The marking light function is also used in conjunction with the optional night vision assist. In addition, the orientation light uses darkened areas masked out from the light beam to predictively show the vehicle’s position in the lane, thereby supporting-especially on narrow roads or in highway construction zones-the safe lane centering assist. In this way, it improves the driver’s awareness of the relevant lane and contributes to improved road safety. On freeways, the lane light creates a carpet of light that illuminates the driver’s own lane brightly and adjusts dynamically when he or she changes lane. Above all, however, it offers innovative functions such as lane light and orientation light.

Not only does the digital light system deliver cornering, city, and highway lighting as versions of the low-beam light with exceptional precision, it also supplements the high-beam light by masking out other road users with even greater accuracy. This presentation transforms the area in front of the car into a carefully illuminated stage. It can generate dynamic leaving- and coming-home animations that appear as projections on a wall or on the ground. In the Audi e-tron Sportback, the digital light that will expand the offering in mid-2020, performs multiple tasks. Depending on the setting, the LED light is either directed via the lenses onto the road or is absorbed in order to mask out areas of the light beam. With the help of electrostatic fields, each individual micromirror can be tilted up to 5,000 times per second. At its heart is a small chip containing one million micromirrors, each of whose edge length measures just a few hundredths of a millimeter.

The design is based on a technology abbreviated as DMD (digital micromirror device) and is also used in many video projectors. With the digital matrix LED headlights as top-of-the range equipment, Audi presents a worldwide first in a production vehicle: Broken down into minute pixels, their light can illuminate the road in high resolution.

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