Design of optical elements with TIR freeform surface
K. V. Andreevaab, M. A. Moiseevab, S. V. Kravchenkoab, L. L. Doskolovichab
a Samara National Research University, Samara, Russia
b Image Processing Systems Institute îf RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Samara, Russia
A novel method for the design of total internal reflection based (TIR) optical elements generating complex two-dimensional narrow-angle light distributions is presented. The method consists of two parts: computation of a piecewise smooth solution and its subsequent approximation by a spline surface. Examples of TIR optical elements designed using the proposed approach are discussed. The simulation results demonstrate high performance of the proposed method: the luminous efficacy of the optical elements is 91.8% and the relative root-mean-square error is less than 8.6%.
design of optical surfaces, freeform surface, total internal reflection (TIR), narrow-angle light distributions.
|Russian Science Foundation
|Work done at the expense of the grant of the Russian Scientific Fund (project ¹ 14-19-00969).
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K. V. Andreeva, M. A. Moiseev, S. V. Kravchenko, L. L. Doskolovich, “Design of optical elements with TIR freeform surface”, Computer Optics, 40:4 (2016), 467–474
Citation in format AMSBIB
\by K.~V.~Andreeva, M.~A.~Moiseev, S.~V.~Kravchenko, L.~L.~Doskolovich
\paper Design of optical elements with TIR freeform surface
\jour Computer Optics
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