Illuminance

Illuminance is the total luminous flux incident per unit area. It refers to the amount of incident light.

Note that the expression for the amount of light "reflected" from a surface is luminance.

In SI derived units, it is measured in lux (lx) or candela steradian / metre squared

SI light units

Template:SI light units

Template:Standard-stubbg:Осветеност fi:Valaistusvoimakkuus ja:照度

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