Medrano Gurrea, MarioJiménez Martínez, UnaiTainta Ausejo, SantiagoErro Betrán, María JoséArnedo Gil, IsraelBeato López, Juan JesúsIzura, J.Zabala, S.2023-09-252023-09-252023Medrano-Gurrea, M., Jiménez-Martínez, U., Tainta-Ausejo, S., Erro-Betrán, M. J., Arnedo-Gil, I., Beato-López, J. J., Izura, J., Zabala, S. (2023) Optimized pattern design of a light guide using 2D ray-tracing simulation. En Kress, B. C., Czarske J. W., SPIE Digital Optical Technologies SPIE. https://doi.org/10.1117/12.2675838.10.1117/12.2675838https://academica-e.unavarra.es/handle/2454/46407We propose the use of a simplified model for the analysis of the scattering elements used in edge-lit systems. By modelling their behaviour as lambertian light sources whose properties depend on the size and geometry of the scatterer and LGP, it is possible to simulate the illuminance map of the edge-lit structure using only 2D ray-traced simulation. This reduces the computational complexity in the optimisation process used to calculate the scatterers distribution to achieve maximum uniformity in light extraction. The results obtained by comparison between the proposed algorithm and a commercial software demonstrate the validity of the proposal.application/pdfeng© 2023 Society of Photo Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, or modification of the contents of the publication are prohibited.2D ray-traced simulationinfo:eu-repo/semantics/conferenceObject2023-09-25Acceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess