Halogen headlamps

Halogen bulbs have been deployed in headlamps since the mid sixties. In comparison to their predecessor types, Halogen bulbs provide more light and last longer. They are used for all light functions at the front of the vehicle, such as low beam, high beam, fog lamps or position light.

Headlamp components, such as low beams or fog lamps, distribute light according to a pattern with a light/dark boundary. Below this boundary the widest possible field of vision is realized for the driver, while at the same time, the drievers approaching in the opposite direction are protected from excessive light. This area of reduced illumination is ensured using shield positioned around the bulb, or through the precise guidance of the light ray with the help of the reflector and, if necessary, other optical components. Depending on the particular headlamp design, either reflection systems (lamp and reflector) or projection systems (lamp and reflector and projection lens) are used for low and high beam functions.