ANISOTROPIC INCANDESCENT LIGHT SOURCE

摘要

PURPOSE: An anisotropic incandescent light source is provided to use a filament structure for a tungsten halogen headlamp in a vehicle. CONSTITUTION: An illuminating system includes an anisotropic filament coil(210) and an anisotropic reflector assembly(204). The filament coil includes the coil of an electro-conductive wire having a longitudinal axis. The reflector assembly has a main axis. The longitudinal axis of the coil is actually aligned with the main axis of the reflector assembly. The filament coil emits a light flux to the reflector assembly, and the light flux is rotatably anisotropic.