Method for design of axis-symmetrical TIR-optics with use of special quick raytracing technique

Mikhail A. Moiseev; Egor V. Byzov; Kseniya V. Borisova; Leonid L. Doskolovich

doi:10.1117/12.977847

18 December 2012 Method for design of axis-symmetrical TIR-optics with use of special quick raytracing technique

Mikhail A. Moiseev, Egor V. Byzov, Kseniya V. Borisova, Leonid L. Doskolovich

Proceedings Volume 8550, Optical Systems Design 2012; 855030 (2012) https://doi.org/10.1117/12.977847
Event: SPIE Optical Systems Design, 2012, Barcelona, Spain

Abstract

The new optimization method for design of LED optical elements working on the total internal reflection principle is proposed. The optimization method includes the quick raytracing technique adapted for axis-symmetrical surfaces and processing more than hundred thousand rays per second. The raytracing technique based on the approximation of the surface of revolution by a set of truncated cones is presented. As an example, the compact optical element producing uniformly illuminated circle region with angular size of 50° for an extended light source 1x1 mm is computed and simulated. The light efficiency of the designed optical element is about 91.3% and the root-mean-square error of the generated irradiance distribution is less than 10%.

Citation Download Citation

Mikhail A. Moiseev, Egor V. Byzov, Kseniya V. Borisova, and Leonid L. Doskolovich "Method for design of axis-symmetrical TIR-optics with use of special quick raytracing technique", Proc. SPIE 8550, Optical Systems Design 2012, 855030 (18 December 2012); https://doi.org/10.1117/12.977847

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