Performance evaluation of a high concentrator photovoltaic integrating a Fresnel lens in Saudi Arabia: A case study - Aldossary - 2021 - International Journal of Energy Research - Wiley Online Library
Optical Design using Fresnel Lenses
Focal Length Calculator | Edmund Optics
Focal length calculator
Fresnel Lens Focal Length 10 Mm Diameter 20mm Circle Fresnel Lens Hot Led Lamp Lens Small Size And Focus - Magnifiers - AliExpress