Design of compact and smooth free-form optical system with uniform illuminance for LED source

doi:10.1364/OE.18.009055

Design of compact and smooth free-form optical system with uniform illuminance for LED source

Yi Luo, Zexin Feng, Yanjun Han, and Hongtao Li »View Author Affiliations

Optics Express, Vol. 18, Issue 9, pp. 9055-9063 (2010)
http://dx.doi.org/10.1364/OE.18.009055

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Abstract
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References (12)
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Abstract

A feedback modification method based on variable separation mapping is proposed in the design of free-form optical system with uniform illuminance for LED source. In this method, the non-negligible size of LED source is taken into account, and a smooth optical system is established with single freeform surface regenerated by adding feedback to the lens design for a point light source. More rounds of feedback can improve the lens performance. As an example, a smooth free-form lens with rectangular illuminance distribution is designed, and the illuminance uniformity is improved from 18.75% to 81.08% after eight times feedback.

OCIS Codes
(220.2945) Optical design and fabrication : Illumination design
(080.4225) Geometric optics : Nonspherical lens design
(080.4298) Geometric optics : Nonimaging optics

ToC Category:
Geometric Optics

History
Original Manuscript: March 2, 2010
Revised Manuscript: April 6, 2010
Manuscript Accepted: April 6, 2010
Published: April 15, 2010

Citation
Yi Luo, Zexin Feng, Yanjun Han, and Hongtao Li, "Design of compact and smooth free-form optical system with uniform illuminance for LED source," Opt. Express 18, 9055-9063 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-9-9055

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References

R. Winston, J. C. Miñano, and P. Benítez, eds., with contributions by N. Shatz and J. C. Bortz, eds., Nonimaging Optics (Elsevier, 2005), Chapter 7.
J. S. Schruben, “Formulation a reflector-design problem for a lighting fixture,” J. Opt. Soc. Am. A 6, 1498–1501 (1972).
H. Ries and J. A. Muschaweck, “Tailored freeform optical surfaces,” J. Opt. Soc. Am. A 19(3), 590–595 (2002). [CrossRef]
A. Timinger, J. Muschaweck, and H. Ries, “Designing tailored free-form surfaces for general illumination,” Proc. SPIE 5186, 128–132 (2003). [CrossRef]
V. Oliker, “Geometric and variational methods in optical design of reflecting surfaces with prescribed illuminance properties,” Proc. SPIE 5942, 594207 (2005). [CrossRef]
L. Caffarelli, S. Kochengin, and V. Oliker, “On the numerical solution of the problem of reflector design with given far-field scattering data,” Contemp. Math. 226, 13–32 (1999).
X.-J. Wang, “On design of a reflector antenna II,” Calculus Var. Partial Differ. Equ. 20(3), 329–341 (2004). [CrossRef]
W. A. Parkyn, “The design of illumination lenses via extrinsic differential geometry,” Proc. SPIE 3482, 191–193 (1998).
L. Wang, K. Y. Qian, and Y. Luo, “Discontinuous free-form lens design for prescribed irradiance,” Appl. Opt. 46(18), 3716–3723 (2007). [CrossRef] [PubMed]
P. Benítez, J. C. Miñano, J. Blen, R. Mohedano, J. Chaves, O. Dross, M. Hernández, and W. Falicoff, “Simultaneous multiple surface optical design method in three dimensions,” Opt. Eng. 43, 1489–1502 (2004). [CrossRef]
Y. Han, X. Zhang, Z. Feng, K. Qian, H. Li, Y. Luo, X. Li, G. Huang, and B. Zhu, “Variable-separation three dimensional freeform nonimaging optical system design based on target-to-source mapping and micro belt surface construction, ” Sciencepaper Online 1–9(2010). http://www.paper.edu.cn/en/paper.php?serial_number=201002-443
L. Piegl and W. Tiller, The NURBS Book 2nd, ed (Springer-Verlag, Berlin, 1997).

Appl. Opt.

L. Wang, K. Y. Qian, and Y. Luo, “Discontinuous free-form lens design for prescribed irradiance,” Appl. Opt. 46(18), 3716–3723 (2007). [CrossRef] [PubMed]

Calculus Var. Partial Differ. Equ.

X.-J. Wang, “On design of a reflector antenna II,” Calculus Var. Partial Differ. Equ. 20(3), 329–341 (2004). [CrossRef]

Contemp. Math.

L. Caffarelli, S. Kochengin, and V. Oliker, “On the numerical solution of the problem of reflector design with given far-field scattering data,” Contemp. Math. 226, 13–32 (1999).

J. Opt. Soc. Am. A

J. S. Schruben, “Formulation a reflector-design problem for a lighting fixture,” J. Opt. Soc. Am. A 6, 1498–1501 (1972).
H. Ries and J. A. Muschaweck, “Tailored freeform optical surfaces,” J. Opt. Soc. Am. A 19(3), 590–595 (2002). [CrossRef]

Opt. Eng.

P. Benítez, J. C. Miñano, J. Blen, R. Mohedano, J. Chaves, O. Dross, M. Hernández, and W. Falicoff, “Simultaneous multiple surface optical design method in three dimensions,” Opt. Eng. 43, 1489–1502 (2004). [CrossRef]

Proc. SPIE

A. Timinger, J. Muschaweck, and H. Ries, “Designing tailored free-form surfaces for general illumination,” Proc. SPIE 5186, 128–132 (2003). [CrossRef]
V. Oliker, “Geometric and variational methods in optical design of reflecting surfaces with prescribed illuminance properties,” Proc. SPIE 5942, 594207 (2005). [CrossRef]
W. A. Parkyn, “The design of illumination lenses via extrinsic differential geometry,” Proc. SPIE 3482, 191–193 (1998).

Other

R. Winston, J. C. Miñano, and P. Benítez, eds., with contributions by N. Shatz and J. C. Bortz, eds., Nonimaging Optics (Elsevier, 2005), Chapter 7.
Y. Han, X. Zhang, Z. Feng, K. Qian, H. Li, Y. Luo, X. Li, G. Huang, and B. Zhu, “Variable-separation three dimensional freeform nonimaging optical system design based on target-to-source mapping and micro belt surface construction, ” Sciencepaper Online 1–9(2010). http://www.paper.edu.cn/en/paper.php?serial_number=201002-443
L. Piegl and W. Tiller, The NURBS Book 2nd, ed (Springer-Verlag, Berlin, 1997).

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