Valeo calls them "Les Lunettes" . Not yet widely available, despite being introduced around Jan 2016. The vehicle and the glasses need to be compatible.
https://www.motoring.com.au/ces-2016-wear-your-sunglasses-at-night-100836/
Quote:
...Through pulse-width modulation, Les Lunettes synchronise with your car’s LED or laser headlights. The glare from oncoming headlights is then reduced while the perceived lumen intensity of your own car’s headlights remains bright.
This PWM technology will reduce the intensity at night of any oncoming vehicle’s headlights, whether halogen, xenon, LED or laser...
A 2min video from Valeo:
https://www.youtube.com/watch?v=JeLw_q9P-hI
https://www.motoring.com.au/ces-2016-wear-your-sunglasses-at-night-100836/
Quote:
...Through pulse-width modulation, Les Lunettes synchronise with your car’s LED or laser headlights. The glare from oncoming headlights is then reduced while the perceived lumen intensity of your own car’s headlights remains bright.
This PWM technology will reduce the intensity at night of any oncoming vehicle’s headlights, whether halogen, xenon, LED or laser...
A 2min video from Valeo:
https://www.youtube.com/watch?v=JeLw_q9P-hI