illumination
preferred label: روشنایی @fa
type: Concept
related: luminous energy

visible light
preferred label: نورمرئی @fa
type: Concept
related: luminous energy

radiant energy
preferred label: انرژی تابشی @fa
type: Concept
narrower: luminous energy

light intensity
preferred label: شدت نور @fa
type: Concept
related: luminous energy

luminous energy
related: light intensity
related: visible light
related: illumination
broader: radiant energy
preferred label: انرژی درخششی @fa
type: Concept