Infrared headlight

The headlight has an infrared emitter, and an incandescent filament (12) arranged as a radiation source in an internal area of a lamp vessel. The filament has a filter body with a coated part having a filter layer, and an uncoated part. The parts are designed such that all of the radiation through the uncoated part essentially strikes a different area of a reflector than the infrared radiation that is transmitted through the layer. An independent claim is also included for a night-vision system with an infrared headlight.