About: aperture stop

Premodifier: aperture
Head noun: stop

Same concepts
http://dbpedia.org/resource/Aperture

Broader concepts

label	provenance	confidence
optical element	isap:6898081	0.657326
component	isap:285369986	0.509619
lens	isap:169259137	0.349839
element	isap:6898090	0.228440

Narrower concepts

label	provenance	confidence