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1979•Applied OpticsRequires access

Highly concentrating Fresnel lenses

E. M. Kritchman, Asher A. Friesem, G. Yekutieli

Open publisher page 58 citations

Abstract

A new type of convex Fresnel lens is discussed capable of concentrating solar radiation very near the ultimate concentration limit. The differential equations that describe the lens are solved to provide computed solutions, which are then checked by ray tracing techniques. The performance (efficiency and concentration) of the lens is investigated and compared with that of a flat Fresnel lens, showing that the new lens is preferable for concentrating solar radiation.

About this research paper

What this paper is about

A new type of convex Fresnel lens is discussed capable of concentrating solar radiation very near the ultimate concentration limit. The differential equations that describe the lens are solved to provide computed solutions, which are then checked by ray tracing techniques. The performance (efficiency and concentration) of the lens is investigated and compared with that of a flat Fresnel lens, showing that the new lens is preferable for concentrating solar radiation.

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OpenAlex reports 58 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A new type of convex Fresnel lens is discussed capable of concentrating solar radiation very near the ultimate concentration limit. The differential equations that describe the lens are solved to provide computed solutions, which are then checked by ray tracing techniques. The performance (efficiency and concentration) of the lens is investigated and compared with that of a flat Fresnel lens, showing that the new lens is preferable for concentrating solar radiation.

Key concepts: Optics, Fresnel lens, Lens (geology), Fresnel number, Ray tracing (physics), Fresnel zone, Fresnel equations, Simple lens

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