Abstract: A fog lamp is provided with a light source bulb having a filament as a light source for emitting light, and a secondary light source formed by reflection and collection of the light from the filament; and a reflector having a reflection surface that irradiates the light from the light source bulb forward. The reflection surface of the reflector is constructed so as to irradiate the light from the secondary light source downward of the predetermined cut-off line.

Abstract: Front viewability during turning may be enhanced by a headlamp device for a vehicle arranged to perform swivel control The headlamp device is arranged so that when a vehicle 2 is turning around a right curve with low beam, the vehicle velocity V and the estimated horizontal G value are used to calculate the curve turning radius R, which is then used together with the vehicle velocity R to calculate the driver viewing point angle ? to which the leftward deviation ? of the highest light intensity position in the light distribution pattern PL for low beam is added to calculate the target swivel angle ? on the basis of which the lighting fixture unit of the headlamp 10R is swung over the target swivel angle ? so that light beam is emitted toward a region surrounding the driver viewing point EP on the road ahead of the vehicle in the forward direction.