New Photometric Standard Now in Public Review
NEW YORK – A draft standard that would change how we measure the output of LED luminaires is now posted for public review at PLASA’s website. The proposed new standard, BSR E1.48 – 201x, A Recommended Luminous Efficiency Function for Stage and Studio Luminaire Photometry, specifies a luminous efficiency function V(lambda) based on recent human eye response research.
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