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Proceedings Paper

Advances in flowline simulations
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Paper Abstract

Nonimaging optics is focused on the study of techniques to design optical systems for the purpose of energy transfer instead of image forming. The flowline optical design method, based on the definition of the geometrical flux vector J, is one of these techniques. The main advantage of flowline method is its capability to visualize and estimate how radiant energy is transferred by the optical systems using the concepts of vector field theory, like field line or flux tube, which overcomes traditional raytrace methods. The main objective this paper is to extend the flowline method to analyze and design real 3D concentration and illumination systems by the development of new simulation techniques. In this paper we will analyzed real 3D refractive and reflective systems using flowline vector potential method. A new constant term of Optical Path Length has been introduced, similar and comparable to the gauge invariant, which produces a correction to enable the agreement between raytrace and flowline based computations. Finally an introduction to Flowline computations for non-Lambertian sources has been carry out. This new optical simulation methodology provides traditional raytrace results, like irradiance maps, but opens new perspectives to obtaining higher precision, lower computation time.

Paper Details

Date Published: 9 September 2019
PDF: 12 pages
Proc. SPIE 11120, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVI, 111200C (9 September 2019);
Show Author Affiliations
Ángel García-Botella, Univ. Politécnica de Madrid (Spain)
Lun Jiang, Univ. of California, Merced (United States)
Roland Winston, Univ. of California, Merced (United States)


Published in SPIE Proceedings Vol. 11120:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVI
Roland Winston; Eli Yablonovitch, Editor(s)

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