Advances on geometric flux optical design method

Ángel García-Botella; Antonio Álvarez Fernández-Balbuena; Daniel Vázquez

doi:10.1117/12.2281481

7 September 2017 Advances on geometric flux optical design method

Ángel García-Botella, Antonio Álvarez Fernández-Balbuena, Daniel Vázquez

Proceedings Volume 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV; 103790J (2017) https://doi.org/10.1117/12.2281481
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

Nonimaging optics is focused on the study of methods to design concentrators or illuminators systems. It can be included in the area of photometry and radiometry and it is governed by the laws of geometrical optics. The field vector method, which starts with the definition of the irradiance vector E, is one of the techniques used in nonimaging optics. Called “Geometrical flux vector” it has provide ideal designs. The main property of this model is, its ability to estimate how radiant energy is transferred by the optical system, from the concepts of field line, flux tube and pseudopotential surface, overcoming traditional raytrace methods. Nevertheless this model has been developed only at an academic level, where characteristic optical parameters are ideal not real and the studied geometries are simple. The main objective of the present paper is the application of the vector field method to the analysis and design of real concentration and illumination systems. We propose the development of a calculation tool for optical simulations by vector field, using algorithms based on Fermat`s principle, as an alternative to traditional tools for optical simulations by raytrace, based on reflection and refraction law. This new tool provides, first, traditional simulations results: efficiency, illuminance/irradiance calculations, angular distribution of light- with lower computation time, photometrical information needs about a few tens of field lines, in comparison with million rays needed nowadays. On the other hand the tool will provides new information as vector field maps produced by the system, composed by field lines and quasipotential surfaces. We show our first results with the vector field simulation tool.

Citation Download Citation

Ángel García-Botella, Antonio Álvarez Fernández-Balbuena, and Daniel Vázquez "Advances on geometric flux optical design method", Proc. SPIE 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV, 103790J (7 September 2017); https://doi.org/10.1117/12.2281481

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KEYWORDS

Nonimaging optics

Algorithm development

Optical simulations

Fiber optic illuminators

Geometrical optics

Optical design

Photometry

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