Fresnel Lenses – Barbier, Benard & Turenne – AGA and Waglan lighthouse…
HF: Barbier, Benard and Turenne (BBT) was a French company founded in 1862. It specialized in the manufacture of lights, optical devices and lighting systems. And complete lighthouses including the one on Hong Kong’s Waglan Island. The lighthouse incorporated Fresnel lenses. The Swedish Company AGA was later involved as was its UK subsidiary Pharos Marine. I didn’t know the name […]
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