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Lighthouse Fresnel Lens - Abstract Rainbow Glass Photography

Sale price$45.00
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Daylight passes through the concentric glass prisms of a lighthouse lens and scatters into bands of rainbow color across its stepped surface. The Fresnel lens, designed by French physicist Augustin-Jean Fresnel in 1822, collapsed a bulky conventional lens into thin concentric rings of prisms — a feat of optical engineering that gathered a small flame into a beam visible for more than twenty miles at sea. Each ridged ring bends light a precise amount, and here, idle in daylight, the same geometry simply refracts the spectrum. Framed close and abstract, the image abandons the lighthouse for its instrument. The photograph captures navigation rendered, almost accidentally, as art.