fourth order Fresnel lens

type of lens
rdfs:label
"fourth order Fresnel lens"@en
skos:altLabel
"4th order Fresnel lens"@en
schema:description
"type of lens"@en
schema:dateModified "2026-06-18T21:26:08+00:00"^^xsd:dateTime
schema:version 2507639897
wikibase:identifiers 0
wikibase:sitelinks 1
wikibase:statements 8
p:P155 wd:statement/Q24629281-d242e9e3-410d-6afe-f6eb-2be0344ef331
p:P156 wd:statement/Q24629281-4027557c-4b9d-b6c3-9a06-6a4cf171de56
p:P18 wd:statement/Q24629281-10efa772-465c-afd1-4d25-35d796780bf6
p:P2151 wd:statement/Q24629281-2aa976d1-4d2f-c12e-4359-2b43f63d2144
p:P279 wd:statement/Q24629281-3ba45014-4c3e-fbcc-be82-fb1e1b01bb62
p:P3451 wd:statement/Q24629281-e5104e0e-4777-b46a-21cf-75554a59ecf0
p:P373 wd:statement/Q24629281-D74A034C-7137-4A41-91EB-F80F1B84D7FD
p:P7084 wd:statement/Q24629281-6A5E5F65-DAD0-4277-9152-7E605231FABD
wdt:P155 third order Fresnel lens
wdt:P156 fifth order Fresnel lens
wdt:P18 <http://commons.wikimedia.org/wiki/Special:FilePath/Elizabeth%20Donkin%20Lighthouse%20Lens.jpg>
wdt:P2151 250.0^^xsd:decimal
wdt:P279 Fresnel lens
wdt:P3451 <http://commons.wikimedia.org/wiki/Special:FilePath/4th%20Order%20fixed%20Fresnel%20Lens%2C%20crica%20Late%201800%27s%20%2841645846745%29.jpg>
wdt:P373 "Fourth order fresnel lenses"
wdt:P7084 Category:Lighthouses with fourth order Fresnel lenses
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