. The refractor is a useful portion of a spherical plano-convex lens having its optical axis merged with the symmetry axis, has a focus substantially merged with a second focus of the reflector, has a contour which has a barycentre offset by a predetermined distance with respect to the optical centre of the lens, and in that the second light flux passing through the useful portion is equal to a predetermined proportion of the first flux.
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