File:Fresnel Lens (3478883661).jpg
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| Description | Fresnel lens at the Dossin Great Lakes Museum, Belle Isle, Detroit, MI. A Fresnel lens is a type of lens invented by French physicist Augustin-Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large aperture and short focal length without the weight and volume of material which would be required in conventional lens design. Compared to earlier lenses, the Fresnel lens is much thinner, thus passing more light and allowing lighthouses to be visible over much longer distances. Source: <a href="http://en.wikipedia.org/wiki/Fresnel_lens">en.wikipedia.org/wiki/Fresnel_lens</a>. |
| Date | |
| Source | Fresnel Lens |
| Author | PDru2014 from Detroit, United States |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by PDru2014 at https://flickr.com/photos/30114141@N02/3478883661 (archive). It was reviewed on 20 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:49, 20 November 2018 | | 3,485 × 2,489 (4.82 MB) | Tyler ser Noche (talk | contribs) | Transferred from Flickr via #flickr2commons |
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