Advancing the effective use of light for society and the environment.

Vol. 2, No. 2

Thursday, April 17, 2003

General News
LRC builds relationships with IDA and others to reduce light pollution

Two LRC representatives appeared at the International Dark-Sky Association's (IDA's) annual meeting in Tucson, Arizona, last month. LRC Director Dr. Mark Rea gave a presentation on the spectral response of the eye at mesopic light levels, pointing out that researchers need the right photometry tools for what they want to study. Lighting researcher Dr. Michele McColgan discussed the many light pollution projects currently underway at the LRC, including guidelines to help municipalities reduce light pollution, a recent light pollution seminar, a new Lighting Answers publication on the subject (see story below), and research projects to study illuminated signs and to develop a new light pollution index.

Click here to read the full story.

LRC drives transportation lighting research in new directions

The LRC’s new Transportation Lighting Alliance, or TLA, is providing people and organizations interested in transportation lighting with a new resource. The TLA, according to Dr. John Van Derlofske, head of transportation lighting at the LRC, will advance transportation lighting design, testing, and practice by researching and disseminating objective information. Its research focus is on vehicle and roadway lighting and visibility, initially concentrating on vehicle forward lighting and visibility.

Click here to read the full story.

Daylighting studies at the LRC yielding results

Research into the effects of daylighting on the circadian system continues at the LRC, with a new study just concluding. Researchers are now in the data analysis stage, and the study's results may have implications both for energy efficiency in office buildings and for worker productivity.

Earlier this year, LRC researchers studied a group of workers in long workdays that started before sunrise and ended after dark. This allowed the researchers to control their access to daylight, avoiding light cues outside the laboratory that would re-set their circadian cycles. This new study follows an earlier study conducted in an actual office building.

Click here to read the full story.

Lighting information is getting easier to find and use

The LRC’s newly redesigned Web site is now live. LRC Web designer Julie Bailey, leading a team of four writers, designers, and programmers, created the initial face of the site. The project is an ongoing one, with new material being added weekly.

The new site is more accessible to a wider range of users. Its structure reflects the tasks users will perform there, and it's built with the LRC's broad audience of lighting scientists and students, lighting professionals, and lighting consumers in mind. Bailey says, "Our goal was to consolidate the more than 2,000 pages of information that existed on the old site and to make the information more usable."
Click here to view the new LRC website.

Click here to read the full story.

Got questions about light pollution? NLPIP report has answers

The latest in the National Lighting Product Information Program's (NLPIP's) Lighting Answers series, Lighting Answers: Light Pollution, is now online. The report answers commonly asked questions about light pollution. Topics include sky glow, light trespass, and glare, and how to measure them. Environmental considerations and how different areas are addressing them are discussed. Finally, this publication provides pointers to lighting professionals on how to minimize the effects of light pollution.

Click here to view Lighting Answers: Light Pollution.

Landscape lighting institute set for May 2003

Janet Lennox Moyer, author of The Landscape Lighting Book and an adjunct professor at the LRC, joins with other LRC staff members to offer the Landscape lighting institute, a one-of-a-kind, intensive workshop series on landscape lighting. The institute will be in two parts so novices as well as experienced landscape lighting professionals can learn. Part one for novices is May 9 through 11. Part two, for experienced professionals and those who attended part one, is May 11 through 14. The small class sizes provide everyone the benefit of hands-on participation and individual instruction.

Participants will learn about important lighting issues, lighting technologies, equipment, installation and maintenance, design, owner-client communications, planning for long-term plant growth, the effect of climate, and the relationship between light and plant life. Enroll now for the next session to be held May 9 through 14, 2003!

Click here to learn more about the landscape lighting institute.

New Field Test DELTA examines prototype of integrated skylight luminaire

The inaugural issue of Field Test DELTA examines a prototype integrated skylight luminaire, which combines a special skylight with fluorescent lighting and a special control system to dim or switch the electric lighting when sufficient daylight is available. Field Test DELTA, a new publication of the LRC's Demonstration and Evaluation of Lighting Technologies and Applications (DELTA) program, examines new products before they get to the market to help manufacturers to develop effective and efficient products that consumers will accept and use.

This issue shows how prototypes of an integrated skylight luminaire were installed in a working warehouse and analyzed for energy savings and lighting quality. High-bay warehouses, light industrial facilities, and big box retail stores offer the opportunity to save energy and improve occupant satisfaction by admitting daylight through their roofs.

Click here to view Field Test DELTA: Integrated Skylight Luminaire.

DELTA publications are available in print and online here.

Using ultraviolet irradiation to control tuberculosis in buildings

A new booklet published by the LRC explains how to use ultraviolet irradiation to disinfect the air inside buildings. This information focuses on tuberculosis but can be applied for controlling other microbial disorders such as influenza, measles, and aerosolized bioterror agents.

The air in buildings often contains bacteria and viruses that can cause illness in people who inhale it. Tuberculosis is one such disease. To reduce the risk of transmission of disease, the air can be disinfected in three ways: dilution, filtration, and purification by ultraviolet germicidal irradiation (UVGI). This publication, a joint project of the LRC and Saint Vincent Catholic Medical Centers in New York City, sponsored by the New York State Energy Research and Development Authority, answers common questions about tuberculosis and shows how to control its transmission using UVGI. This information is presented for facility ventilation specifiers, architects, and the general public.

Click here to view Controlling Tuberculosis Transmission with Ultraviolet Irradiation .

Lighting Research Center receives $1.7 million to "Capture the Daylight Dividend"

The LRC is launching a new research program to investigate human performance and business benefits of harvesting daylight for use in office buildings.

The Capturing the Daylight Dividends program is a collaborative effort between the LRC, the U.S. Department of Energy (DOE), the New York State Energy Research and Development Authority (NYSERDA), and other organizations.

The US Department of Energy awarded an $850,000 research contract, and NYSERDA added $300,000 to that amount. The LRC is receiving additional funding from the Iowa Energy Center, the California Energy Commission, the Northwest Energy Efficiency Alliance, and Connecticut Light and Power, bringing the total funding for the daylighting research to $1.675 million.

Click here to read the full story.

Milestone symposium will guide the future of lighting

The LRC will host “Bridges in Light: The Inaugural Symposium,” a milestone event designed to excite the stakeholders in lighting. One of the world’s leading authorities on innovation management and disruptive innovation will be the keynote speaker. The dynamic agenda will feature visionaries and authorities from both the product driver side of the market who will articulate “the upside of a disruptive technology,” such as solid-state lighting, and the social driver side of the market, such as health and well-being, sustainability, and load management, expressing "what these change forces could mean" to the lighting industry. These will be complemented by a panel of representatives from various end-user market segments such as healthcare facilities, speculative real estate, and transportation and roadway systems, expressing "how the industry might respond." The format will be a combination of lectures and panel discussions, meant to provoke thought, generate ideas and give direction to the future so that lighting will be regarded as having "value,"’ not as a "commodity."

The day’s events will be followed by a fun evening of food, wine, and a special appearance by astronaut Dr. Nancy Currie, a veteran of several NASA space shuttles, who will talk about her experiences with lighting in space. A tour of the Lighting Research Center in Troy, New York, a half hour south of Saratoga Springs, can also be arranged for anyone who is interested.

The symposium is currently scheduled for October 22 or 23, 2003, in historic Saratoga Springs, New York. Registration for the symposium is $900. Early registration by August 15, 2003, is $750. Date is subject to change slightly. Further details, agenda, and registration information will be announced shortly.

Contact Patricia Rizzo at (518) 687-7194 or by e-mail at

About the LRC

The Lighting Research Center (LRC) is part of Rensselaer Polytechnic Institute and is the leading university-based research center devoted to lighting. Founded in 1988, the Lighting Research Center has built an international reputation as a trusted and reliable source for objective information about lighting technologies, applications, and products. Its mission is to advance the effective use of light and create a positive legacy of change for society and the environment

© 2003 Rensselaer Polytechnic Institute, Troy, NY 12180 USA.

Rennselear Polytechnic Institute