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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S2 — Mar. 10, 2014
  • pp: A552–A560

Designing optical free-form surfaces for extended sources

R. Wester, G. Müller, A. Völl, M. Berens, J. Stollenwerk, and P. Loosen  »View Author Affiliations


Optics Express, Vol. 22, Issue S2, pp. A552-A560 (2014)
http://dx.doi.org/10.1364/OE.22.00A552


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Abstract

LED lighting has been a strongly growing field for the last decade. The outstanding features of LED, like compactness and low operating temperature take the control of light distributions to a new level. Key for this is the development of sophisticated optical elements that distribute the light as intended. The optics design method known as tailoring relies on the point source assumption. This assumption holds as long as the optical element is large compared to the LED chip. With chip sizes of 1 mm2 this is of no concern if each chip is endowed with its own optic. To increase the power of a luminaire, LED chips are arranged to form light engines that reach several cm in diameter. In order to save costs and space it is often desirable to use a single optical element for the light engine. At the same time the scale of the optics must not be increased in order to trivially keep the point source assumption valid. For such design tasks point source algorithms are of limited usefulness. New methods that take into account the extent of the light source have to be developed. We present two such extended source methods. The first method iteratively adapts the target light distribution that is fed into a points source method while the second method employs a full phase space description of the optical system.

© 2014 Optical Society of America

OCIS Codes
(220.2740) Optical design and fabrication : Geometric optical design
(080.4298) Geometric optics : Nonimaging optics

ToC Category:
Optical Design for Energy Applications

History
Original Manuscript: December 24, 2013
Revised Manuscript: February 27, 2014
Manuscript Accepted: February 27, 2014
Published: March 7, 2014

Virtual Issues
Renewable Energy and the Environment (2014) Optics Express

Citation
R. Wester, G. Müller, A. Völl, M. Berens, J. Stollenwerk, and P. Loosen, "Designing optical free-form surfaces for extended sources," Opt. Express 22, A552-A560 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S2-A552


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References

  1. S. J. Schruben, “Formulation of a Reflector-Design Problem for a Lighting Fixture,” J. Opt. Soc. Am.62, 1498–1501 (1972). [CrossRef]
  2. H. Ries and J. Muschaweck, “Tailored freeform optical surfaces,” J. Opt. Soc. Am. A19, 590–595 (2002). [CrossRef]
  3. B. Parkyn and D. Pelka, “Free-form illumination lenses designed by a pseudo-rectangular lawnmower algorithm,” Proc. SPIE6338, 633808 (2006). [CrossRef]
  4. A. Bruneton, A. Bäuerle, M. Traub, R. Wester, and P. Loosen, “Irradiance tailoring with two-sided, Fresnel-type freeform optics,” Proc. SPIE8485, 84850H (2012). [CrossRef]
  5. A. Bäuerle, A. Bruneton, R. Wester, J. Stollenwerk, and P. Loosen, “Algorithm for irradiance tailoring using multiple freeform optical surfaces,” Opt. Express20, 14477–14485 (2012). [CrossRef] [PubMed]
  6. F. R. Fournier, W. J. Cassarly, and J. P. Rolland, “Optimization of single reflectors for extended sources,” Proc. of SPIE7103, 71030I (2008). [CrossRef]
  7. 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,” SPIE Proc. Optical Engineering43, 1489–1502 (2004).
  8. A. Rabl and J. Gordon, “Reflector design for illumination with extended sources: the basic solutions,” Applied Optics33, 6012–6021 (1994). [CrossRef] [PubMed]
  9. T. Glimm and V. Oliker, “Optical design of single reflector systems and the mongekantorovich mass transfer problem,” Journal of Mathematical Sciences117, 4096–4108 (2003). [CrossRef]
  10. S. Seroka and S. Sertl, “Modeling of refractive freeform surfaces by a nonlinear PDE for the generation of a given target light distribution,” International Light Simulation Symposium (2012).
  11. R. Wu, L. Xu, P. Liu, Y. Zhang, Z. Zheng, H. Li, and X. Liu, “Freeform illumination design: a nonlinear boundary problem for the elliptic Monge-Ampére equation.” Optics letters38, 229–231 (2013). [CrossRef]
  12. S. A. Kochengin and V. I. Oliker, “Determination of reflector surfaces from near-field scattering dataII. Numerical solution,” Numer. Math.79, 553–568 (1998). [CrossRef]
  13. F. R. Fournier, W. J. Cassarly, and J. P. Roland, “Designing freeform reflectors for extended sources,” Proc. of SPIE7423, 743202 (2009).
  14. S. Haker, L. Zhu, A. Tannenbaum, and S. Angenent, “Optimal Mass Transport for Registration and Warping,” Int. J. of Comput. Vision60, 225–240 (2004). [CrossRef]
  15. A. Bruneton, A. Bäuerle, R. Wester, J. Stollenwerk, and P. Loosen, “High resolution irradiance tailoring using multiple freeform surfaces,” Opt. Express21, 10563–10571 (2013). [CrossRef] [PubMed]
  16. J. Bortz and N. Shatz, “Iterative generalized functional method of nonimaging optical design,” Proc. SPIE6670, 66700A (2007). [CrossRef]
  17. R. Wester, A. Bruneton, A. Bäuerle, J. Stollenwerk, and P. Loosen, “Irradiance tailoring for extended sources using a point-source freeform design algorithm,” Proc. of SPIE, Optical Systems Design8550, 85502S(2012). [CrossRef]

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