2026-08-27
ШИМ-мерцание и полосы камеры на LED-медиафасаде
ШИМ-мерцание и полосы камеры на LED-медиафасаде
План проверки сигнала и камеры перед съёмкой.
Разные эффекты
Visual flicker, stroboscopic effects, phantom arrays and camera banding are different outcomes. A stable appearance to the eye does not prove camera compatibility.
Расчёт ШИМ
T=1/f. Illustrative example: 2,000 Hz gives 0.5 ms; 25% duty gives 0.125 ms on-time. These are not product specifications.
Матрица камеры
Test actual camera modes, frame rates, exposures, low dimming levels, fades and mixed colors. Archive waveform data and raw clips.
Не утверждать
- Only an automatic phone video exists.
- Only PWM frequency is reported.
- Firmware changes without retest.
FAQ
Does higher PWM always remove bands?
No. Sensor readout, exposure and waveform also matter.
Is one camera test universal?
No. State camera and recording conditions.
Sources
Author: LikeLight Tom, Operations. Technical reviewer: 待确认.
