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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 25 — Sep. 1, 2012
  • pp: 6117–6124

Two-axis solar tracking accomplished through small lateral translations

Justin M. Hallas, Katherine A. Baker, Jason H. Karp, Eric J. Tremblay, and Joseph E. Ford  »View Author Affiliations

Applied Optics, Vol. 51, Issue 25, pp. 6117-6124 (2012)

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High-concentration solar-power optics require precise two-axis tracking. The planar micro-optic solar concentrator uses a lenslet array over a planar waveguide with small reflective facets at the focal point of each lenslet to couple incident light into the waveguide. The concentrator can use conventional tracking, tilting the entire assembly, but the system geometry also allows tracking by small lateral translation of the lenslet relative to the waveguide. Here, we experimentally demonstrate such microtracking with the existing concentrator optics and present optimized optical designs for systems with higher efficiency and angle range.

© 2012 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(220.1770) Optical design and fabrication : Concentrators
(220.4830) Optical design and fabrication : Systems design
(350.3950) Other areas of optics : Micro-optics
(350.6050) Other areas of optics : Solar energy
(130.2755) Integrated optics : Glass waveguides

ToC Category:
Solar Energy

Original Manuscript: June 19, 2012
Manuscript Accepted: July 9, 2012
Published: August 28, 2012

Justin M. Hallas, Katherine A. Baker, Jason H. Karp, Eric J. Tremblay, and Joseph E. Ford, "Two-axis solar tracking accomplished through small lateral translations," Appl. Opt. 51, 6117-6124 (2012)

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