Linear Fresnel lenses focus sunlight in one dimension to a strip. They are used in Thermal Concentrated Solar (CSP) and Low concentration PV applications.
The optimal concentration ration is in the region of X15 - X20 suns. Microsharp designs and manufactures linear Fresnel film of up to 1m wide at any length required. Thin film, linear Fresnel lenses can bonded to sheet PMMA to provide structural rigidity. Microsharp manufactures both flat and curved linear Fresnels.
Curved linear Fresnels have a number of advantages including...
Better tolerance to manufacturing errors
Higher efficiencies
Shorter focal lengths
The documents below give details of our of lens design, manufacturing capabilities.