Slideshow: Six shakers and movers in LED technology
In alphabetical order the list is a personal choice of the shakers and movers in the LED technology sector but if you believe another person should be nominated then email me with your reasons: paul.buckley@eetimes.be
George Craford is the Chief Technology Officer for Philips Lighting Lumileds. Craford began his professional career at the Monsanto Chemical Company, then in 1979 joined Hewlett Packard, where in 1982 he became the research and development manager of the HP Optoelectronics Division. When Lumileds Lighting (now Philips Lumileds Lighting Company) spun out from HP in 1999, Craford was named the company’s Chief Technical Officer (CTO).
In 1972 Craford invented the first yellow LED as well as red and red-orange LEDs. At Monsanto, his group developed nitrogen-doped GaAsP, and at HP pioneered development of AlInGaP LEDs and developed AlGaAs and InGaN products. More recently, his team implemented compound semiconductor wafer bonding to create devices with efficiencies exceeding incandescent and halogen lights.
Craford’s research work in solid-state lighting has enabled LEDs to be transformed into a viable, energy-efficient replacement for traditional incandescent and fluorescent light sources.
Related links and articles:
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High voltage LEDs help simplify compact fixture design
Emitter doubles lumen density and achieves 50,000-CBCP
200-lm/W LEDs promise efficient, tunable white light
Professor Harald Haas is a Professor at the University of Edinburgh and holds the Chair of Mobile Communications in the Institute for Digital Communications (IDCOM) at the University of Edinburgh, UK. Haas was formerly the Project Manager at Nokia Siemens Networks.
A research group led by Prof Haas published the first proof-of-concept results demonstrating that it is possible to exploit the high crest factor of orthogonal frequency division multiplexing (OFDM) commonly accepted as a disadvantage in radio frequency (RF) communications, to turn commercially available light emitting diode (LED) light bulbs into broadband wireless transmission systems.
Prof Haas originally coined the term LiFi which is a type of visible light communication (VLC) technology that delivers a networked, mobile, high-speed communication solution in a similar way to WiFi.
Prof Haas, first demonstrated Li-Fi technology to the world, live on stage at TED Global in July 2011.
Haas has co-authored multiple books and chapters including ‘Next Generation Mobile Access Technologies’ and ‘100 Produkte der Zukunft – Wegweisende Ideen.’
In 2012, Prof Haas helped set up pureLiFi, which is a spin-out from the University of Edinburgh, where its pioneering research into visible light communication has been in development since 2008 as part of the renowned D-Light project.
One of the commercial pioneers of Li-Fi technology, pureLiFi appointed Prof Haas as the company’s Chief Scientific Officer.
Related links and articles:
News articles:
Scottish research centre seeks bright future for Li-Fi internet technology
LiFi proposal for massive-MIMO visible-light communication networks
LED lightbulbs access Internet to pave the way for energy saving LiFi technology
Aldo Kamper has been the President and Chief Executive Officer of Osram Opto Semiconductors GmbH since October 1, 2010.
Kamper has helped steer Osram Opto Semiconductors to become one of the top three LED companies worldwide. The company’s product portfolio includes high-power LEDs in the visible range, high-performance infrared LEDs, high-quality optoelectronic detectors, and high-power semiconductor lasers.
Kamper served as the Vice President and General Manager of LEDs within Osram Opto Semiconductors from 2001 to 2006 and Director of Visible LED Automotive from 1999 to 2001. He served as an Executive Vice President and General Manager of NAFTA Region Automotive Lighting Division of Osram Sylvania Inc. from 2006 to 2010. From 1999 to 2006, he held executive positions at OSRAM Opto Semiconductors in the fields of automotive and visible LEDs.
Related articles and links:
www.osram-os.com
News articles:
Osram Opto Semiconductors boosts capacity for InGaAlP LEDs
Ultra-compact yellow LED opens headlamp design horizons
Compact versatile infrared LED opens up numerous industrial applications
Dr. Christian May is the Deputy Director, Head of Business Unit of The Fraunhofer Research Institution for Organics, Materials and Electronic Devices COMEDD which was founded as an independent research institution of the Fraunhofer-Gesellschaft in order to transfer the results of research and development in the field of organic materials and systems to production.
Dr May has been working at COMEDD for eleven years. Fraunhofer COMEDD is an European-wide leading production-related research and development center for organic semiconductors focusing on organic light-emitting diodes and vacuum technology. The Fraunhofer COMEDD clean room consists of two pilot lines for fabrication and integration of OLEDs and a research line for the roll-to-roll-fabrication on flexible substrates. Fraunhofer COMEDD offers a wide range of research, development and pilot production possibilities, especially for OLED lighting, organic solar cells and OLED microdisplays.
As a flexible electronics initiative of the Fraunhofer Society, the Dresden-based cluster FLEET taps into the expertise of Dr May and three Fraunhofer institutions (FEB, IWS, COMEDD), the IAAP of Technical University of Dresden, and SEMPA Systems. The cluster is aimed at accelerating the development of encapsulation technologies, making them ready for the industrial and serial production by cooperation across the value chain with one location concentration.
Related articles and links:
News articles:
cluster FLEET aims to commercialize flexible OLED encapsulation
Project IMAGE yields printable transparent and flexible electrodes for OLEDs and solar cells
The Fraunhofer COMEDD to become an independent research institution
Universal Display, Fraunhofer IPMS sign agreement on OLED materials
Shuji Nakamura has been described as "the man who single-handedly created the current LED revolution".
In 1989, Nakamura started researching blue LEDs using group-III nitride materials. In 1993 and 1995, he developed the first group-III nitride-based blue/green LEDs and also developed the first group-III nitride-based violet laser diodes (LDs) in 1995.
Nakamura’s achievements have resulted in a number of benefits to mankind through their use in devices for energy efficient solid-state lighting, displays, medicine, and the next generation of Blu-Ray optical storage.
The development of nitride based semiconductors, by Prof. Nakamura, arguably represents one of the most important achievements in the materials science of semiconductors in the last 30 years. Specifically, the discovery of p-type doping in Gallium Nitride (GaN) and the development of blue, green, and white light emitting diodes (LEDs) and blue laser diodes (LDs) has enabled energy efficient lighting and displays.
Since 2000, he has been a professor of Materials at the University of California, Santa Barbara and holds more than 100 patents and has published more than 400 papers in his field. In 2008, Nakamura, along with fellow UCSB professors Dr. Steven DenBaars and Dr. James Speck, founded Soraa, a leading developer of solid-state lighting technology built on pure gallium nitride substrates.
Related links and articles:
News articles:
UC Santa Barbara researchers point the way to brighter solid-state lighting
How LED phosphor IP is shaping the industry
Charles M. Swoboda is President, Chief Executive Officer and Chairman of Cree Inc.
Swoboda has helped guide Cree to become one of the top five global LED companies by revenue. Cree has been one of the fastest growing companies in the United States under Swoboda’s guidance as a senior executive.
Among the breakthroughs Cree’s research on SiC has made possible was the world’s first blue light-emitting diode (LED), which, when used with existing types of LED’s, made possible a variety of full-color electronic displays.
Swoboda has served as the Cree’s Chief Executive Officer since June 2001, as President since January 1999, as a member of the Board of Directors since October 2000 and as chairman since April 2005. He was Chief Operating Officer of the company from 1997 to June 2001 and Vice President for Operations from 1997 to 1999. Prior to his appointment as Vice President for Operations, Swoboda served as Operations Manager from 1996 to 1997, as General Manager of the company’s former subsidiary, Real Color Displays, Incorporated, from 1994 to 1996 and as LED Product Manager from 1993 to 1994. Prior to joining Cree Swoboda was previously employed by Hewlett-Packard Company.
Related links and articles:
www.cree.com
News articles:
Cree smashes efficiency benchmark with first 200-LPW LED luminaire
Cree LED arrays claim highest lumen density performance
Self-programming wireless lighting controls offer major power savings
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