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Nested aplanats for practical maximum-performance solar concentration.

Alex Goldstein1, Daniel Feuermann, Gary D Conley

  • 1Department of Solar Energy and Environmental Physics, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.

Optics Letters
|August 3, 2011
PubMed
Summary
This summary is machine-generated.

Nested dual-mirror aplanats achieve efficient solar concentration with the focus outside the optic. This novel design eliminates the need for external components, simplifying solar cell integration for concentrator photovoltaics.

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Area of Science:

  • Optics and Photonics
  • Renewable Energy Technologies

Background:

  • Dual-mirror aplanats offer compact, high-irradiance solar concentration for photovoltaics.
  • Current designs necessitate internal focal points, requiring external dielectric concentrators and optical bonding for solar cell integration.

Purpose of the Study:

  • To investigate a modified dual-mirror aplanat design strategy.
  • To achieve external focal points without compromising compactness, low shading losses, or manufacturability.

Main Methods:

  • Utilized judiciously nested dual-mirror aplanat configurations.
  • Performed raytrace simulations to evaluate optical performance.

Main Results:

  • Demonstrated that nested dual-mirror aplanats can successfully place the focal point outside the optic.
  • Raytrace simulations confirmed performance comparable to conventional aplanats.

Conclusions:

  • Nested dual-mirror aplanats offer a viable alternative to conventional designs.
  • This approach simplifies solar cell integration by eliminating the need for external extractors and optical bonds.