Luminous Intensity in aircraft design refers to the measure of the amount of visible light emitted in a particular direction from a light source. It is typically expressed in candela (cd), which is the SI unit for luminous intensity. Luminous intensity is essential in aviation for specifying the brightness of lighting systems, navigation lights, and cockpit instruments. The formula for luminous intensity and its SI unit are as follows:
Luminous Intensity Formula: Luminous intensity (I) is a measure of the amount of visible light emitted within a solid angle (steradian) in a specific direction. The formula for luminous intensity is as follows:
- I: Luminous Intensity, measured in candela (cd).
- L: Luminous Flux, measured in lumens (lm).
- Ω: Solid Angle, measured in steradians (sr).