Abstract

Algorithms for selecting LEDs to imitate a group of daylight spectra, instead of fixed-spectrum lighting, are based on minimizing two indices. The first index related to the LEDs only is minimized for determining LED candidates. Minimizing the second index obtained by applying the daylight spectra to the candidates achieves a minimax solution. The sum of the second indices of the daylight spectra can be well approximated by that of the average spectrum of the daylight spectra and is treated as a target spectrum for the LED selection. A pruning process is followed to delete redundant LEDs.

© 2008 Optical Society of America

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2007

M. Liu, B. Rong, and H. W. M. Salemink, “Evaluation of LED application in general lighting,” Opt. Eng. 46, 074002(2007).

2005

H. Y. Chou, T. H. Hsu, and T. H. Yang, “Effective method for improving illuminating properties of white-light LEDs,” Proc. SPIE 5739, 33-41 (2005).

Y. Ohno, “Spectral design considerations for white LED color rendering,” Opt. Eng. 44, 1-9 (2005).

J. L. Nieves, E. M. Valero, S. M. C. Nascimento, J. Hernández-Andrés, and J. Romero, “Multispectral synthesis of daylight using a commercial digital CCD camera,” Appl. Opt. 44, 5696-5703 (2005).
[CrossRef]

2004

J. Y. Tsao, “Solid-state lighting: lamps, chips, and materials for tomorrow,” IEEE Circuits Devices Mag. 20(3), 28-37(2004).

2003

D. G. Pelka and K. Patel, “An overview of LED applications for general illumination,” Proc. SPIE 5186, 15-26(2003).

H. Ries, I. Leike, and J. Muschaweck, “Mixing colored LED sources,” Proc. SPIE 5186, 27-32 (2003).

2002

D. A. Steigerwald, J. C. Bhat, and D. Collins, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8, 310-320 (2002).

F. J. P. Schuurmans and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8333-338 (2002).

1997

1972

Bhat, J. C.

D. A. Steigerwald, J. C. Bhat, and D. Collins, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8, 310-320 (2002).

Blake, R.

R. Sekuler and R. Blake, Perception, 3rd ed., (McGraw Hill, 1994), p. 195.

Chou, H. Y.

H. Y. Chou, T. H. Hsu, and T. H. Yang, “Effective method for improving illuminating properties of white-light LEDs,” Proc. SPIE 5739, 33-41 (2005).

Collins, D.

D. A. Steigerwald, J. C. Bhat, and D. Collins, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8, 310-320 (2002).

García-Beltrán, A.

Hernández-Andrés, J.

Hsu, T. H.

H. Y. Chou, T. H. Hsu, and T. H. Yang, “Effective method for improving illuminating properties of white-light LEDs,” Proc. SPIE 5739, 33-41 (2005).

Leike, I.

H. Ries, I. Leike, and J. Muschaweck, “Mixing colored LED sources,” Proc. SPIE 5186, 27-32 (2003).

Liu, M.

M. Liu, B. Rong, and H. W. M. Salemink, “Evaluation of LED application in general lighting,” Opt. Eng. 46, 074002(2007).

Meyer, C. D.

C. D. Meyer, Matrix Analysis and Applied Linear Algebra (Society for Industrial and Applied Mathematics, 2000).

Muschaweck, J.

H. Ries, I. Leike, and J. Muschaweck, “Mixing colored LED sources,” Proc. SPIE 5186, 27-32 (2003).

Nascimento, S. M. C.

Nieves, J. L.

Ohno, Y.

Y. Ohno, “Spectral design considerations for white LED color rendering,” Opt. Eng. 44, 1-9 (2005).

Ohta, N.

Papoulis, A.

A. Papoulis, Probability, Random Variables, and Stochastic Processes 2nd ed. (McGraw-Hill, 1984), p. 167.

Pashley, M. D.

F. J. P. Schuurmans and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8333-338 (2002).

Patel, K.

D. G. Pelka and K. Patel, “An overview of LED applications for general illumination,” Proc. SPIE 5186, 15-26(2003).

Pelka, D. G.

D. G. Pelka and K. Patel, “An overview of LED applications for general illumination,” Proc. SPIE 5186, 15-26(2003).

Ries, H.

H. Ries, I. Leike, and J. Muschaweck, “Mixing colored LED sources,” Proc. SPIE 5186, 27-32 (2003).

Romero, J.

Rong, B.

M. Liu, B. Rong, and H. W. M. Salemink, “Evaluation of LED application in general lighting,” Opt. Eng. 46, 074002(2007).

Salemink, H. W. M.

M. Liu, B. Rong, and H. W. M. Salemink, “Evaluation of LED application in general lighting,” Opt. Eng. 46, 074002(2007).

Schuurmans, F. J. P.

F. J. P. Schuurmans and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8333-338 (2002).

Sekuler, R.

R. Sekuler and R. Blake, Perception, 3rd ed., (McGraw Hill, 1994), p. 195.

Steigerwald, D. A.

D. A. Steigerwald, J. C. Bhat, and D. Collins, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8, 310-320 (2002).

Tsao, J. Y.

J. Y. Tsao, “Solid-state lighting: lamps, chips, and materials for tomorrow,” IEEE Circuits Devices Mag. 20(3), 28-37(2004).

Urabe, H.

Valero, E. M.

Watkins, D. S.

D. S. Watkins, Fundamentals of Matrix Computations (Wiley, 1991).

Yang, T. H.

H. Y. Chou, T. H. Hsu, and T. H. Yang, “Effective method for improving illuminating properties of white-light LEDs,” Proc. SPIE 5739, 33-41 (2005).

Appl. Opt.

IEEE Circuits Devices Mag.

J. Y. Tsao, “Solid-state lighting: lamps, chips, and materials for tomorrow,” IEEE Circuits Devices Mag. 20(3), 28-37(2004).

IEEE J. Sel. Top. Quantum Electron.

F. J. P. Schuurmans and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8333-338 (2002).

D. A. Steigerwald, J. C. Bhat, and D. Collins, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8, 310-320 (2002).

J. Opt. Soc. Am. A

Opt. Eng.

Y. Ohno, “Spectral design considerations for white LED color rendering,” Opt. Eng. 44, 1-9 (2005).

M. Liu, B. Rong, and H. W. M. Salemink, “Evaluation of LED application in general lighting,” Opt. Eng. 46, 074002(2007).

Proc. SPIE

H. Ries, I. Leike, and J. Muschaweck, “Mixing colored LED sources,” Proc. SPIE 5186, 27-32 (2003).

D. G. Pelka and K. Patel, “An overview of LED applications for general illumination,” Proc. SPIE 5186, 15-26(2003).

H. Y. Chou, T. H. Hsu, and T. H. Yang, “Effective method for improving illuminating properties of white-light LEDs,” Proc. SPIE 5739, 33-41 (2005).

Other

A. Papoulis, Probability, Random Variables, and Stochastic Processes 2nd ed. (McGraw-Hill, 1984), p. 167.

Nichia, “LED products,” http://www.nichia.com/cn/product/led.html.

Jiann Wa, “LED products,” http://www.jiannwa.com/con-1.htm.

Unity Opto, “LED products,” http://www.unityopto.com.tw/products/index.htm.

Laster Tech, “LED products,” http://www.lastertech.com/Tchinese/s3_2.htm.

R. Sekuler and R. Blake, Perception, 3rd ed., (McGraw Hill, 1994), p. 195.

C. D. Meyer, Matrix Analysis and Applied Linear Algebra (Society for Industrial and Applied Mathematics, 2000).

D. S. Watkins, Fundamentals of Matrix Computations (Wiley, 1991).

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