Fresnel lens

https://www.wikidata.org/wiki/Q14672

Field Hierarchy

Parent
Biology 36.7M papers	Physics 33.6M papers	Engineering 25.6M papers	Geology 10.6M papers
Optics 8.2M papers	Paleontology 5.6M papers	Petroleum engineering 510k papers	Lens (geology) 168k papers
Lens (optics) 18 papers
Current
Fresnel lens 3,602 papers
Child

Trends

Notes

History