Patent ID: 6019491
Filing Date: 2000-02-01
Classification: F21S

Abstract:
A headlight for automobiles, in which a low beam filament and a high beam filament are installed in a poly-ellipsoid system, comprising:a poly-ellipsoid reflecting mirror, the low beam filament being installed at a first focus of the poly-ellipsoid reflecting mirror;a shade, located between a second focus of the poly-ellipsoid reflecting mirror and the poly-ellipsoid reflecting mirror, and under an optical axis of the poly-ellipsoid reflecting mirror;a lens, having a rear focus near an intersection of the shade and the optical axis;a high beam filament installed near the rear focus of the lens; anda reflector, having a focus near a center of the high beam filament, and near the rear focus of the lens;whereinthe shade blocks the light radiated from the low bean filament coming from under the optical axis;the high beam filament being arranged between the lens and the low beam filament along the optical axis of the poly-ellipsoid reflecting mirror;the low beam filament being arranged between the high beam filament and the poly-ellipsoid reflecting mirror along the same optical axis as the high beam filament; andthe poly-ellipsoid reflecting mirror and the reflector collect and diffuse light radiated from the low beam filament and the high beam filament.