Dimming method affects chromaticity of white LEDs

A study of dimming methods indicates that the lowest chromaticity shift among high-power white LEDs is observed for phosphor-converted LEDs dimmed using pulse-width modulation.

Content Dam Leds En Articles Print Volume 2 Issue 10 Features Dimming Method Affects Chromaticity Of White Leds Leftcolumn Article Thumbnailimage File

At the recent Solid State Lighting conference, Marc Dyble from the Lighting Research Center at Rensselaer Polytechnic Institute presented a paper on the extent to which the chromaticity of different high-power white LED systems is affected by the use of different dimming methods.

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