Originally Posted by
Erik Loza
Since I got Lasik in 2008, the “flare” of red LED car taillights looks like a tiny but distinct grid pattern. I just assumed that was from the surface the laser leaves on your cornea.
Erik
Many of the LED taillights are actually blinking at a high rate (multiplexing). When moving my eyes from side to side they leave trails.
Often the way they get brighter for braking is to go full on without the blinking.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)