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LRC News

Tuesday, May 8, 2007
Research News
Join the LRC team!

The LRC is seeking three new full-time professionals to help it continue to lead lighting research and education. This is a rare opportunity to join the Lighting Research Center.

Director of Energy Programs - Lead the LRC in electric utility issues, policies, and technology applications.

Senior Research Scientist - Initiate and lead research related to the effects of lighting on people.

Research Specialist - Plan and conduct research projects.

Learn more about these opportunities or apply online.

Circadian Light Research to Expand with New Daysimeter User Group

The Lighting Research Center has initiated a new collaborative effort in the area of circadian light research. The LRC’s Daysimeter User Group, a joint group of researchers from manufacturer, academic, and medical institutions around the world, is beginning to collect data from a variety of subjects to study the effects of light on human health and well-being. The researchers are using a new field research tool called the Daysimeter, which was developed by the LRC.

LRC Director Mark Rea, Ph.D., said, “The data collected by the group will be used to establish the first quantifiable glimpse at light exposures for the populations under study. Ultimately, we hope to understand how light can improve health and quality of life for those with disrupted circadian rhythms.”  Full story. . .

LED Group Releases New ASSIST recommends

 ASSIST recommends publications
The Alliance for Solid-State Illumination Systems and Technologies (ASSIST) has published two new volumes in its ASSIST recommends series. The 3-part volumes discuss under-cabinet lighting and directional lighting in terms of general design and application, how to select LED lighting, and recommendations for manufacturers testing and evaluating their own fixture products.

ASSIST’s top priority in developing these volumes was to begin public discussion on the need for testing criteria and methods that allow lighting fixtures to be compared on the same playing field, regardless of the type of light source technology inside.

All ASSIST recommends publications are available in Adobe Acrobat PDF format for free download.  Full story. . .

Field Study Examines Visual Performance for Drivers at Mesopic Light Levels

Street lighting used in mesopic lighting field study
LRC researchers conducted a field study to extend fundamental findings about visual performance at mesopic light levels in a driving context. Study subjects drove a vehicle along a lighted street while performing a high-order decision-making task. They identified the direction of an off-axis target, toward or away from the street, and either braked or accelerated, accordingly.

This study showed that off-axis response times under a ‘white’ metal halide light source are shorter than they are under high-pressure sodium at the same photopic light levels. However, this study also demonstrated that task performance improves as a function of unified luminance, even for a realistic high-order visual task.

The paper, “Driver decision making in response to peripheral moving targets under mesopic light levels,” is presented in the journal, Lighting Research and Technology.  Full story. . .

LRC Graduate Student Receives Foundation Award for Research in Energy-efficient Solid-state Lighting

Yiting Zhu, a doctoral student in the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute in Troy, New York, has received a prestigious two-year Link Foundation Energy Fellowship for her work in energy-efficient solid-state lighting. The Link Foundation awarded only three Energy Fellowships for 2007-2009.

Zhu is exploring the use of novel phosphors to improve the efficiency of light-emitting diodes (LED). Her work is currently dedicated to white LED efficiency improvement to meet the industry goal of 150 lumens per watt (a measurement of a lamp’s light output compared to its wattage). When commercialized, these light sources will be 10 times more efficient than the energy-hungry incandescent lamps commonly used in interior spaces.  Full story. . .

LRC Students Design Lighting for First Optimum Performance Home

A group of graduate students from the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute was asked to design the lighting for the first Optimum Performance Home – an exemplary home/office complex at the Sea Ranch development in Sonoma County, California. The home is a Platinum-level LEED (Leadership in Energy and Environmental Design – part of the U.S. Green Building Council) for homes project and is one of only two homes in California to achieve this status. The students' design impressed the client and editor of Ultimate Home Magazine, and he invited them to write about it.  Full story. . .

LRC Accepting Student Applications for Fall 2007

The LRC is accepting applications for Fall 2007 graduate education program enrollment. Choose from three graduate degree options:

Master of Science in Lighting: This two-year, 48-credit program is the premier master's level degree in the field. It immerses students in lighting research and application.

Master of Science in Architectural Sciences with a Concentration in Lighting: This nine-month, 30-credit program is ideal for those who have practical experience and want to advance their professional careers in lighting.

PhD in Lighting: The highest degree in the field of lighting, it allows students to undertake concentrated research in a select area. It is designed for students who want to work with leading researchers or teach at the university level.

To learn more about or enroll in one of these exciting graduate programs, contact Dan Frering, the LRC's manager of education at (518) 687-7149 or frerid@rpi.eduOr visit www.lrc.rpi.edu/education/graduateEducation/.

LED Lighting Institute

The Lighting Research Center is again holding its three-day, hands-on seminar to teach industry professionals about incorporating light-emitting diodes (LEDs) into lighting applications. The LED Lighting Institute includes updated technical content based on the latest industry developments. Participants take part in workshops and hands-on lab sessions highlighting LED technology, lighting design, and optical modeling, while using the newest LED products on the market.

“This seminar includes a detailed LED evaluation segment,” said Dan Frering, LRC manager of education. “Participants design and evaluate complete LED systems rather than just individual LED fixtures.”

The next LED Lighting Institute will be held in September, 2007. The actual date has not yet been set. Contact Dan Frering, education manager at (518) 687-7149 or frerid@rpi.edu for details or to enroll. You can also visit the LED Lighting Institute Web site www.lrc.rpi.edu/education/outreachEducation/ledinstitute.asp.

About the Lighting Research Center

The Lighting Research Center (LRC) is part of Rensselaer Polytechnic Institute of Troy, N.Y., and is the leading university-based research center devoted to lighting. The LRC offers the world's premier graduate education in lighting, including one- and two-year master's programs and a Ph.D. program. Since 1988 the LRC has built an international reputation as a reliable source for objective information about lighting technologies, applications, and products. The LRC also provides training programs for government agencies, utilities, contractors, lighting designers, and other lighting professionals. Visit www.lrc.rpi.edu.

Contact:lrcnewsletter@rpi.eduPhotos & Graphics:Dennis Guyon
Editor:Keith ToomeyWeb Production:Joann Coffey
Contributing Writers:Jennifer Taylor, Keith Toomey, Dennis Guyon
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