That's just an illustration of how adaptive beam headlights provide the best visibility around corners:
Adaptive headlights might not technically be able to see around corners, but they're pretty much the next best thing. The basic idea is that traditional headlights always illuminate the road directly in front of a car, which means that they end up shining a light on the shoulder, or into oncoming traffic, whenever the car isn't moving forward in a perfectly straight line. Adaptive headlights are capable of actually rotating with the vehicle, which effectively lights up more the road surface that you actually need to see.
There are a number of different adaptive headlight technologies, but they are all designed to improve the driver’s sight distance at night. Most adaptive headlight systems improve sight distance in corners, but some are also capable of adjusting in response to weather conditions, the presence of other vehicles, and other factors. Various new headlight technologies, including a number of systems similar to modern adaptive headlights, have been implemented throughout the entire history of the automobile, but a resurgence of interest in the technology has occurred in recent years.
