Headlamp, particularly of rectangular configuration, for use as

Details Headlamp, particularly of rectangular configuration, for use as Headlamp, particularly of rectangular configuration, for use as

1986-07-29

1987-09-29

Yeung, James C.

Illumination

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

Tie rod element controlled

362309, 362297, 362348, B60Q 100

Patent

active

046972250

ABSTRACT:
A low beam headlamp includes a reflector defining an optical axis and an incandescent filament forming a cylindrical coil whose central axis extends in a horizontal plane through the focal point and forms right angles with the optical axis. The light reflecting surface of the reflector is divided into six zones of which two lateral zones when viewed in the direction of the optical axis form together a paraboloid sector. The upper left hand wall portion and a lower right hand wall portion form together a second paraboloid sector whose central axis is inclined upwards relative to a central axis of the first paraboloid sector. An upper right hand wall portion and a lower left hand wall portion form together a composite paraboloid-ellipsoid sector whose sections taken in parallel vertical planes form parts of parabolas whereas sections taken in parallel horizontal planes form parts of ellipses. The projection of the resulting partial light beams provides a partially overlapping spot of concentrated light and two lateral flat partial beams.

REFERENCES:
patent: 4530042 (1985-07-01), Cible et al.

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