Rapid prototyping of reflectors for vehicle lighting using laser activated remote phosphor

Roland Lachmayer; Gerolf Kloppenburg; Alexander G. Wolf

doi:10.1117/12.2078791

9 March 2015 Rapid prototyping of reflectors for vehicle lighting using laser activated remote phosphor

Roland Lachmayer, Gerolf Kloppenburg, Alexander G. Wolf

Proceedings Volume 9383, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIX; 938305 (2015) https://doi.org/10.1117/12.2078791
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Bright white light sources are of significant importance for automotive front lighting systems. Today’s 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.

Citation Download Citation

Roland Lachmayer, Gerolf Kloppenburg, and Alexander G. Wolf "Rapid prototyping of reflectors for vehicle lighting using laser activated remote phosphor", Proc. SPIE 9383, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIX, 938305 (9 March 2015); https://doi.org/10.1117/12.2078791

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available