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P. Zhou, W. Lu, Y. X. Lin, Z. R. Zheng, H. F. Li, and P. F. Gu, “Fly eye lens array used in liquid crystal projection display with high light efficiency,” Acta Opt. Sin. 24, 587-591 (2004), in Chinese.

Y. He, M. Rea, A. Biemlan, and J. Bullough, “Evaluating light source efficacy under mesopic conditions using reaction times,” J. Illum. Eng. Soc. 26, 125--138 (1997).

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P. Zhou, W. Lu, Y. X. Lin, Z. R. Zheng, H. F. Li, and P. F. Gu, “Fly eye lens array used in liquid crystal projection display with high light efficiency,” Acta Opt. Sin. 24, 587-591 (2004), in Chinese.

P. Zhou, W. Lu, Y. X. Lin, Z. R. Zheng, H. F. Li, and P. F. Gu, “Fly eye lens array used in liquid crystal projection display with high light efficiency,” Acta Opt. Sin. 24, 587-591 (2004), in Chinese.

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P. Zhou, W. Lu, Y. X. Lin, Z. R. Zheng, H. F. Li, and P. F. Gu, “Fly eye lens array used in liquid crystal projection display with high light efficiency,” Acta Opt. Sin. 24, 587-591 (2004), in Chinese.

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P. Zhou, W. Lu, Y. X. Lin, Z. R. Zheng, H. F. Li, and P. F. Gu, “Fly eye lens array used in liquid crystal projection display with high light efficiency,” Acta Opt. Sin. 24, 587-591 (2004), in Chinese.

Y. He, M. Rea, A. Biemlan, and J. Bullough, “Evaluating light source efficacy under mesopic conditions using reaction times,” J. Illum. Eng. Soc. 26, 125--138 (1997).

H. Ries and J. Muschaweck, “Tailoring freeform lenses for illumination,” Proc. SPIE 4442, 43-50 (2001).

T. L. R. Davenport, “3D NURBS representation of surface for illumination,” Proc. SPIE 4832, 293-301 (2002).

W. A. Parkyn, “The design of illumination lenses via extrinsic differential geometry,” Proc. SPIE 3428, 154-162(1998).

L. Piegl and W. Tiller, *The NURBS Book*, 2nd ed. (Springer-Verlag, 1997).

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