Opto-thermal study of cooling strategies for high-luminance white-light solid-state sources

António Correia; Peter Hanselaer; Youri Meuret

doi:10.1117/12.2227510

17 June 2016 Opto-thermal study of cooling strategies for high-luminance white-light solid-state sources

António Correia, Peter Hanselaer, Youri Meuret

Proceedings Volume 9889, Optical Modelling and Design IV; 98890P (2016) https://doi.org/10.1117/12.2227510
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Solid-state sources have become ubiquitous is many lighting applications. For general lighting, phosphors are typically employed to produce white light from the narrowband light emitted from solid-state sources. As the optical output power from solid-state sources keeps increasing, increasingly higher luminance can be obtained, which, unfortunately, also increases the phosphor's temperature. These materials' colour conversion potential, encoded by the quantum yield, has complex dependencies with temperature. To obtain an accurate assessment of the performance of a high-luminance white light source configuration based on individual solid-state sources, it is imperative to accurately model the temperature distribution inside the phosphor material and consider the effect of temperature on the quantum yield of the phosphor. In addition, the feedback of the varying quantum yield on the generated heat inside the phosphor should also be considered. An opto-thermal framework has been previously proposed to accurately simulate the opto-thermal effects in phosphors when designing lighting systems. In this paper, this framework is applied to a novel optical configuration to investigate thermal bottlenecks and test cooling strategies to avoid them. For the specific configuration tested, using an active cooling strategy and concentrating the laser light on the phosphor region with the best thermal dissipation proved to be the best solutions.

Citation Download Citation

António Correia, Peter Hanselaer, and Youri Meuret "Opto-thermal study of cooling strategies for high-luminance white-light solid-state sources", Proc. SPIE 9889, Optical Modelling and Design IV, 98890P (17 June 2016); https://doi.org/10.1117/12.2227510

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