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Troy, N.Y. -  5/3/2013

Lighting Research Center Innovation Featured in Scientific American

A U.S. patent issued to inventors from the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute was featured in last month’s issue of Scientific American. The April magazine’s Patent Watch column reviewed the “Solid state light source light bulb” invented by LRC professor and director of research Nadarajah Narendran and LRC co-inventors Jean Paul Freyssinier, senior research scientist, and Yiting Zhu, research scientist.

The patented light-emitting diode (LED) light bulb is designed to replace common incandescent and compact fluorescent lamps found in most homes, but addresses problems typically found in LED lamps currently available on the market. The unique design allows for better thermal management of the LEDs to significantly improve the reliability and the light output of the light bulb. The novel optical design, along with materials inside to refract and reflect light, allow the lamp’s light output distribution to match that of a traditional incandescent lamp. When used in a luminaire such as a table or floor lamp, it maintains a similar appearance and overall light distribution, eliminating the dark shadows and spotlight effect common with other LED replacement lamps.

About the Lighting Research Center
The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute is the world's leading center for lighting research and education. Established in 1988 by the New York State Energy Research and Development Authority (NYSERDA), the LRC conducts research in light and human health, transportation lighting and safety, solid-state lighting, energy efficiency, and plant health. LRC lighting scientists with multidisciplinary expertise in research, technology, design, and human factors, collaborate with a global network of leading manufacturers and government agencies, developing innovative lighting solutions for projects that range from the Boeing 787 Dreamliner to U.S. Navy submarines to hospital neonatal intensive-care units. In 1990, the LRC became the first university research center to offer graduate degrees in lighting and today, offers a M.S. in lighting and a Ph.D. to educate future leaders in lighting. Learn more at

About Rensselaer Polytechnic Institute
Founded in 1824, Rensselaer Polytechnic Institute is America's first technological research university. Rensselaer encompasses five schools, 32 research centers, more than 145 academic programs, and a dynamic community made up of more than 7,900 students and more than 100,000 living alumni. Rensselaer faculty and alumni include more than 145 National Academy members, six members of the National Inventors Hall of Fame, six National Medal of Technology winners, five National Medal of Science winners, and a Nobel Prize winner in Physics. With nearly 200 years of experience advancing scientific and technological knowledge, Rensselaer remains focused on addressing global challenges with a spirit of ingenuity and collaboration.