Improving the color uniformity of a LED-array based illumination system with a tailored light distribution

Youri Meuret; Lieve Lanoye; Filip Bruyneel; Hugo Thienpont

doi:10.1117/12.825255

20 August 2009 Improving the color uniformity of a LED-array based illumination system with a tailored light distribution

Youri Meuret, Lieve Lanoye, Filip Bruyneel, Hugo Thienpont

Author Affiliations +

Proceedings Volume 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI; 74230N (2009) https://doi.org/10.1117/12.825255
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

We designed a compact illumination system based on a linear array of single package RGB LEDs which creates a tailored light distribution. Realistic optical simulations in Advanced Systems Analysis Program (ASAP ®) and a statistical approach in Matlab ® , are used to investigate the color uniformity. A clear trade-off between the capability to tailor the obtained light distribution and the color uniformity is found. Two methods to improve the color uniformity while maintaining the light tailoring capabilities of the optical design, are investigated: mixing the LED orientations and using anisotropic scattering properties. The aimed application is an illumination module for Ambilight ® television sets, although the investigated methods can be applied to other LED based illumination systems.

Citation Download Citation

Youri Meuret, Lieve Lanoye, Filip Bruyneel, and Hugo Thienpont "Improving the color uniformity of a LED-array based illumination system with a tailored light distribution", Proc. SPIE 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI, 74230N (20 August 2009); https://doi.org/10.1117/12.825255

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