About: illumination optical system

Head noun: illumination
Postmodifier: optical system

Same concepts

Broader concepts

label	provenance	confidence
optical system	isap:82162328	0.492871
exposure apparatus	isap:112158055	0.432905
present invention	isap:112735290	0.346954
apparatus	isap:112158058	0.162935

Narrower concepts

label	provenance	confidence
optical system	isap:68751463	0.634996
light source	isap:69969314	0.567795