RT Journal Article T1 Improved and customized secondary optics for photo-voltaic concentrators A1 Vázquez Molini, Daniel A1 Álvarez Fernández-Balbuena, Antonio A1 García Botella, Ángel A1 Alda, Javier AB In this contribution the line flow method is applied to an optimized secondary optics in a photovoltaic concentration system where the primary optics is already defined and characterized. This method is a particular application of photic field theory. This method uses the parameterization of a given primary optics, including actual tolerances of the manufacturing process. The design of the secondary optics is constrained by the selection of primary optics and maximizes the concentration at a previously specified collection area. The geometry of the secondary element is calculated by using a virtual source, which sends light in a first concentration step. This allows us to calculate the line flow for this specific case. This concept allows designing more compact and efficient secondary optics of photovoltaic systems. PB SPIE SN 0277-786X YR 2015 FD 2015-08-25 LK https://hdl.handle.net/20.500.14352/24488 UL https://hdl.handle.net/20.500.14352/24488 LA eng NO ISBN: 978-162841738-8CODEN: PSISDCopyright 2015. Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. NO Ministerio de Economia y Competitividad (MINECO) DS Docta Complutense RD 9 abr 2025