Head-lamp for dipped beam

摘要

The headlamp has the vertical- and horizontal ellipses with a common near focus on the filament and with the outer focus on the aperture. The lamp is covered by a lens and the intermediate planes have their near focus on the filament and their outer focus between the aperture and the lens. The headlamp can have an oval- or rectangular shape and the lamp can be set behind an outer glass cover. The profile of the reflector fits into a series of cone frustrums.