About: convex lens

Premodifier: convex
Head noun: lens

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

Broader concepts

label	provenance	confidence
projection lens	isap:167201044	0.773259
concave lens	isap:167201086	0.620215
lens system	isap:301601380	0.522724
lens	isap:167200657	0.456643

Narrower concepts

label	provenance	confidence
light	isap:202991998	0.077402