No compromises
The light sources of a SparkShelf can be smoothly dimmed from 0-100% with zero flicker.
With over a decade of experience, the Ambright team has been engineering drivers and luminaires for medical devices. In magnetic resonance imaging (MRI), even the slightest flicker can disrupt the measurement of atomic nuclei spin in a highly magnetic alternating field. This expertise ensures our products deliver unparalleled performance and reliability. We know exactly what we're doing.
Flicker at 50% dimmed brightness
PstLM / short-term Light Modulation |
0,0219 |
SVM / Stroboscopic Effect Visibility Measure |
0,0009 |
Background
The threshold for PstLM has been set by IEC/EN 61000-3-3 as of September 1, 2021 at ≤ 1.0, and the SVM ≤ 0.4. These values represent the visibility thresholds of test subjects focusing on the evaluation of the stroboscopic effect under laboratory conditions. With the new Ecodesign Directive, the two flicker parameters for assessing short-term perceptibility may thus not exceed a PstLM value of 1.0 and the stroboscopic effect parameter may not exceed an SVM value of 0.4.