FAQ

What is the Luminous Intensity Normal to Surface?
Luminous Intensity Normal to Surface measures the brightness of light emitted or reflected from a surface in a specific direction, typically perpendicular to the surface. Luminous Intensity Normal to Surface is usually measured using the Candela for Luminous Intensity. Note that the value of Luminous Intensity Normal to Surface is always positive.
Can the Luminous Intensity Normal to Surface be negative?
No, the Luminous Intensity Normal to Surface, measured in Luminous Intensity cannot be negative.
What unit is used to measure Luminous Intensity Normal to Surface?
Luminous Intensity Normal to Surface is usually measured using the Candela[cd] for Luminous Intensity. Candle (International)[cd], Decimal Candle[cd], Hefner Candle[cd] are the few other units in which Luminous Intensity Normal to Surface can be measured.
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