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Story summary
- U.S. regulators approved adaptive driving beam headlights for American roads.
- Adaptive driving beam headlights have been used worldwide for about a decade.
- Sensors such as cameras, accelerometers, steering-wheel angle and GPS guide the headlights' illumination.
- The system creates precise LED patterns that illuminate farther while masking glare.
- Highway Administration data show half of traffic deaths occur after dark, though only a quarter of driving is at night.
