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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S1 — Jan. 2, 2012
  • pp: A51–A61

TIR RXI collimator

Dejan Grabovičkić, Pablo Benítez, and Juan C. Miñano  »View Author Affiliations


Optics Express, Vol. 20, Issue S1, pp. A51-A61 (2012)
http://dx.doi.org/10.1364/OE.20.000A51


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Abstract

A metal-less RXI collimator has been designed using the Simultaneous multiple surface method (SMS). Unlike conventional RXI collimators, whose back surface and parts of the front surface have to be metalized, this collimator is completely metal-free, made only of plastic (PMMA). The collimator’s back surface is designed as a grooved surface providing two TIR reflections for all rays impinging on it. One advantage of the design is the lower manufacturing cost, since there is no need for the expensive process of metalization. More importantly, unlike conventional RXI collimators, this design performs good colour mixing, as well as being very insensitive to the source non-uniformities. The experimental measurements of the first prototype show good agreement with the simulated design.

© 2011 OSA

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(080.4298) Geometric optics : Nonimaging optics

History
Original Manuscript: September 19, 2011
Revised Manuscript: November 8, 2011
Manuscript Accepted: November 18, 2011
Published: December 6, 2011

Citation
Dejan Grabovičkić, Pablo Benítez, and Juan C. Miñano, "TIR RXI collimator," Opt. Express 20, A51-A61 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-S1-A51


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References

  1. J. C. Miñano, J. C. Gonźlez, and P. Benítez, “RXI: a high-gain, compact, nonimaging concentrator,” Appl. Opt.34(34), 7850–7856 (1995). [CrossRef] [PubMed]
  2. F. Muñoz, Sistemas ópticos avanzados de gran compactibilidad con aplicaciones en formación de imagen y en iluminación, (Thesis Doctoral, E.T.S.I.Telecomunicación, Madrid, 2004)
  3. F. Muñoz, P. Benítez, O. Dross, J. C. Miñano, and B. Parkyn, “Simultaneous multiple surface design of compact air-gap collimators for light-emitting diodes,” Opt. Eng.43(7), 1522–1530 (2004). [CrossRef]
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  5. D. Grabovičkić, P. Benítez, and J. C. Miñano, “Free-form V-groove reflector design with the SMS method in three dimensions,” Opt. Express19(S4Suppl 4), A747–A756 (2011). [CrossRef] [PubMed]
  6. Synopsys software package LightTools, http://www.opticalres.com/
  7. P. Benítez, J. C. Miñano, and A. Santamaría, “Analysis of microstructured surfaces in two dimensions,” Opt. Express14(19), 8561–8567 (2006). [CrossRef] [PubMed]
  8. P. Benítez, J. C. Miñano, A. Santamaría, and M. Hernández, “On the analysis of rotational symmetric microstructured surfaces,” Opt. Express15(5), 2219–2233 (2007). [CrossRef] [PubMed]

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