4th order Fresnel lens in the Mukilteo lighthouse in Washington. 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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Details
Creative#:
TOP22278791
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
No
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No
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