Wikimedi'Òc

Barbier Bénard et Turenne Lantern R01.jpg - MJJR

Fresnel Lens (3478980437).jpg - Tyler ser Noche

Phare Hyperradiant - NARA - 116764113.jpg - US National Archives bot

Fresnels lighthouse lens, fourth order, made by Barbier, Renard and Turenne, Paris, installed in the Eastern Point Light Station, 1857 - Cape Ann Museum - Gloucester, MA - DSC01348.jpg - Daderot

BBT Airmail type M-8-D Landing Floodlight (1677708651).jpg - JotaCartas