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Title: Inter-Laboratory Comparison of Luminous Intensity Distribution and Total Luminous Flux Measurements with Far Field and Near Field Goniophotometry
Authors: Acuna, Paula
Quintero, Jesús
Losada, Daniel
Leloup, Frédéric
Hanselaer, Peter
Issue Date: 7-Dec-2014
Publisher: Instituto de Energia e Ambiente - Universidad de Sao Paulo
Host Document: Proceedings of the 12th Pan American Conference on Lighting issue:12 edition:1 pages:127-131
Conference: Pan American Conference on Lighting edition:12 location:Juiz de Fora, Brazil date:7-10 December 2014
Article number: 18-58
Abstract: In order to be recognized as a competent testing and
calibration laboratory, metrology laboratories who aim to obtain
an accreditation for specific tests need to fulfill a number of
general requirements as stipulated in the International Standard
ISO/IEC17025. One way to assure the quality of testing is to
participate in proficiency testing programs or to conduct interlaboratory
comparisons. In this paper, luminous intensity
distribution measurements of three LED lamps, performed in
two metrology laboratories according to the CIE and IESNA
standard guidelines, are presented and compared. Significant
differences are found for LID results of a directional lamp, due to
high-dynamic range issues being observed in the near-field
goniophotometer. It is also detected that the correlated color
temperature influences the illuminance measurement of the
photometer in the goniophotometer.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
Electrical Engineering (ESAT) TC, Technology Campuses Ghent and Aalst
Technologiecluster ESAT Elektrotechnische Engineering

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