Method for the characterization of Fresnel lens flux transfer performance
| Autor: | Antonio Álvarez Fernández-Balbuena, Javier Muñoz de Luna, Juan Carlos Martínez Antón, Daniel Vázquez Moliní, Jose Antonio Gómez Pedrero |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
business.industry Aperture Fresnel zone antenna Astrophysics::Instrumentation and Methods for Astrophysics Flux Physics::Optics Fresnel lens Optoelectrónica Zone plate law.invention Characterization (materials science) Entrance pupil Optics law Fresnel number Óptica oftálmica Optica business Óptica |
| Zdroj: | E-Prints Complutense: Archivo Institucional de la UCM Universidad Complutense de Madrid E-Prints Complutense. Archivo Institucional de la UCM instname |
| Popis: | Fresnel lenses and other faceted or micro-optic devices are increasingly used in multiple applications like solar light concentrators and illumination devices, just to name some representative. However, it seems to be a certain lack of adequate techniques for the assessment of the performance of final fabricated devices. As applications are more exigent this characterization is a must. We provide a technique to characterize the performance of Fresnel lenses, as light collection devices. The basis for the method is a configuration where a camera images the Fresnel lens aperture. The entrance pupil of the camera is situated at the focal spot or the conjugate of a simulated solar source. In this manner, detailed maps of the performance of different Fresnel lenses are obtained for different acceptance angles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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