PWM-Flimmern und Kamerastreifen an LED-Medienfassaden

Prüfplan für Wellenform und Kamera vor dem Dreh.

Unterschiedliche Effekte

Visual flicker, stroboscopic effects, phantom arrays and camera banding are different outcomes. A stable appearance to the eye does not prove camera compatibility.

PWM Berechnung

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.

Kameramatrix

Test actual camera modes, frame rates, exposures, low dimming levels, fades and mixed colors. Archive waveform data and raw clips.

Nicht freigeben

• 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

1. CIE TN 012
2. CIE TN 006
3. IEEE 1789
4. Sony camera guidance
5. LIKELIGHT

Author: LikeLight Tom, Operations. Technical reviewer: 待确认.