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15 Cards in this Set
- Front
- Back
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Symbol for Luminious Flux |
F |
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What is the unit F |
Lumen (Luminous Flux) |
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Abbreviation for lumen/luminous flux |
lm |
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Symbol for luminous Intensity |
I |
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units of I |
candela (luminous intensity) |
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Abbreviation for candela |
cd |
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Symbol for Luminance |
L |
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Units of L |
candela per meter squared (luminance) |
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Abbreviation for candela per meter squared |
cd/m2 |
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Symbol for Illuminance |
E |
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Units of E |
lux (Illuminance) |
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abbreviation for lux |
lx |
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E=I/d2 |
Illuminance (lux) = luminous intensity in candela over distance from the source in meters |
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E=F/A |
Illuminance in lux = Luminous flux (lumens) over the area |
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E = F x A / Uf x Mf |
Illuminance (lux) = lumens x area over utilisation factor x maintenance factor |
