IES LM-80-20 Approved Method: Measuring Luminous Flux and Color Maintenance of LED Packages, Arrays, and Modules

Jeff Hulett, Anton Belyaev, Carl Bloomfield , Eric Bretschneider , Aaron Feldman , K. C. Fletcher, Yuya Harada, Jiao Jianzhong, Mihaly Kotrebai , Kurt Liepmann, Jeffrey Lockner, Cameron Miller, Yoshi Ohno , Emil Radkov, Anders Thorseth, Ralph Tuttle, Yuqin Zong

Research output: Book/ReportReportCommunication

Abstract

This Approved Method provides the methods for measurement of luminous flux and color maintenance for LED packages, arrays, and modules. It covers luminous, radiant, or photon flux maintenance and color maintenance, including changes in chromaticity coordinates, peak wavelength, or centroid wavelength versus time. The maintenance characteristics are measured under controlled conditions that allow direct comparison of results obtained at different laboratories.
This Approved Method does not provide guidance or make any recommendations regarding predictive estimations or extrapolation for the maintenance characteristics beyond the duration of the actual measurements.
Original languageEnglish
PublisherIlluminating Engineering Society
Number of pages23
ISBN (Print)9780879952143
Publication statusPublished - 2020

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