Dipped headlight providing an offset bright spot without using a

Details Dipped headlight providing an offset bright spot without using a Dipped headlight providing an offset bright spot without using a

1987-05-22

1988-06-28

Lazarus, Ira S.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 80, 362308, 362309, 362346, B60Q 104

Patent

active

047543744

ABSTRACT:
A dipped headlight for a motor vehicle, capable of generating a dipped beam situated beneath a generally horizontal cutoff, the headlight being of the type comprising a lamp having an axial filament (100) emitting light freely in all directions thereabout, a reflector (200) having an axis (Ox) extending beneath the axis of the filament and parallel thereto, said reflector also including a surface without discontinuity, and said headlight further including a closure glass placed in front of the reflector and suitable for spreading said beam in a horizontal direction, said headlight including the improvement whereby the reflector includes two diametrically opposite first quadrants (201, 202) whose surfaces are at least approximately two portions of paraboloids having focuses situated in the vicinity of respective axial ends of the filament in order to generate filament images which provide light concentration situated beneath the cutoff and offset sideways relative to the headlight axis, with the other two quadrants (203, 204) being constituted by surfaces providing smooth and continuous transitions between said first two quadrants and creating filament images which are situated for the most part below the cutoff.

REFERENCES:
patent: 4494176 (1985-01-01), Sands et al.
patent: 4506315 (1985-03-01), Maekawa et al.
patent: 4530042 (1985-07-01), Cibie et al.
patent: 4607318 (1986-08-01), Lindae et al.

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