Solid State Lighting From Technology to Marketplace Apr 13 2010 The Bahen Centre for Information Technology Room 1160, 40 St. George St., Toronto AGENDA 8:00-9:00 Registration 9:00-9:15 Welcome Address: Prof. R.J. Dwayne Miller, Director, Institute for Optical Sciences, 9:15: 9:30 Solid State Lighting Network: Introduction, Venkat Venkataramanan 9:30-10:45 Separating the Wheat from the Chaff: DOE s Voluntary Labeling Program to 10:45-11:00 Coffee Encourage Truth in Advertising. Lighting Facts and other DOE Market Based Programs, Marcy Sanders, D&R International, USA 11:00-11:40 Managing expectations of LED product life time, Venkat Venkataramanan, 11:40-12:20 Optical design for high power LEDs, Rick Mousseau, Future Electronics 12:20-13:00 Drivers and dimmers for LEDs, Dave Sabo, National Semiconductors 13:00-14:00 Lunch 14:00-15:30 Materials and Structures for highly efficient organic LEDs, Karl Leo, Technische 15:30-15:45 Coffee Universität Dresden, Germany. 15:45-17:00 Panel Discussion Moderator: Prof. Zheng Hong Lu Prof. Karl Leo, Brian Owen, Marci Sanders, Dr. Venkat Venkataramanan, Dr. Tung Yang Wang For registration details, abstracts, speaker bios and updates follow: http://www.optics.utoronto.ca/sslnet/events/ssl_workshop_2/ Sponsors
Solid State Lighting From Technology to Marketplace Apr 13 2010 Solid State Lighting Network Abstracts Venkat Venkataramanan The Institute for Optical Sciences has started a Solid State Lighting Network to build constructive partnerships between the university and industry to help optimally harvest the intellectual capital. The goal of this network is to bring the industrial strengths, research leadership and human resource capital of the region to focus, thereby better positioning the region to capture significant share of the rapidly growing Solid State Lighting market. Fostering a constant dialogue between the academic researchers and industry, the network will help identify routes to solve R&D problems the industries may face, given the limited breadth and reach of their workforce. The network will also enable students to interact directly with the industries, help honing their skills attractive to their prospective employers. Separating the Wheat From the Chaff: DOE s Voluntary Labeling Program to Encourage Truth in Advertising. Lighting Facts and other DOE Market Based Programs Marci Sanders D&R International & Lighting Facts, USA Lighting Facts is an on-line pledge and labeling program sponsored by the U.S. Department of Energy. The Lighting Facts label signals that a manufacturer has tested its product to LM-79 and that the DOE has verified that the performance results are accurately reported on the label. The Lighting Facts label provides retailers, distributors, utilities and lighting designers with the critical information they need to evaluate whether the products will meet their customers expectations. This presentation will explore the evolution of this innovative approach to curbing the problems of overstated claims in an emerging market. The presentation will also include an overview of other valuable DOE Market Based programs and resources, such as CALiPER, GATEWAY, Lighting for Tomorrow and Next Generation Luminaire Design Competition.
Marci Sanders is a program manager at D&R International, where she supports the U.S. Department of Energy s (DOE) solid-state lighting program. Her primary responsibility is management of the Lighting Facts Program, a voluntary online pledge and labeling program to promote accuracy and transparency in manufacturers claims of product performance. Marci has more than 15 years of market development, program and project management expertise in energy efficiency. She holds a Bachelor s Degree in Political Science from Willamette University. Managing expectations of LED product lifetime Venkat Venkataramanan Solid State Lighting is a major disruptive technology that is reshaping the entire lighting industry. With rapid advances in technologies come the uncertainties in lifetime expectations of LED products. Unscrupulous claims on performance and lifetime impede the market adoption rate. Unlike legacy lighting products, LEDs rarely fail catastrophically. This talk will highlight two important factors of lumen depreciation and colour shift of LED products. We will also discuss potential pitfalls to be aware of in selecting an LED luminaire. Venkat Venkataramanan is the Head, Scientific Operations at the Institute for Optical Sciences, and the founder of SSLNet. His current research is focused on developing new generation of high efficiency nanophosphors for Solid State Lighting applications. He also heads the LED applications and photometry laboratories. Venkat is currently an Adjunct Professor at the Department of Electrical Engineering and Computer Science at Ryerson University, also at Toronto. He is the founder and Chief Technology Officer of Lumentra Inc. that commercializes nanophosphors and provides photometric services to the industries. Venkat is a Canadian national advisory committee member of International Commission on Illumination and represents Canada on the international technical sub-committee of standardization of measurements of high bright LEDs. Materials and Structures for Highly Efficient Organic LED Karl Leo, Institute for Applied Photophysics, Technische Universität Dresden, Germany Organic LED have developed in the past 20 years from a lab curiosity to a successful product. Despite large advances in performance and lifetime, future applications in OLED TV and lighting require further progress. In this talk, I will first review some of the basic operating principles of OLED. Then, I will discuss our own work on improving efficiency and lifetime of OLED. We have recently shown that the electrical doping concepts can be successfully applied in OLED devices:
the concept of molecular doping allows to realise green OLED devices with the highest efficiencies reported so far, well exceeding the efficiency of current inorganic GaN devices! I will also discuss our recent results on white OLED which have recently achieved efficiencies comparable to fluorescent tubes, opening the path to a new form of high-efficiency area lighting devices. Surprisingly, the field of OLED is currently dominated by evaporated small-molecule devices, despite the fact that initially, polymer OLED which allow liquid processing were seen as the more direct and cost-effective approach to devices Professor Karl Leo, is from the Institute for Applied Photophysics at the Technische Universität Dresden, Germany. He obtained the Diplomphysiker degree from the University of Freiburg in 1985, working with Adolf Goetzberger at the Fraunhofer-Institut für Solare Energiesysteme. In 1988, he obtained the PhD degree from the University of Stuttgart for a PhD thesis performed at the Max-Planck-Institut für Festkörperforschung in Stuttgart under supervision of Hans Queisser. From 1989 to 1991, he was postdoc at AT&T Bell Laboratories in Holmdel, NJ, U.S.A. From 1991 to 1993, he was with the Rheinisch-Westfälische Technische Hochschule (RWTH) in Aachen, Germany. Since 1993, he is full professor of optoelectronics at the Technische Universität Dresden; since 2002, he is also at the Fraunhofer-Institute for Photonic Microsystems, presently as director. His main current interests are novel semiconductor systems like semiconducting organic thin films; with special emphasis to understand growth, basic device principles and the optical response. Recently, he has also worked on device development, such as highly efficient organic LED and solar cells. His work was recognized by several awards, including the Leibniz-Award in 2002. He was involved in the founding of several companies including Novaled AG and Heliatek GmbH. Rick Mousseau Future Electronics, Grand Rapids MI, USA The ongoing transition to solid state lighting has created some significant optical challenges. Most conventional luminaires designed for traditional lighting sources, require a significant optical design customization to take full advantage of high output LEDs. The presentation will begin with optical modeling techniques used to develop and design optical components for high output LEDs. Methods of modeling the LED and ways of predicting the performance of an LED system in various applications will be demonstrated. Current LED concepts for general lighting will be highlighted along with methods of modeling diffusers so that the physical appearance of a luminaire can be predicted. Also, current off-the-shelf LED optics that are readably available will be reviewed Rick Mousseau is the Advanced Engineer for Future Electronics specializing in Optical Assistance for LED applications. Rick worked as a test engineer for the Rocketdyne division of Rockwell International developing optical components for high energy chemical lasers. In the 11 years that followed, Mr. Mousseau worked as an optical engineer designing, managing and testing visible/infrared target acquisition systems for the General Dynamic M1A2 Abrams tank. Previously to his current position, Rick worked 12 years for Magna Donnelly
designing interior illumination and exterior signaling automotive lighting components. Rick received his BSEE from University of Michigan and MSEE from Wayne State University. David Sabo National Semiconductors, USA This talk will cover LED Driver Basics with a little history, outline important design criteria. We will then discuss basic DC-DC LED driver topologies and their advantages and disadvantages. Specific solution and application examples will be discussed for track, walkway and architectural lights, with buck, boost and buck-boost configurations. An AC-DC TRIAC retrofit with dimmer decoder buck will also be discussed. Panel Discussion Moderator: Prof. Zheng Hong Lu, Prof. Karl Leo, Technische Universität, Dresden Mr. Rick Mousseau, Future Electronics Mr. Brian Owen, GreenTBiz and LEDs Magazine Mr. David Sabo, National Semiconductors Ms. Marci Sanders, D&R International, USA Dr. Venkat Venkataramanan, Dr. Tung Yang Wang, Osram Sylvania Sponsors