Lighting uniformity

Lighting uniformity

The uniformity of illumination (d) on a given plane is determined as the quotient of the smallest measured illuminance value occurring on a given plane (Emin) to the average illuminance value on this plane (Eav):

where:

Eśr = (E1 + E2 + ... + En) / n; n - number of measurement points
E1 ÷ En - measurement results at successive measurement points

For continuous operations, it is assumed that the uniformity of illumination on the working plane should be at least 0.65.

For occasional activities and in staircases and corridors, it is assumed that the lighting uniformity should be at least 0.4.

FAQ:

How to calculate lighting uniformity?

The uniformity of illumination on a given plane is calculated as the quotient of the lowest measured illuminance value to the average illuminance on this plane. The detailed formula and measurement method are described above.

What lighting uniformity values are recommended for continuous activities?

For continuous activities, it is recommended that the uniformity of lighting on the working plane be at least 0.65.

What lighting uniformity values are recommended for occasional activities and for staircases and corridors?

For occasional activities and for staircases and corridors, it is recommended that the lighting uniformity be at least 0.4.

Lighting uniformity

FAQ:

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