2026-08-27

Scintillement PWM et bandes caméra sur façade LED

Scintillement PWM et bandes caméra sur façade LED

Scintillement PWM et bandes caméra sur façade LED

Plan de test de la forme d onde et de la caméra avant tournage.

Effets distincts

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

Calcul PWM

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.

Matrice caméra

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

Ne pas valider

  • 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.