Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:Lens
|
| gptkbp:category |
Lighthouse technology
Optical lens |
| gptkbp:diameter |
1330 mm
|
| gptkbp:height |
1330 mm
|
| gptkbp:introducedIn |
late 19th century
|
| gptkbp:inventedBy |
John Richardson Wigham
|
| gptkbp:rank |
first-order Fresnel lens
|
| gptkbp:usedFor |
maximum light intensity
|
| gptkbp:usedIn |
gptkb:Cape_Race_Lighthouse
lighthouses Great Basses Reef Lighthouse Makapu'u Point Light |
| gptkbp:bfsParent |
gptkb:Makapu'u_Point_Lighthouse
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hyper-radial Fresnel lens
|