About: negative lens

Premodifier: negative
Head noun: lens

Same concepts
http://dbpedia.org/resource/Lens_(optics)

Broader concepts

label	provenance	confidence
positive lens	isap:167200865	0.678520
negative lens	isap:167201054	0.593935
lens	isap:167200740	0.578052

Narrower concepts

label	provenance	confidence
barlow lens	isap:167200699	0.655535
negative lens	isap:167201054	0.593935
lens	isap:167200891	0.305203