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

Thursday, October 20, 2005

General News
New Paper Details LRC Tool to Measure Light Exposure for Circadian System
The Daysimeter

The Lighting Research Center recently published details of one of its newest inventions, the Daysimeter, a field research tool designed to measure a person’s light exposure while going about a daily routine. Illuminance measurements recorded by the Daysimeter will help scientists studying the impact of light on health to understand how light affects the human circadian and visual systems. The circadian system controls the body's daily biological rhythms.

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A Second Kind of Light

Scientists at the Lighting Research Center have taken a significant step forward in understanding how light affects the human body. The scientists developed a model that postulates the mechanisms by which humans process light for the circadian system, the body’s system that regulates rhythms such as body temperature, hormone production, alertness, and sleep patterns. The research will be featured in Brain Research Reviews

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LRC Selected to Join FAA Centers of Excellence Program
Airport and airfield lighting

The Lighting Research Center has been selected by the Federal Aviation Administration (FAA) to join its “Centers of Excellence” program. The LRC will conduct lighting research as part of the Center of Excellence for Airport Technology, which focuses on airport structures, pavement materials, wildlife issues, anti-icing, and lighting. Specifically, the LRC will apply its expertise in the areas of solid-state lighting and vision science to provide new lighting solutions that benefit the aviation industry.

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LRC Awarded Contract to Redefine National Roadway Lighting Guidelines
Roadway lighting at night

The Lighting Research Center has been awarded a contract from the National Cooperative Highway Research Program (NCHRP), a division of the National Research Council's Transportation Research Board, to redefine national roadway lighting guidelines. The three-year, $800,000 project is designed to improve the operational efficiency of roadway lighting and reduce automobile crashes.

“The LRC will perform crash analyses and lighting studies through site evaluations and computer modeling for a wide range of conditions and roadway classifications,” said John Van Derlofske, Ph.D., head of transportation lighting at the LRC and principal investigator on the project. “The research will be used to develop tools to help roadway lighting specifiers nationwide determine when and where street lighting should be installed.”

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NLPIP at a Crossroads: 15th Anniversary Retrospective
NLPIP logo

The National Lighting Product Information Program (NLPIP) has changed the way lighting products are marketed and what information is reported. The program played a key role in the development of reliable conventional lighting products and the decrease of exaggerated manufacturer claims, but the demand for NLPIP data is changing.

With the lighting industry no longer feeling the urgency for such a program that it did in the 1990s, how does NLPIP maintain support as a "watch dog?" Well, that sense of urgency may soon be back with the rise of light-emitting diode (LED) technology. NLPIP program sponsors and managers are looking for ways to continue to provide services for conventional lighting, as well as guide new development in LED lighting technology. This is a difficult task, because there are no clear LED testing methods and no common LED manufacturing format. Concern is growing that the industry could slip back to an era of confusion and unsubstantiated claims.

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LRC Designs First-of-its-kind Interactive Lighting Lab
Lighting lab kitchen display

LRC researchers teamed up with a full-service home improvement retail chain to develop an interactive lighting lab. The lab, located in Curtis Lumber Co., Inc.'s flagship store in Ballston Spa, N.Y., was funded by the New York State Energy Research and Development Authority (NYSERDA). The project was part of an outreach program promoting the use of ENERGY STAR® lighting products among builders and consumers in New York State. The lighting lab enables customers to compare lighting options in terms of energy use, aesthetics, and lighting quality at the time of purchase—a first-of-its-kind lighting tool for consumers.

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DELTA Evaluates Solar-powered Lighting for Bus Shelters
PV-powered bus shelter

The DELTA program at the Lighting Research Center has released a new publication that documents a field test of a photovoltaic (PV) lighting retrofit kit for bus shelters. The kit is designed to power the backlighting system for advertising signs through the use of solar cells mounted on top of the shelter. DELTA tested the commercially available PV bus shelter kit to verify its performance over an extended period of time and to gauge public reaction to the bus shelter at night.

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NLPIP Updates Specifier Reports
NLPIP Specifier Reports

The National Lighting Product Information Program (NLPIP) has updated two existing Specifier Reports with new supplements to provide the latest information on lamps and lighting components. NLPIP released the eighth supplement to its Specifier Reports: Screwbase Compact Fluorescent Lamp Products, originally released in 1999, and the first supplement to Specifier Reports: Lighting Circuit Power Reducers, first released in 1998.

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Seeking Warehouse Sites for Upcoming Projects

The Lighting Research Center is seeking volunteers to host a warehouse demonstration project in 2006, as well as multiple warehouse sites to participate in a survey to allow the LRC to document the lighting in the facilities.

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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.



Rennselear Polytechnic Institute