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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TOP22278382

Source:

達志影像

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RM

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須由TPG 完整授權

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