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Proceedings Paper

Quasi-aplanatic free-form V-groove collimators for LED colour mixing
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Paper Abstract

Two quasi-aplanatic free-form solid V-groove collimators are presented in this work. Both optical designs are originally designed using the Simultaneous Multiple Surface method in three dimensions (SMS 3D). The second optically active surface in both free-form V-groove devices is designed a posteriori as a grooved surface. First two mirror (XX) design is designed in order to clearly show the design procedure and working principle of these devices. Second, RXI free-form design is comparable with existing RXI collimators; it is a compact and highly efficient design made of polycarbonate (PC) performing very good colour mixing of the RGGB LED sources placed off-axis. There have been presented rotationally symmetric non-aplanatic high efficiency collimators with colour mixing property to be improved and rotationally symmetric aplanatic devices with good colour mixing property and efficiency to be improved. The aim of this work was to design a free-form device in order to improve colour mixing property of the rotationally symmetric non-aplanatic RXI devices and the efficiency of the aplanatic ones.

Paper Details

Date Published: 18 December 2012
PDF: 10 pages
Proc. SPIE 8550, Optical Systems Design 2012, 85502W (18 December 2012); doi: 10.1117/12.981211
Show Author Affiliations
Marina Buljan, Univ. Politécnica de Madrid (Spain)
Pablo Benítez, Light Prescriptions Innovators, LLC (United States)
Juan Carlos Miñano, Light Prescriptions Innovators, LLC (United States)
Lin Wang, Univ. Politécnica de Madrid (Spain)
Rubén Mohedano, Light Prescriptions Innovators, LLC (United States)

Published in SPIE Proceedings Vol. 8550:
Optical Systems Design 2012
Laurent Mazuray; Daniel G. Smith; Jean-Luc M. Tissot; Tina E. Kidger; Frank Wyrowski; Stuart David; Rolf Wartmann; Jeffrey M. Raynor; Andrew P. Wood; Pablo Benítez; Andreas Erdmann; Marta C. de la Fuente, Editor(s)

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