Simple lens

https://www.wikidata.org/wiki/Q7520802

Field Hierarchy

Parent
Biology 34.8M papers	Physics 31.7M papers	Engineering 23.9M papers	Geology 9.1M papers
Optics 7.9M papers	Paleontology 5.3M papers	Petroleum engineering 466k papers	Lens (geology) 161k papers
Focal length 13.4k papers		Cylindrical lens 1,002 papers
Current
Simple lens 899 papers
Child

Trends

Notes

History