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12: Leuchtende Zukunft? Herausforderungen und Chancen der LED-Beleuchtung

Breakout / Working Group
in englischer Sprache

Das Bewusstsein für die toxischen Bestandteile von Leuchtstoffröhren und das EU-Verbot von Glühlampen hat das Thema Beleuchtung ins öffentliche Bewusstsein gebracht. Rasche Fortschritte auf dem Gebiet der LED-Beleuchtung revolutionieren moderne Beleuchtungssysteme und eröffnen neue Marktchancen. Weitere Untersuchungen zu den Auswirkungen von Beleuchtung auf Menschen, die moderne Architektur, aber auch über unerwünschte Effekte wie Lichtverschmutzung sind notwendig. Die Verleihung des Physik-Nobelpreises für die Erfindung der blauen Leuchtdiode 2014 bestätigt den großen Einfluss, den diese Form der Beleuchtung hat.


Professor, Materials Department, and Co-Director, Solid-State Lighting Center, University of California, Santa Barbara, CA Abstract
Novel semiconductor materials (based on InGaN) have also been used to fabricate blue LEDs and Laser diodes (LDs), which has lead to the realization of many applications such as LED TV displays, Laser based automotive headlights, and now affords high-efficiency white solid-state lighting. Next generation LEDs using novel structures (GaN layers on GaN substrates) grown by specific deposition methods (metal-organic chemical vapor deposition, MOCVD) have shown remarkable external quantum efficiencies greater than 80%. These novel violet LEDs have been combined with three types of phosphors to produce light of exceptional spectral range and quality (Color Rendering Index CRI=95). Even brighter white light sources have been achieved using a novel combination of semiconductor laser diodes and Garnet crystals (YAG:Ce). Laser diode based white light structures now exhibit luminous efficacy greater than 83 lm/Watt. We believe that solid-state laser lighting has the potential to achieve 85% energy efficiency, corresponding to white light luminous efficacy of 255 lm/Watt, which would lead to revolutionary new compact white lighting sources. This work supported in part by the Solid State Lighting and Energy Electronics Center (SSLEEC).
Lighting Designer and Cameraman, Vienna Abstract
The movie BULB FICTION hit the cinemas in 2011. Today it still sparks the interest of people who want to know more about the background of the ban of the bulb that withdrew the options of free choice of a suitable lighting technology from the European customers. The schedule of the ban currently enters its last phase and would have foreseen the ban of class C halogen sources by September 2016. However, this deadline was postponed recently - does the EC finally pedal back?
After bridging a short intermezzo with compact fluorescent tubes along with all the mercury and recycling problems our bright future will be lit by LEDs - this has both positive and negative aspects.
The high fraction of blue light and the lack of deep red and infrared in most commercial retrofit LED bulbs will continue to stress our eyes. Incandescent lamps could be a cheap and healthy remedy in the evening for our tired eyes, and at least therefore the ban of the bulb should be reconsidered.
Head of Research, Bartenbach GmbH, Aldrans Abstract
Lighting technology is in a time of groundbreaking changes that can symbolically be described by two milestones: the progression of the LED from a weakly glowing signal lamp to a highly efficient point light source, and the the discovery of the so called „third receptor“ in the human eye.
LEDs as a high efficient, digital light source offer new technical possibilities for fulfilling special visual, biological and emotional requirements. But how can we exploit these new possibilities really for the benefit of the people, thus creating a sustainable social development rather than needless technology driven gimmicks ?
An overview about LED lighting applications will be given, advantages and and risks will be discussed, and future scenarios presented.
General Manager, LUMITECH Produktion und Entwicklung GmbH, Jennersdorf Abstract
Light significantly influences the well-being of human beings, characterises the individual day and night time rhythm and affects the activity and the ability to concentrate and relax. However, even if this effect is long known the research on the important health-promoting effect of light is rather new and therefore yet not comprehensive "Human Centric Lighting" is the generic term for one of the most promising and highgrowth-rate segments in the lighting branch. A joint study of Lighting Europe, the German Electrical and Electronic Manufacturers’ Association (ZVEI) and A.T. Kearney expects an outstanding growth trajectory for the „Human Centric Lighting“ market. Up to now this has been a quite minor topic from the customers, industry and policy makers side. Its growth is fueled and triggered by the technology transition from conventional light sources to modern multi-performance LED modules. While the high energy efficiency and long durability of LED modules is widely known in the market, little attention has been paid to their advanced light controllability and their potentially excellent light quality.
In the past few years systems have been developed and continuously optimized, along with the advances of LEDs and the specific and proprietary PI-LED technology. The development of the PI-LED technology represents a milestone on the way to biorhythmic lighting. In the proposed talk, we give an overview on the current state of the technology that drives biorhythmic light for „Human Centric Lighting“, and report about specific practical experiences.
Physician; Researcher; CEO, Medical Light Consulting Abstract
Contemporary artificial light sources such as LEDs offer low energy consumption, extended life cycles and optimal integration into digital light control systems. On the other hand, LED for general lighting purposes exhibit a spectral energy distribution and other properties which are far apart from natural light sources and lighting conditions. The dissection of the full spectrum found in non-thermal light sources may turn out to be problematic with regard to the coordinated light sensing via ocular, dermal end cellular light perception pathways in humans. Possible endocrine, visual and chronobiological effects of non-thermal light sources are discussed and proposals for spectral properties of bio-compatible light sources are provided.
Lighting Architect and Researcher, Designs4People, Gdansk and Zurich; Lecturer, Architectural Lighting Design, Hochschule Wismar Abstract
Today our cities are being used 24/7 and are flooded with artificial lighting. Consequently, NASA outer space photographs show that there are not many dark areas left on the earth’s surface, which has an enormous impact on the visibility of the night sky. Littering of this type has a destructive impact on fauna and flora, which have naturally adjusted to life during nighttime; it can also have adverse effects on human health. This lecture is going to look into the causes of light pollution, its impact and how it can be mitigated based on good and bad examples of realised lighting projects in Europe and Asia. It also reveals that, despite the limitations such as the effect of light pollution on human health and ecosystem integrity noted in studies into the impact of artificial illumination on urban and natural environments, electric lighting can be designed in such a way that its negative consequences for the night-time environment can be reduced.
Director, MATERIALS - Institute for Surface Technologies and Photonics, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Weiz Chair
Innovation Manager, MATERIALS - Institute for Surface Technologies and Photonics, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Weiz Coordination


Professor, Materials Department, and Co-Director, Solid-State Lighting Center, University of California, Santa Barbara, CA

1984 Materials and Metallurgical Engineering, University of Arizona, Tucson, Arizona
1984-1988 Research Assistant, University of Southern California Compound Semiconductor, Laboratory
1986 Materials Science, University of Southern California, Los Angeles, California (Honors)
1988-1991 Research and Development Engineer, Hewlett-Packard Optoelectrics, San Jose, CA
1988 Electrical Engineering, University of Southern California, Los Angeles, California
1991-1994 Assistant Professor, University of California, Santa Barbara, Materials Department
1998-1999 Associate Professor, University of California, Santa Barbara, Materials Department
since 1998 Professor, University of California, Santa Barbara, Materials Department
2002-2007 Executive Director, Solid State Lighting and Display Center
2007 Co-Founder, Soraa Inc.
since 2007 Executive Director, Solid State Lighting and Energy Center


Lighting Designer and Cameraman, Vienna

1974-1979 Hochschule für Musik und Darstellende Kunst, Abt. Film und Fernsehen in Wien, Education in Cinematography
1975-1982 Essistant Cameraman (freelance)
1983-1995 Cinematographer (freelance), focus on documentaries
1995-2001 Cinematographer (freelance), focus on TV-movies and -series
2007 Education in Lighting Design, Bartenbach Academy, Aldrans
since 2008 Lighting Designer (freelance)

Mag.rer.nat Wilfried POHL

Head of Research, Bartenbach GmbH, Aldrans

 Studied mathematics and physics
1985 started at Bartenbach GmbH
  visual perception and light and health
 Leader of various international planning and R&D-projects in these fields, lecturer at different universities.
since 1998 Member of Managing Board and Director Research, dealing with R&D for day- and artificial lighting, including

DI Dr. Stefan TASCH

General Manager, LUMITECH Produktion und Entwicklung GmbH, Jennersdorf

1997 PhD in Physics from University of Technology in Graz (including Scientific Work at the Case Western Research University in Cleveland, University in Potsdam and UCSB in Santa Barbara)
1997-2000 Co-Founder and Managing Director, Lumitech Produktion und Entwicklung GmbH
2001-2010 Co-Founder and Managing Director, Tridonic Jennersdorf GmbH (JV Lumitech and Tridonic)
2005-2010 Co-Founder and President, Lexedis Lighting GmbH (JV Zumtobel and Toyoda Gosei)
since 2010 CEO Lumitech Holding GmbH and Managing Director Lumitech Produktion und Entwicklung GmbH

Alexander WUNSCH

Physician; Researcher; CEO, Medical Light Consulting

1982-1989 Studies human medicine in Kiel, Giessen and Heidelberg, Germany
since 1988 Development and patenting of medical devices for biophysical stimulation
since 1995 Development of detection devices for electromagnetic radiation
1998 Full physician (Licence to practice medicine, Regional Counsil Stuttgart, Germany)
since 1999 Settled in private medical practice in Heidelberg, Germany
since 2003 Development of light modulation meters for flicker detection
since 2008 Associate lecturer for "Light & Health" at Wismar University of Applied Sciences
since 2010 CEO, Medical Light Consulting.

Dr. Eng. Arch. Karolina M. ZIELINSKA-DABKOWSKA

Lighting Architect and Researcher, Designs4People, Gdansk and Zurich; Lecturer, Architectural Lighting Design, Hochschule Wismar

2004-2005 Fisher Marantz Stone Partners, New York/USA, Junior Lighting Designer
2005-2007 Speirs and Major Lighting Architects, London/UK, Senior Designer / Project Manager
2008-2012 Light Bureau Limited, London/UK, Associate / Team Leader
since 2012 Designs-4-People [d4p], Gdansk/PL, Principal Lighting Designer / Founder
2013 Reflexion AG, Zürich/CH, Senior Lighting Designer / Team Leader
2014-2015 Lecturer, Hochschule Wismar, University of Technology, Business and Design Wismar/D Faculty of Architecture and Design, Architectural Lighting Design

Dipl.-Ing. Dr. Paul HARTMANN

Director, MATERIALS - Institute for Surface Technologies and Photonics, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Weiz

1985-1991 Master in Technical Physics at Technical University Graz, Austria
1991-1995 Ph.D. at University of Graz, Institute of Experimental Physics and AVL List Medical Instruments
1994-2000 R&D-Scientist at AVL List Medical Instruments, Graz, Austria
2000-2005 R&D-Scientist and Product Development Manager at Roche Diagnostics, Graz, Austria
2005-2008 Head of R&D, Tridonic Optoelectronics, Jennersdorf, Austria
2008-2010 Head of Research and Technology, Zumtobel LED Division and Ledon Lighting Jennersdorf, Austria


Timetable einblenden


10:00 - 12:30TechnologiebrunchSocial
13:00 - 13:10Eröffnung der Alpbacher Technologiegespräche 2015Plenary
13:10 - 14:00FTI-TalkPlenary
14:00 - 15:30Zukünftiges Leben mit der MaschinePlenary
16:00 - 17:30Cyber Physikalische SystemePlenary
19:45 - 21:15Regional Debate Central Eastern EuropePlenary
21:15 - 23:30AbendempfangSocial
21:15 - 23:30KarriereloungeSocial


09:00 - 10:30BioökonomiePlenary
09:00 - 18:00Junior Alpbach - Wissenschaft und Technologie für junge MenschenBreakout
09:00 - 15:00Ö1 Kinderuni Alpbach - Wissenschaft und Technologie für KinderBreakout
10:50 - 12:15Complexity SciencePlenary
12:15 - 13:00Imbiss für die TeilnehmerInnen der Breakout SessionsSocial
13:00 - 18:00Breakout Session 01: 2015: Das Ende der EnergiewendeBreakout
13:00 - 18:00Breakout Session 02: Bio-Economy in Action: Nationale Bioökonomie-Strategien im VergleichBreakout
13:00 - 18:00Breakout Session 03: Human Enhancement Technologien: Verstärkung oder Reduktion von UngleichheitBreakout
13:00 - 18:00Breakout Session 04: Forschungsförderung zwischen Risiko, Kreativität und MainstreamBreakout
13:00 - 18:00Breakout Session 05: Marktumbrüche: Herausforderung und Chance für Innovation?Breakout
13:00 - 18:00Breakout Session 06: Entrepreneurship: Was kann das Wissenschaftssystem beitragen?Breakout
13:00 - 18:00Breakout Session 07: Spiele der UnGleichheitBreakout
13:00 - 18:00Breakout Session 08: Physisches Internet: Überragende Vision für Logistik und MobilitätBreakout
13:00 - 18:00Breakout Session 09: Dynamik durch Heterogenität: Wie Wirtschaft und Forschung von Unterschieden profitierenBreakout
13:00 - 18:00Breakout Session 10: Energiewende: Gleiches Ziel - ungleicher WegBreakout
13:00 - 18:00Breakout Session 11: Wasserstoff und Brennstoffzelle: Kommt der Marktdurchbruch?Breakout
13:00 - 18:00Breakout Session 12: Leuchtende Zukunft? Herausforderungen und Chancen der LED-BeleuchtungBreakout
13:00 - 18:00Breakout Session 13: Wahrheit und Wirklichkeit: Zur Bedeutung von Modellen in Ökonomie, Wissenschaft und PhilosophieBreakout
13:00 - 18:00Breakout Session 14: Virtuelles Lernen: Chancen(Un)Gleichheit im Bildungsbereich?Breakout
20:00 - 21:30Urban Innovators Challenge - Start Up Your CompanyPartner


09:00 - 10:30Das Media Lab des MIT zu Gast bei den TechnologiegesprächenPlenary
10:30 - 11:30UnGleichheit: Die neue SeidenstraßePlenary
11:50 - 13:15Kunst, Design und Architektur als Labor der Digitalen ModernePlenary
13:15 - 13:30Abschluss-Statement der Alpbacher TechnologiegesprächePlenary
13:30 - 14:00Imbiss zum Abschluss der VeranstaltungSocial