Enhancing the luminance of converted green LEDs in LED projectors
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Benjamin Schulz
Benjamin Schulz received his MEng degree in Electrical and Microsystems Engineering from the Regensburg University of Applied Sciences after he had finished a dual study program in cooperation with OSRAM Opto Semiconductors. In 2015, he started his PhD thesis at the Light Technology Institute at the Karlsruhe Institute of Technology (KIT). Since 2012, he is employed at OSRAM Opto Semiconductors in the Visible LED Applications Engineering department and with a focus on LED-based projection systems.
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Cornelius Neumann
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
High-power light-emitting diodes have successfully found their way into projection applications. Owing to their long lifetime, small size, and easy electrical drive, they are getting more and more attractive for use in various kinds of projectors. The challenge to achieve higher brightness levels lies in the étendue limitation, which is determined mainly by the size of the microdisplay inside the projection system. In this paper, a new approach is presented to increase the output flux of LED-based projectors by enhancing the luminance of converted green LEDs.
About the authors
Benjamin Schulz received his MEng degree in Electrical and Microsystems Engineering from the Regensburg University of Applied Sciences after he had finished a dual study program in cooperation with OSRAM Opto Semiconductors. In 2015, he started his PhD thesis at the Light Technology Institute at the Karlsruhe Institute of Technology (KIT). Since 2012, he is employed at OSRAM Opto Semiconductors in the Visible LED Applications Engineering department and with a focus on LED-based projection systems.
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.
References
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©2016 THOSS Media & De Gruyter
Artikel in diesem Heft
- Cover and Frontmatter
- Editorial
- Reviewer recognition and new plans for 2017
- Community
- Conference Notes
- Conference Calendar
- News from the European Optical Society (EOS)
- Views
- Four laser companies to exceed $1 billion revenue in 2016
- Research Articles
- Enhancing the luminance of converted green LEDs in LED projectors
- A unified homogeneity criterion for rear lamps
- Design of an ultraviolet projection lens by using a global search algorithm and computer optimization
- Optical lens-shift design for increasing spatial resolution of 3D ToF cameras
- Dynamic phase measurements based on a polarization Michelson interferometer employing a pixelated polarization camera
Artikel in diesem Heft
- Cover and Frontmatter
- Editorial
- Reviewer recognition and new plans for 2017
- Community
- Conference Notes
- Conference Calendar
- News from the European Optical Society (EOS)
- Views
- Four laser companies to exceed $1 billion revenue in 2016
- Research Articles
- Enhancing the luminance of converted green LEDs in LED projectors
- A unified homogeneity criterion for rear lamps
- Design of an ultraviolet projection lens by using a global search algorithm and computer optimization
- Optical lens-shift design for increasing spatial resolution of 3D ToF cameras
- Dynamic phase measurements based on a polarization Michelson interferometer employing a pixelated polarization camera
