Uniformity Ratio in Lighting Design

照明均匀度比

Uniformity ratio (U₀) = minimum lux ÷ average lux. EN 12464-1 requires U₀≥0.6 for offices and classrooms, U₀≥0.4 for warehouses. Higher uniformity = fewer dark spots, better visual comfort.

📊 Key Data

ApplicationRequired U₀ (Min/Avg)Standard
Offices≥0.6EN 12464-1
Classrooms≥0.6EN 12464-1
Retail≥0.4EN 12464-1
Warehouses≥0.4EN 12464-1
Corridors≥0.4EN 12464-1
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