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Bridgelux proposes metric relating LED output to natural light
LED manufacturer Bridgelux has announced a quality-of-light metric for white LEDs, or even solid-state lighting (SSL) end products, called Average Spectral Difference (ASD) that is intended to provide a simple way for product developers, lighting designers/specifiers, and other lighting professionals to easily understand how the output of an LED compares to so-called “natural light.” ASD is based on details in the spectral power distribution (SPD) of an LED and how that SPD compares with the SPD of a reference illuminant that’s considered representative of natural light. ASD is expressed as a percentage with 0% representing performance equivalent to the natural reference.
Bridgelux is a leading developer and manufacturer of lighting technologies and solutions that invites companies, industries and people to experience the power, possibility and financial potential of LED lighting.