Fresnel lens
E129015
UNEXPLORED
A Fresnel lens is a compact, lightweight lens design composed of concentric rings that allows lighthouses and other optical systems to project powerful, focused beams of light over long distances.
Aliases (2)
Referenced by (10)
| Subject (surface form when different) | Predicate |
|---|---|
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Anacapa Island Lighthouse
→
Eastern Point Lighthouse → Highland Light → Key West Lighthouse → Yaquina Head Lighthouse ("first-order Fresnel lens") → |
originalLensType |
|
Augustin-Jean Fresnel
→
|
knownFor |
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Portland Head Light
→
|
laterLensType |
|
Cape Poge Lighthouse
→
|
lensType |
|
Old Mackinac Point Lighthouse
("Fourth-order Fresnel lens")
→
|
originalLens |
|
United States Lighthouse Board
→
|
usedTechnology |