Fresnel lens

Fresnel lens

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Credit: GREGORY G. DIMIJIAN, M.D. /SCIENCE PHOTO LIBRARY

Caption: Fresnel lens in Aransas Pass Light Station, an historic lighthouse overlooking the Texas Coast at Aransas Pass, Texas. Invented by French physicist Augustin-Jean Fresnel, the lens is much thinner than a conventional lens, which allows for a large aperture and short focal length at a lower weight.

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Keywords: aransas pass light station, fresnel, fresnel lens, guide, historic, historical, indicator, lens, light, lighthouse, lighthouse lens, navigation, navigational tool, optics

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