Last update:

08/03/2005

  Headlamp technology

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  Polyellipsoid Headlamps
 

Benefits

bulletThe new polyellipsoid headlamps are more compact than conventional reflective headlamps.
bulletThe sharp focusing of the light and the elliptical shape of the reflector increase the range of vision and volume of light. This has effects at both short range and long range.
bulletThey also ensure even bright illumination of the road on bends.

Design
The design of the polyellipsoid headlamp is similar to that of a slide projector. It consists of a reflector, H1 bulb, aperture ("slide") and a converging lens.

An aperture inserted between the bulb and the lens produces a precisely defined light/dark boundary. The complex geometry of the reflector means that the light distribution is produced in the object plane and projected complete with the light/dark boundary onto the road. Thus, a diffusing lens is no longer required.

After refitting the rear dust cap (in the engine compartment) the headlamp can be switched from asymmetrical to symmetrical light via a lever. Therefore it is not necessary to put an adhesive tape on the headlamp when changing from left to right-hand drive traffic. (see Headlights)
 


Pre facelift headlamps with silver interior, later 98 models have a black interior

Component breakdown
of the headlamps





 

 

 

 

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