Relief-phase diffractive optical elements on formed revolution surfaces having the high diffraction efficiency

G.I. Greysukh, E.G. Ezhov, Z.A. Sidyakina, S.A. Stepanov

PDF,465 kB

DOI: 10.18287/0134-2452-2013-37-1-51-58.

Full text of article: Russian language.

Pages: 51-58.

Abstract:
New optimization method for design of axisymmetrical TIR optical elements generating the prescribed narrow-angle irradiance distribution is presented. The method is based on the developed quick raytracing procedure including approximation of the optical surfaces by a set of truncated cones. As an example the optical element producing uniformly illuminated circular region with angular size of 60° is presented. It was computed and simulated for extended Lambert light source 1x1 mm. The light efficiency of optical element is 91.5 % and the relative root-mean-square error of generated irradiance distribution is less than 5 %.

Key words:
LED optical element, secondary optics, total internal reflection, raytracing, optimization of optical surface, narrow-angle light distribution.

Citation:
Moiseev MA, Borisova KV, Byzov EV, Doskolovich LL. Optimization method for computation of tir optical elements based on quick raytracing procedure. Computer Optics 2013; 37(1): 51-58. DOI:10.18287/0134-2452-2013-37-1-51-58.

References:

  1. http://lambdares.com/software_products/tracepro/
  2. http://www.opticalres.com/lt/ltprodds_f.html
  3. Vazquez-Molini, D. High-efficiency light-emitting diode collimator / D. Vazquez-Molini, M. Gonzalez-Montez, A. Alvarez, E. Bernabeu // Opt. Eng. – 2010. – Vol. 49, N 12. – P. 123001. – ISSN 0091-3286.
  4. Zhenrong, Zh. Freeform surface lens for LED uniform illumination / Zh. Zhenrong, H. Xiang, L. Xu // Applied Optics. – 2009. – Vol. 48, N 35. – P. 6627-6634. – ISSN 0003-6935.
  5. Jiang, J. Optical design of a freeform TIR lens for LED streetlight / J. Jiang, S. To, W.B. Lee, B. Cheung // Optik. – 2010. – Vol. 121. – P. 1761-1765. – ISSN 0030-4026.
  6. Li, S. Design of a compact modified total internal reflection lens for high angular color uniformity / S. Li, F. Chen, K. Wang // Applied Optics. – 2012. –Vol. 51, N 36 – P. 8557-8562. – ISSN ISSN 1539-452.
  7. Moiseev, M.A. Design of led TIR-optics producing prescribed illuminance distributions in circle regions / M.A. Moiseev, L.L. Doskolovich, E.V. Byzov, S.V. Krav­chenko // Computer Optics. – 2012. – Vol. 36(3). – P. 333-340. – ISSN 0134-2452. – (In Russian).
  8. Butcher, J.Ch. Numerical methods for ordinary differential equations / J.Ch. Butcher. – Chichester: Wiley, 2003. – 428 p.
  9. Methods for computer design of diffractive optical elements / ed. V.A. Soifer. – New York: John Wiley & Sons, Inc., 2002. – 765 p.
  10. Born, M. Principles of optics / M. Born, E. Wolf. – Cambridge: Cambridge University Press, 2003. – 952 p.
  11. SpencerG.H. General ray-tracing procedure / G.H. Spencer, M.V.R.K. Murty// J. Opt. Soc. Am. A. – 1962. – Vol. 52, Issue 6. – P. 672-676.
  12. Piegl, L. The NURBS Book / L. Piegl and W. Tiller. – Springer, 2nd edition, 1997.
  13. Aber, O. Direct and Fast Ray Tracing of NURBS Surfaces / O. Abert, M. Geimer, S. Muller // IEEE Symposium on Interactive Ray Tracing. – 2006. – P. 161-168. – ISBN 1-4244-0693-5.

© 2009, IPSI RAS
Institution of Russian Academy of Sciences, Image Processing Systems Institute of RAS, Russia, 443001, Samara, Molodogvardeyskaya Street 151; E-mail: ko@smr.ru; Phones: +7 (846 2) 332-56-22, Fax: +7 (846 2) 332-56-20