Craig DiLouie

Lighting Columnist

Craig DiLouie is a journalist and educator specializing in the lighting industry. Learn more at ZINGinc.com and LightNOWblog.com.​

Articles by Craig DiLouie

February 2016
From making clothing look vibrant in a retail store 
to facilitating interaction in offices by properly rendering skin tones, a light source's color quality is an important specification characteristic. For this, we use two metrics, correlated color temperature and the color rendering index (CRI). Varying these color qualities can affect how objects, spaces and people appear to the eye.
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February 2016
The proliferation of automatic lighting controls is creating demand for commissioning services, including functional testing. While commissioning—a quality assurance process—is required in many new construction projects, research suggests that applying elements of the commissioning process to existing installations can optimize performance and energy savings. READ MORE
January 2016
Solid-state lighting, such as light-emitting diode (LED) technology, promises significant short-term opportunities, notably in the retrofit market. However, many industry stakeholders are concerned about long-term risks LEDs present as they continue to gain acceptance.
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  • The 24-hour lighting scheme demonstration room at the Lighting Research Center provides cycled electric lighting. Shown here are cool, high light levels during the day.
December 2015
Light doesn’t only serve as the basis of vision. It can influence behavior and how people feel. Further, light plays an important role in human health. As researchers gain insight into the relationship between light and health, the lighting industry is beginning to consider health effects in product and lighting design best practices. Heart of the issue
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December 2015
The organic light-emitting diode (OLED) continues to develop alongside the light-emitting diode (LED). This light source’s intriguing capabilities position it as a strong potential alternative to LEDs for certain applications.
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November 2015
High-value specialty crops, such as fruits, vegetables and ornamentals, account for a tiny percentage of U.S. farmland but yield about 40 percent of farmland revenues. In many regions, these crops are grown in shielded environments, such as greenhouses. READ MORE
October 2015
Mark S. Rea, Ph.D., professor and director of the Lighting Research Center at the Rensselaer Polytechnic Institute, believes the lighting industry has a problem. Solving it first requires an admission that it exists.
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September 2015
Wi-Fi is not the only means of transmitting data these days. Another unique method you may not have heard of is visible light communication (VLC). 
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September 2015
In late 2014, the U.S. Department of Energy’s(DOE) Municipal Solid-State Street Lighting Consortium (MSSLC) published the results of a survey of entities across the United States that operate public street and area lighting.
 Not surprisingly, the survey found that high-pressure sodium (HPS) is the most popular outdoor light source technology among respondents, followed by metal halide (MH). 
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