Motor vehicle main beam headlamp incorporating an elliptical ref

Details Motor vehicle main beam headlamp incorporating an elliptical ref Motor vehicle main beam headlamp incorporating an elliptical ref

1986-04-17

1987-07-14

Scott, Samuel

Illumination

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

Tie rod element controlled

362298, 362346, B60Q 104

Patent

active

046806792

ABSTRACT:
A headlamp of the type comprising: a light source (10); a two-focus elliptical reflector (20) having a base focus (F.sub.1) and a front focus (F.sub.2), said base focus being disposed in the vicinity of said light source and close to the base of the reflector, and said front focus being disposed in front of said base focus; and a parabolic reflector (30) having its focus (F.sub.2) in the vicinity of said front focus of said elliptical reflector. The base of the elliptical reflector is provided with an opening for directly passing light from said light source, and a first sector (40) of a parabolic type reflector is provided with its focus in the vicinity of said light source and is disposed to reflect such light after passing through said opening along the vehicle axis direction (31, 41) to increase the on-axis main beam light intensity.

REFERENCES:
patent: 1981328 (1934-11-01), Rivier
patent: 4333130 (1982-06-01), Mochizuki et al.
patent: 4456948 (1984-06-01), Brun

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