Upcoming Event

Evaluating Light Source Color
Quality using IES TM-30-15

Presented by: Kevin Houser, Professor of Architectural
Engineering at Penn State


Light source spectrum is one component of lighting quality because different spectra render object colors in different ways. Spectrum influences the color appearance of objects, rendering them with more or less saturation, or hue-shifting, or some combination, including different color shifts for different object colors. This presentation will describe TM-30-15 IES Method for Evaluating Light Source Color Rendition as a framework for evaluating light source color quality, including the characterization of color fidelity, color gamut, object-saturation, and hue shifts. Visual examples for numerous spectra will be presented. The audience will become knowledgeable in interpreting the numerical and graphical results from TM-30-15.


Our speaker, Kevin Houser (Ph.D., PE, FIES, LC) is a Professor of Architectural Engineering at Penn State and the editor-in-chief of LEUKOS, the journal of the Illuminating Engineering Society (IES). His journal publications have been recognized by IES with the 2005, 2011, and 2013 Taylor Technical Talent Award, and by CIBSE with the 2005 Leon Gaster Award. His recent research has focused on fundamental inquiries into human perceptual and biological responses to optical radiation and the application of that knowledge to the spectral design of light sources. He is one of four editors of the 10th edition IES Lighting Handbook, for which he and the other editors received 2011 IES Presidential Awards. He has published more than 45 papers in refereed journals and has contributed to more than 100 other publications that include conference proceedings, editorials, trade magazine articles, IES technical documents, and contract reports.


  • When: Thursday, March 8, 2018

  • Program: 11:00 a.m. – 12:30 p.m.

  • Sponsor: IES Cleveland

  • Location: Huntington Convention Center

  • Cost: Free

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IES February 2018


Note: If you pay by credit card you don’t need to RSVP Mike Confer.


Mike Confer, Blue Streak: Treasurer