Patent ID: 7670037

Claim:
A bending beam vehicle headlamp with a multi-filament bulb comprising: a reflector having a reflective surface, the reflective surface providing a headlamp beam pattern from a main light source; a lamp bulb having a horizontally extending axis directed to a field to be illuminated, and a light transmissive wall defining an enclosed volume and enclosing a first filament, a second filament, and a third filament the lamp bulb positioned relative to the reflector so the first filament is positioned relative to the reflector to direct light centered on an axis as a main beam and; the second filament displaced to a side of the first filament, and positioned relative to the reflector to direct light, by means of the reflector, centered to a horizontal side of the light projected by the reflector from the first filament; the third filament horizontally displaced to a side of the first filament, and positioned relative to the reflector to direct light, by means of the reflector, centered to a horizontal side of the light projected by the first filament; electrical connections sealed through the wall and joined respectively to the first, the second and the third filaments to selectively power the respective first filament, the second filament and the third filament, and a control system responding to a vehicle turning signal to provide power to the second filament for a first turning condition and to provide power to the third filament for a second turning condition.