Abstract: | |
Bright white light sources are of significant importance for automotive front lighting systems. Todays upper class vehicles mainly use HID or LED as light source. As a further step in this development laser diode based systems offer high luminance, efficiency and allow the realization of new styling concepts and new dynamic lighting functions. These white laser diode systems can either be realized by mixing different spectral sources or by combining diodes with specific phosphors. Based on the approach of generating light using a laser and remote phosphor, lighting modules are manufactured. Four blue laser diodes (450 nm) are used to activate a phosphor coating and thus to achieve white light. A segmented paraboloid reflector generates the desired light distribution for an additional car headlamp. We use high speed milling and selective laser melting to build the reflector system for this lighting module. We compare the spectral reflection grade of these materials. Furthermore the generated modules are analyzed regarding their efficiency and light distribution. The use of Rapid Prototyping technologies allows an early validation of the chosen concept and is supposed to reduce cost and time in the product development process significantly. Therefor we discuss costs and times of the applied manufacturing technologies.
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License of this version: | Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. |
Publication type: | BookPart |
Publishing status: | publishedVersion |
Publication date: | 2015 |
Keywords english: | Automotive Lighting, Laser Activated Remote Phosphor, Laser Light Source, Rapid Prototypingof Optical Components, Selective Laser Melting, 3D printers, Automobile manufacture, Diodes, Efficiency, Headlights, Light emission, Light sources, Lighting, Luminance, Melting, Milling (machining), Phosphors, Product development, Rapid prototyping, Reflection, Semiconductor lasers, Solid state devices, Automotive lighting, Laser light sources, Optical components, Remote phosphors, Selective laser melting, Light emitting diodes |
DDC: | 530 | Physik |
Controlled keywords(GND): | Konferenzschrift |
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