High Power White LEDs for Illumination: Technologies and Applications
With the rapid progress
made in high power white LED development in the areas of performance
improvement and cost reduction, the adoption of the LEDs for illumination has
accelerated over last few years. The replacement of low efficiency traditional
light sources such as regular incandescent light bulbs and halogen lamps with
high efficiency LED based lamps will help to save energy and reduce carbon
emission, thus contribute to the fight of global warming.
In this talk, Dr. Sun will present a few key technologies of making high power
White LEDs, the state of the art performances and their applications in
illumination. Dr. Sun will discuss the challenges and opportunities of the
white LEDs for solid state lighting. He will also show some white LED products
and LED based lamps developed by Philips Lumileds and Philips Lighting.
Sun received his Ph.D in Engineering Physics and Material Sciences from
University of Virginia in 1994. After graduation, he worked at Xerox PARC on
semiconductor lasers and MEMS development as a member of the technical staff
until 2000. He then joined a startup called Bandwidth9 to develop tunable long
wavelength VCSELs for telecommunications. In 2003, he joined Philips Lumileds
to develop high power LEDs for illumination. He is currently a senior manager
and principle investigator for a few high power white LED programs funded by
United States Department of Energy (DOE). He holds over 50 patents in
semiconductor lasers, MEMS and power LEDs and has published about 30 journal
papers and a book chapter.