Vázquez Molini, DanielGonzález Montes, MarioÁlvarez Fernández-Balbuena, AntonioBernabeu Martínez, Eusebio2023-06-202023-06-202010-120091-328610.1117/1.3522644https://hdl.handle.net/20.500.14352/44284© 2010 Society of Photo-Optical Instrumentation Engineers.We describe an analytical and numerical method to design and optimize LED (light-emitting diode) collimators. The optimization process is confirmed by optical simulations and experimental measurements of a scaled prototype. The collimator's definitive geometry and design parameters rely on the LED's emitting characteristics and the employed collimator material. The resulting parabolic-elliptical-based collimator shows an optimum performance and a compact structure with requirement for mirrored surfaces.journal articlehttp://dx.doi.org/10.1117/1.3522644http://opticalengineering.spiedigitallibrary.orgmetadata only access535Light-Emitting Diode CollimatorNumerical ApertureOptical DivergenceÓptica (Física)2209.19 Óptica Física