colorimeter
type: Concept
preferred label: رنگ‌سنج @fa
related: colorimetry

spectrophotometer
type: Concept
preferred label: طیف‌نورسنج @fa
related: colorimetry

colorimetry
type: Concept
broader: optical variable measurement
preferred label: رنگ‌سنجی @fa
related: colorimeter
related: spectrophotometer

optical variable measurement
type: Concept
narrower: colorimetry
preferred label: اندازه‌گیری متغیر نوری @fa