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Proceedings Paper

Design of LED optics with two aspherical surfaces and the highest efficiency
Author(s): Mikhail A. Moiseev; Sergey V. Kravchenko; Leonid L. Doskolovich; Nikolay L. Kazanskiy
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Paper Abstract

The method for computation of LED optical elements with two aspherical surfaces and the highest possible efficiency is presented. The series of optical elements producing uniformly illuminated circle regions were computed and simulated with point light source. The simulation data shows that such optical elements have good performance for all angular sizes of the illuminated region (from 0° to 160°) including cases of full collimation and illumination of wide regions. The proposed design method works well with extended light sources too. The optical element with height of 7 mm generating uniformly illuminated region with angular size of 60° was simulated with extended light source 1x1 mm. The light efficiency decreased by 1-2 % only and the irradiance distribution remained the same. Taking into account the small dimensions of the proposed optical elements they can compete with TIR-optics in cases of generation narrow-angle light distributions.

Paper Details

Date Published: 18 December 2012
PDF: 6 pages
Proc. SPIE 8550, Optical Systems Design 2012, 85502N (18 December 2012); doi: 10.1117/12.977846
Show Author Affiliations
Mikhail A. Moiseev, Image Processing Systems Institute (Russian Federation)
LED Optics Design, LLC (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)
Sergey V. Kravchenko, Image Processing Systems Institute (Russian Federation)
LED Optics Design, LLC (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)
Leonid L. Doskolovich, Image Processing Systems Institute (Russian Federation)
LED Optics Design, LLC (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)
Nikolay L. Kazanskiy, Image Processing Systems Institute (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 8550:
Optical Systems Design 2012
Laurent Mazuray; Rolf Wartmann; Andrew P. Wood; Marta C. de la Fuente; Jean-Luc M. Tissot; Jeffrey M. Raynor; Daniel G. Smith; Frank Wyrowski; Andreas Erdmann; Tina E. Kidger; Stuart David; Pablo Benítez, Editor(s)

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