Angular and spatial color mixing using mixing rods with the geometry of a chaotic-dispersive billiard system
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Theresa S. Bonenberger
Theresa S. Bonenberger received her M.Sc. degree in Optical System Technologies from the University of Applied Sciences Ravensburg-Weingarten. After her studies she worked as a research assistant in the collaborative research center ZAFH LED-Oasysat the University of Applied Sciences Ravensburg-Weingarten and achieved her PhD in the faculty of Electrical Engineering of the Karlsruhe Institute of Technology in Germany, which she finished at the end of 2015. Since February 2016 she has been working at Airbus Defence and Space.
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Jörg Baumgart
Jörg Baumgart received a Dipl.-Ing. (FH) degree in Physics from the Rhein Main University of Applied Sciences in Rüsselheim and a Dipl.-Ing. (TU) degree in Mechanical Engineering from the Technical University of Ilmenau. This was also where he received his Dr-.Ing.. Later on he worked as an optical engineer and optical designer for Diehl BGT Defence in Überlingen. Now he is Professor for Technical Optics at the University of Applied Sciences in Ravensburg Weingarten. He is Vice-Dean of the Faculty for Technology and Management and coordinates the collaborative research center ZAFH LED-Oasys.
Cornelius Neumann studied Physics and Philosophy at the University of Bielefeld, Germany. After his PhD, he worked for the automotive supplier Hella in the advanced development for Automotive Lighting. During his time at Hella he was responsible for signal lighting, LED application and acted as a director of the L-LAB, a laboratory for lighting and mechatronics in public private partnership with the University of Paderborn, Germany. In 2009, he became Professor for Optical Technologies in Automotive and General Lighting and one of the two directors of the Light Technology Institute at the Karlsruhe Institute of Technology, Germany.
Abstract
For mixing light from different colored LEDs, an optical color mixing system is required to avoid colored shadows and color fringes. Concerning the different color mixing systems, mixing rods are widespread as they provide very good spatial color mixing with high efficiency. The essential disadvantage of mixing rods, so far, is the lack of angular color mixing. The solution presented in this publication is the application of a chaotic-dispersive billiard’s geometry on the cross section of the mixing rod. To show both the spatial and the angular mixing properties of a square and a chaotic-dispersive mixing rod, simulations generated by the raytracing software ASAP are provided. All results are validated with prototype measurements.
About the authors
Theresa S. Bonenberger received her M.Sc. degree in Optical System Technologies from the University of Applied Sciences Ravensburg-Weingarten. After her studies she worked as a research assistant in the collaborative research center ZAFH LED-Oasysat the University of Applied Sciences Ravensburg-Weingarten and achieved her PhD in the faculty of Electrical Engineering of the Karlsruhe Institute of Technology in Germany, which she finished at the end of 2015. Since February 2016 she has been working at Airbus Defence and Space.
Jörg Baumgart received a Dipl.-Ing. (FH) degree in Physics from the Rhein Main University of Applied Sciences in Rüsselheim and a Dipl.-Ing. (TU) degree in Mechanical Engineering from the Technical University of Ilmenau. This was also where he received his Dr-.Ing.. Later on he worked as an optical engineer and optical designer for Diehl BGT Defence in Überlingen. Now he is Professor for Technical Optics at the University of Applied Sciences in Ravensburg Weingarten. He is Vice-Dean of the Faculty for Technology and Management and coordinates the collaborative research center ZAFH LED-Oasys.
Cornelius Neumann studied Physics and Philosophy at the University of Bielefeld, Germany. After his PhD, he worked for the automotive supplier Hella in the advanced development for Automotive Lighting. During his time at Hella he was responsible for signal lighting, LED application and acted as a director of the L-LAB, a laboratory for lighting and mechatronics in public private partnership with the University of Paderborn, Germany. In 2009, he became Professor for Optical Technologies in Automotive and General Lighting and one of the two directors of the Light Technology Institute at the Karlsruhe Institute of Technology, Germany.
Acknowledgments
This work has been conducted within the Research Association ‘Zentrum für angewandte Forschung an Hochschulen’ (ZAFH LED OASYS). The authors gratefully acknowledge the research grants of the state Baden-Württemberg and the European Union, European Regional Development Fund.
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©2016 THOSS Media & De Gruyter
Artikel in diesem Heft
- Cover and Frontmatter
- Community
- News from the European Optical Society
- News
- Conference Notes
- Conference Calendar
- Topical issue: Illumination optics
- Editorial
- Development in illumination optics
- Review Articles
- High-resolution headlamp
- Signal lights – designed light for rear lamps and new upcoming technologies: innovations in automotive lighting
- Free-form illumination optics
- Review of freeform TIR collimator design methods
- Research Articles
- High-resolution vehicle headlamps: technologies and scanning prototype
- Angular and spatial color mixing using mixing rods with the geometry of a chaotic-dispersive billiard system
- Research Articles
- Dual-mode spectral imaging system employing a focus variable lens
- A holographic method for optimisation of laser-based production processes
Artikel in diesem Heft
- Cover and Frontmatter
- Community
- News from the European Optical Society
- News
- Conference Notes
- Conference Calendar
- Topical issue: Illumination optics
- Editorial
- Development in illumination optics
- Review Articles
- High-resolution headlamp
- Signal lights – designed light for rear lamps and new upcoming technologies: innovations in automotive lighting
- Free-form illumination optics
- Review of freeform TIR collimator design methods
- Research Articles
- High-resolution vehicle headlamps: technologies and scanning prototype
- Angular and spatial color mixing using mixing rods with the geometry of a chaotic-dispersive billiard system
- Research Articles
- Dual-mode spectral imaging system employing a focus variable lens
- A holographic method for optimisation of laser-based production processes
