Graeme Teague Photography

Fresnel Lens

Caption: Fresnel Lens
Location: St.Augustine, Florida
Copyright: © Graeme Teague 832-526-1123 gtphoto@shaw.ca
AGPix ID: AGPix_GrTePh23_0320
Photo Alignment: 35mm (vertical)
Comments: This fab bit of glass is a Fresnel Lens whose concept was invented by Monsieur Augustin-Jean Fresnel in 1822! His construction technique for lighthouse lenses revolutionised the lighthouse business, reducing weight by a factor of 10 and having a light capture of 70% and concentrated beams that could be seen clearly for miles. This lens is part of the wonderful museum attached to the St.Augustine historic light station, Fresnel lenses come in seven strengths or orders depending on need. Still the 100's to often 1,000's of individual pieces of glass that make up lighthouse lenses create huge works of art when assembled - help I want one! Fabulous St.Augustine light station coverage. Lighthouses throughout the world a specialty.