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portada Advanced Light Sources for Premium Worklamp Systems (en Inglés)
Formato
Libro Físico
Editorial
Idioma
Inglés
N° páginas
94
Encuadernación
Tapa Blanda
Dimensiones
21x14.8x0.6 cm
Peso
0.13 kg.
ISBN13
9783346574091

Advanced Light Sources for Premium Worklamp Systems (en Inglés)

Albert Krammer (Autor) · Grin Verlag · Tapa Blanda

Advanced Light Sources for Premium Worklamp Systems (en Inglés) - Krammer, Albert

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Reseña del libro "Advanced Light Sources for Premium Worklamp Systems (en Inglés)"

Master's Thesis from the year 2016 in the subject Electrotechnology, grade: 1,0, University of Linz (Technisch- Naturwissenschaftliche Fakultät), course: Optoelektronik, language: English, abstract: The present work is concerned with the study and feasibility analysis of various options for generating white light for semiconductor based work light systems. Analyzed were phosphor converted (PC) systems (state of the art) and a system for RGB color mixing (generation of white light via red, green and blue light sources). Specific parameters for the evaluation are the color temperature and color rendering index (CRI). An LED and a laser diode concept for the RGB white light generation were developed. As a reference, existing systems based on phosphor conversion were evaluated. In the literature, options for optimizing white light generation via laser diodes by 4, 5 or 6 laser diodes for color rendering indices of > 80 are described. The present investigation uses only three laser diodes, which as a result produces a CRI of up to 45. Compared to phosphor- converted modules with blue laser diodes with a CRI of 71, this is an improvement worthy value. Furthermore, the problems and obstacles which can prevent a possible industrialization are analyzed in detail. For a laser-based system, these are the strong temperature dependence and the difficulty of bringing homogeneous white light onto the road. Furthermore I introduce a new method (TM30) for calculating new color reproduction criteria and I compare it with the CRI method. This new method, known from the solid state lighting, shows an appreciation of RGB white light sources. The presented RGB LED prototype achieved with the TM30 measurement method better parameters by an average of 2% than a comparable PC system. In summary, the present work is a comparison of both technologies (PC and RGB). Generation of white light with RGB LEDs shows great potential, particularly in special applications (applications requiring varia

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