Abstract

Light-emitting diodes (LEDs) have numerous advantages, such as long lifetime, large color gamut, small size, and absence of mercury vapor. In recent years, there has been recognition that high brightness LED could be an alternative light source for projection display application. In this work, dielectric compound parabolic concentrators (CPCs) were designed and optimized for multiple-LED array package for projection display application. The performance of rectangular CPC was studied and compared to theoretical simulations. More than 85% light, emitted by multiple-LED arrays, can be collected by the CPC and transmitted within the designed angle. A rectangular CPC was fabricated as the collector and collimator. The CPC was integrated with multiple-LED array package, and RGB high brightness LED modules with rectangular CPCs were fabricated and their performances were characterized.

© 2011 IEEE

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  1. M. Krames, O. Shchekin, R. Mueller-Mach, G. Mueller, L. Zhou, G. Harbers, M. Craford, "Status and future of high-power light-emitting diodes for solid-state lighting," Journal of Display Technology 3, 160-175 (2007).
  2. M. H. Keuper, G. Harbers, S. Paolini, "26.1: RGB LED illuminator for pocket-sized projectors," SID Symp. Dig. Tech. Papers (2004) pp. 943-945.
  3. H. Murat, D. Cuypers, H. De Smet, "Design of new collection systems for multi LED light engines," Photonics in Multimedia (2006) pp. 619604-619611.
  4. E. Geissler, "Meeting the challenges of developing LED-based projection displays," Photonics in Multimedia (2006) pp. 619601-619612.
  5. M. H. Keuper, S. Paolini, G. Harbers, P. Tsang, "P-126: Ultra-compact LED based image projector for portable applications," SID Symp. Dig. Tech. Papers (2003) pp. 713-715.
  6. H. Zou, A. Schleicher, J. Dean, "Single-panel LCOS color projector with LED light sources," SID Symp. Dig. Tech. Papers (2005) pp. 1698-1701.
  7. H. Ries, A. Rabl, "Edge-ray principle of nonimaging optics," J. Opt. Soc. Amer. – Optics Image Science and Vision 11, 2627-2632 (1994).
  8. J. Chaves, Introduction to Nonimaging Optics (CRC, 2008) pp. 8-37.
  9. T. J. Brukilacchio, C. DeMilo, "Beyond the limitations of today's LED packages: Optimizing high-brightness LED performance by a comprehensive systems design approach," Light-Emitting Diodes: Res., Manuf., and Appl. VIII (2004) pp. 161-172.
  10. T. Brukilacchio, C. Demilo, Light emitting diode projection system U.S. Patent Appl. 2007/0206390 A1 Filed: Jan. 19, 2007.

2007 (1)

M. Krames, O. Shchekin, R. Mueller-Mach, G. Mueller, L. Zhou, G. Harbers, M. Craford, "Status and future of high-power light-emitting diodes for solid-state lighting," Journal of Display Technology 3, 160-175 (2007).

1994 (1)

H. Ries, A. Rabl, "Edge-ray principle of nonimaging optics," J. Opt. Soc. Amer. – Optics Image Science and Vision 11, 2627-2632 (1994).

J. Opt. Soc. Amer. – Optics Image Science and Vision (1)

H. Ries, A. Rabl, "Edge-ray principle of nonimaging optics," J. Opt. Soc. Amer. – Optics Image Science and Vision 11, 2627-2632 (1994).

Journal of Display Technology (1)

M. Krames, O. Shchekin, R. Mueller-Mach, G. Mueller, L. Zhou, G. Harbers, M. Craford, "Status and future of high-power light-emitting diodes for solid-state lighting," Journal of Display Technology 3, 160-175 (2007).

Other (8)

M. H. Keuper, G. Harbers, S. Paolini, "26.1: RGB LED illuminator for pocket-sized projectors," SID Symp. Dig. Tech. Papers (2004) pp. 943-945.

H. Murat, D. Cuypers, H. De Smet, "Design of new collection systems for multi LED light engines," Photonics in Multimedia (2006) pp. 619604-619611.

E. Geissler, "Meeting the challenges of developing LED-based projection displays," Photonics in Multimedia (2006) pp. 619601-619612.

M. H. Keuper, S. Paolini, G. Harbers, P. Tsang, "P-126: Ultra-compact LED based image projector for portable applications," SID Symp. Dig. Tech. Papers (2003) pp. 713-715.

H. Zou, A. Schleicher, J. Dean, "Single-panel LCOS color projector with LED light sources," SID Symp. Dig. Tech. Papers (2005) pp. 1698-1701.

J. Chaves, Introduction to Nonimaging Optics (CRC, 2008) pp. 8-37.

T. J. Brukilacchio, C. DeMilo, "Beyond the limitations of today's LED packages: Optimizing high-brightness LED performance by a comprehensive systems design approach," Light-Emitting Diodes: Res., Manuf., and Appl. VIII (2004) pp. 161-172.

T. Brukilacchio, C. Demilo, Light emitting diode projection system U.S. Patent Appl. 2007/0206390 A1 Filed: Jan. 19, 2007.

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