Lighting the Way
Better visibility and less glare: Matrix LED headlights use 218 spotlights to better illuminate even more of the road.
It’s not just a matter of bringing light to darkness.
At the heart of each headlight is a block of 84 light-emitting diodes, arranged in a grid structure with mathematical precision and known to engineers as a matrix. This constellation is surrounded by
What might sound like a contradiction is made possible by an intelligent control system whose core component is the matrix consisting of 84 LEDs. The 30 diodes in the lowest of the matrix’s three rows form the basis for the low beam. The middle row of 28 forms the synthetic curve light. This special
The control unit for the matrix LED headlights always takes into account the human factor, explains Dr. Sebastian Söhner, who is in charge of automatic headlight settings. “Drivers’ eyes are drawn to the brightest point in their field of vision, which is generally the headlights of an oncoming car. That can prevent them from seeing what is happening in places like the edges of their own lane. So matrix LED headlights not only suppress their glare for other drivers but also increase the intensity of light to the sides—for example toward the lane divider—in order to provide visual support for remaining on course.” The boost in power for the LEDs directed at the edges of the lane comes from the diodes that have been switched off. An adaptive thermal management system prevents overheating and extends the service life of the lights.
The new generation of headlights retains
By Hendrik Dieckmann
Illustration Rocket & Wink