WHY DO MY LED LIGHTS FLICKER FULL
PWM helps to regulate the full brightness at a range of voltages such on low idle. However the cause of both is the LED PWM intensity control used while braking, introduced by Cadillac around 2000. Once the eyes view the car directly while it is slowing down at night, they produce a stream of modulated streaks, which are stored in the retina. This accounts for the increased sensitivity of flicker on peripheral vision at night.Ģ) When the eyes move, the human vision is more accute to the flicker while they are in the peripheral. Rods are also more sensitive but active only at low ambient light levels. Rods, used for night vision, have a broader Field of View (FOV) from center than cones. This graph shows the eye distribution of Rods & Cones. Both conditions increase the human eye-brain sensitivity to flicker. The cause was a PWM rate was high enough to be unnoticed when direct viewing the rear end of a stationary car, but noticeble when the car is moving while braking and more so, from your peripheral vision. Let me address some general common issues ġ) Cadillac LED brake lights "were" notorious for causing eye flicker response. Why do we perceive it more as modulated streaks on center when the car is moving? (human optics).Why do we perceive it off center more as flicker (human optics).
There are at least three question/answers. Did you not mention what the flicker rate was? 30Hz? only on activation of brake lights?
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