Radial (point focussing) Fresnel Lenses

Microsharp thin film Fresnel lenses are an attractive alternative to hot embossed or injection molded lenses in High Concentration Photovoltaic (HCPV) applications.

Our proprietary lens production process provides the following benefits...

  • Continuous high speed production
  • Consistent and precise structure replication
  • High optical efficiency
  • Lower manufacturing cost
  • Low development and tooling cost
  • Lens sizes from 5mm - 400mm
  • Available in 'parquets up to 1m wide  

 

Lens Construction

The Fresnel lens structure with a depth of 35 - 75 microns is produced onto the surface of a PMMA film..

The film is then bonded to the underside of a supporting PMMA sheet of between 3 - 5 mm

 

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PMMA sheet - 2-5 mm

 

 

 

 PMMA film

Lens structure 

 

 

bull  Flat Fresnel lens brochure

bull Weatherability testing report - flat lens materials