Know the difference between Luminous Flux, Luminous Intensity and Illuminance
All areas have their own terminology and the lighting sector is no exception. In today's article we will explain the differences between three key concepts, used to define the characteristics of lamps and lighting devices, and which can sometimes lead to some confusion.
Luminous flux, luminous intensity and illuminance are different aspects, but they depend on each other to determine the best light levels.
Luminous flux
The luminous flux is composed of all the radiation that is emitted by a light source in all directions and perceived by the human eye. The unit of measurement for luminous flux is the lumen (lm).
Light intensity
Luminous intensity is the intensity of the luminous flux from a light source, projected in a specific direction. The unit of measurement for luminous intensity is the candela (cd).
illuminance
Illuminance is used when we want to calculate the amount of light that falls on a surface at a certain distance. The unit of measurement for illuminance is the lux (lx).
We hope that this article has helped to clarify any doubts regarding these concepts and measurement units.
Luminous flux, luminous intensity and illuminance are different aspects, but they depend on each other to determine the best light levels.
Luminous flux
The luminous flux is composed of all the radiation that is emitted by a light source in all directions and perceived by the human eye. The unit of measurement for luminous flux is the lumen (lm).
Light intensity
Luminous intensity is the intensity of the luminous flux from a light source, projected in a specific direction. The unit of measurement for luminous intensity is the candela (cd).
illuminance
Illuminance is used when we want to calculate the amount of light that falls on a surface at a certain distance. The unit of measurement for illuminance is the lux (lx).
We hope that this article has helped to clarify any doubts regarding these concepts and measurement units.