Research

A new LRC study investigated the effectiveness of Apple’s Night Shift screen setting for lessening the impacts of nighttime iPad use on melatonin suppression, a marker of the circadian system. The study found changing screen color alone is insufficient for limiting the impact of portable electronic devices used at night, and that screen brightness should also be reduced.

The Illuminating Engineering Society’s (IES) 2018 Research Symposium, themed, “Light and Human Health,” will be held April 8-10, 2018 at the Crowne Plaza Atlanta and SimTigrate Design Lab in Atlanta, GA. Registration is now open.

In this republication of a recent Postings, SSL Program Manager Jim Brodrick discusses developments in how to measure and express the color qualities of light.

A 2016 study at the London School of Economics and Political Science proposes that the way urban spaces are lighted reinforces inequality by providing visual cues to class segregation. Check out this video to learn more.

CLTC recently collaborated with the Emerging Technologies group at Pacific Gas & Electric Company to evaluate linear LED lamps in a variety of luminaire applications, as well as identify cross-compatibility issues of select products.

The increasing popularity of LED technology has raised concerns about retinal damage via a mechanism known as blue-light hazard. Research conducted by the Lighting Research Center demonstrated in a majority of cases LED lighting does not present a greater risk of blue-light hazard than traditional sources such as incandescent.

Wireless features, automated lighting controls, and home automation are becoming more popular in residential projects; the most popular home products demonstrate energy management features. These are just some of the findings from The American Institute of Architects’ (AIA) Home Design Trends Survey covering activity during the second quarter of 2017 that focused on emerging home features, systems and technologies.

The U.S. Department of Energy’s GATEWAY program has released a new report on a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX, which provides valuable insights into the use of this technology in a real-world setting.

I wrote the below news item for the September issue of tED Magazine. Reprinted with permission. High- and low-bay luminaires are common in industrial applications such as warehouses and manufacturing but also certain commercial applications such as big-box stores. “High bay” frequently refers to luminaires mounted at a height over 20 feet, “low bay” up [...]