Design of optical elements with TIR freeform surface
K.V. Andreeva, M.A. Moiseev, S.V. Kravchenko, L.L. Doskolovich

 

Image Processing Systems Institute оf RAS, – Branch of the FSRC “Crystallography and Photonics” RAS, Samara, Russia,
Samara National Research University, Samara, Russia

Full text of article: Russian language.

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Abstract:
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%.

Keywords:
design of optical surfaces, freeform surface, total internal reflection (TIR), narrow-angle light distributions.

Citation:
Andreeva KV, Moiseev MA, Kravchenko SV, Doskolovich LL. Design of optical elements with TIR freeform surface. Computer Optics 2016; 40(4): 467-474. DOI: 10.18287/2412-6179-2016-40-4-467-474.

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