Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1989-06-14
1990-07-24
Hart, Douglas
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362303, 362305, 362308, 362328, 362346, B60Q 100
Patent
active
049438948
ABSTRACT:
The projector-type head lamp for vehicles comprises a reflector having an optical axis, a lamp bulb operable as a light source, having a filament horizontally disposed in a direction perpendicular to the optical axis, and a convex lens disposed in an area defined by the light beam shaped by the rays of light reflected by the reflector and having an optical axis nearly coincident with the optical axis of the reflector. The inner reflecting surface of the reflector has a main reflecting area including a part of a spheroid having the first focus near the center of the filament as light source and the second focus near the center of the cut-off edge, at least parts of the main reflecting area located above or below the horizontal plane in which the optical axis lies and which define multiple largely slanted filament images on the screen being formed as sub reflecting areas having such reflecting characteristics as to shift the filament images horizontally. This projector-type head lamp provides a horizontally elongated light distribution pattern of which the profile line is nearly horizontal on the side nearest the vehicle and which contributes to the effective illumination.
REFERENCES:
patent: 4772987 (1988-09-01), Kretschmer
patent: 4800467 (1989-01-01), Lindae
patent: 4825343 (1989-04-01), Nakata
Hart Douglas
Ichikoh Industries Ltd.
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