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I don't have a car with LED bulb so I can't check, but I wonder how would one bulb works when normal and high beams have different beam pattern. One might be ab
by wolpoli 4y ago
I don't have a car with LED bulb so I can't check, but I wonder how would one bulb works when normal and high beams have different beam pattern. One might be able to accomplish that with one LED bulb if it switches on/off certain LEDs in the module or the bulb is movable, but then no PWM is required.
- rootusrootus 4y agoA typical pre-LED solution is a projector and a mechanical plate that moves (very quickly) to block or unblock the part of the light that makes up the high beam coverage. LEDs can be done similarly, but an LED matrix headlight just controls which rows of LEDs are lit up (e.g. the Samsung PixCell light that Tesla uses on the Model 3/Y). This is where we'll maybe see adaptive headlights, too, though in the case of Tesla I don't believe they've ever been used anywhere in the world, legal or not. Just to write "TESLA" on the wall when you do the Light Show.