Here particularly interested in car headlights. I am noticing as I age my eyes do not adjust as quickly to nighttime driving as they used to.
My automobiles today utilize Xenon which does work for me. Over the last few months have replaced some of the interior lighting with plates of warm LED lighting which works. It is brighter and turns the interior space to daylight. When it shuts off (dimming slowly) I do not notice any LED flickering.
I have noticed though that the side glare from the new interior lighting if on really bugs me at night.
IE: wife turned one lamp on one night while driving and I told her politely to shut it off as the light irritated me.
So a quickie clip and paste here.
We’ll start by looking at automotive headlights, which have used light sources through the years ranging from acetylene and oil, to incandescent lamps, Xenon high-intensity discharge lamps, and LEDs. Certainly automotive headlights have evolved through the years but why now lasers?
I have spoken with BMW and Audi, and they say they can get a brighter light intensity from lasers that can be tighter focused. BMW claims that the light it can get from lasers more than doubles the range they can get from LEDs. In addition, the laser die is 100 times smaller than with an LED, which in turns gives car designers more flexibility including installing the laser module a distance from the actual headlight window and feeding the light via fiber cable.
One benefit that laser headlights don’t bring to automotive headlights is cost. I’m told that laser headlights are at least twice the cost of LED headlights, and can be considerably more than that. The BMW i8 was the first car which offered laser headlights as an option. The car lists for $135,925 and that is without the laser headlight option which adds another $10,500 to the price.
BMW has utilized fiber optics since the late 1990s for the headlamp angel eyes - thinking it started with the 5 series back then.