Research

A brief article I wrote for tED Magazine. Reprinted with permission. In Value Metrics for Better Lighting (SPIE Press), Mark S. Rea, PhD, professor and director for the Lighting Research Center at Rensselaer Polytechnic Institute, proposes a new solution to an old problem in the lighting industry. The industry, he says, has traditionally focused on [...]

A new 2015 market research report by Research and Markets provides an in-depth evaluation of the architectural services industry in the United States. Sample findings: * In 2011, industry sales were $27 billion. * Over the past 3 years, the industry has grown at an annual rate of 3.5%. * There are 19,731 companies in [...]

IHS Electronics360 recently reported on the transition to LED technology in the global lighting market. They reported: * LED lamp revenues were 30% of the global lamp market in 2014, up from 25% in 2013 * LED market share in global lamp market expected at 67% in 2022 * Philips is worldwide market leader in [...]

OSRAM SYLVANIA has revealed the results of this year’s SYLVANIA Socket Survey, a national survey of consumer attitudes and awareness of lighting technology. Key findings:

The Lighting Controls Association recently published a whitepaper I wrote about the 2012 Commercial Buildings Energy Consumption Survey, published in stages this year by the Department of Energy. The 2012 CBECS provides an estimated profile of the U.S. commercial building stock based on an interviewed sampling. Information includes number of buildings, floorspace, age, building type, [...]

The Illuminating Engineering Society of North America (IES) recently announced the establishment a new committee: Resilient Lighting. The purpose of the Committee is to actively research, develop consensus of best practices, write standards documents and educate the profession on lighting equipment and recommended practices for lighting that must survive and perform during and after adverse [...]

My lighting column in the March issue of ELECTRICAL CONTRACTOR covers a new University of Illinois study that attempted to link daylight exposure to quality and duration of sleep among office workers: “Recently, a multidisciplinary team at the University of Illinois, Urbana-­Champaign, set out to determine the effect of daylight on the quality and duration [...]

The U.S. Department of Energy’s CALiPER program has released Report 20.4, which is part of a series of investigations on LED PAR38 lamps. Report 20.4 focuses on lumen maintenance, chromaticity maintenance, and catastrophic failure in 32 of the Series 20 LED PAR38 lamps and eight benchmark lamps, which were monitored for nearly 14,000 hours at [...]

I wrote this article for the April 2015 issue of tED Magazine. Reprinted with permission. From walls to paper to plastics to clothing, white abounds in the built environment. Lighting research, however, has focused on the rendering of colors. The color rendering index (CRI), in fact, is based on the rendering of colors by a [...]