Disambiguation evidence for Fresnel lens via surface form
"Fourth-order Fresnel lens"
Triples (4)
Triples where some other subject referred to this entity
as "Fourth-order Fresnel lens".
Old Mackinac Point Lighthouse
→
originalLens
→
"Fourth-order Fresnel lens"
ⓘ
↳ resolves to Fresnel lens
Spring Point Ledge Light
→
originalLensType
→
"Fourth-order Fresnel lens"
ⓘ
↳ resolves to Fresnel lens
Admiralty Head Lighthouse
→
originalLensType
→
"Fourth-order Fresnel lens"
ⓘ
↳ resolves to Fresnel lens