About: projection optical system

Head noun: projection
Postmodifier: optical system

Same concepts

Broader concepts

label	provenance	confidence
optical system	isap:256665392	0.540761
substrate	isap:192882364	0.314860
system	isap:256665395	0.258719

Narrower concepts

label	provenance	confidence
projection lens	isap:190291982	0.609453
optical system	isap:20277298	0.585775
system	isap:20277301	0.390612
element	isap:244589542	0.316991
lens	isap:190291980	0.307566
distortion	isap:400684800	0.191291