Patent ID: 8172442
Filing Date: 2012-05-08
Classification: B60Q,H01K

Abstract:
1. A vehicle headlamp including a daytime running lamp configuration, comprising: a parabolic type reflector having a focus and a substantially symmetrical axis, and the parabolic type reflector including an upper portion and an under portion; a halogen bulb including a first filament having a rated power of substantially 55 watts, a second filament having a rated power of substantially 60 watts and a shield member and located on the substantially symmetrical axis of the reflector, the first filament located substantially at the focus of the reflector, the second filament located at a position closer to the reflector than the first filament, and the shield member located adjacent the first filament so as to block at least a portion of light emitted from the first filament in a downward direction; and a driving circuit electrically connected to both the first filament and the second filament and configured to supply each of the first filament and the second filament with a respective driving voltage for light-emission and configured to supply the second filament having a rated power of substantially 60 watts with voltage that is lower than a battery voltage while generating a halogen cycle in the halogen bulb when the second filament is used as a daytime running lamp, wherein light emitted from the second filament having a rated power of substantially 60 watts is configured for use as the daytime running lamp by using the upper portion and the under portion of the parabolic type reflector, and light emitted from the first filament having a rated power of substantially 55 watts is configured for use as at least one of a fog lamp, a driving lamp and a low beam headlight.