Lux
A standard for measuring light, is the number that are usually offered by the manufacturers for not providing any additional information to compare one product with another. Lux is the International System unit of illumination, equal to one lumen per square meter. Also called candle-meter, meter-candle. Primarily used for projectors with lower lumen output.
|
Luminance |
Abbr. |
Example |
|
0.00005 lux |
50 µlx |
Starlight |
|
1 lux |
|
Moonlight |
|
400 lux |
|
A brightly lit office |
|
400 lux |
|
Sunrise or sunset on a clear day |
|
1000 lux |
1 klx |
Typical TV studio lighting |
|
32000 lux |
32 klx |
Sunlight on an average day (min.) |
|
100000 lux |
100 klx |
Sunlight on an average day (max.) |
http://www.projectisle.com.au/projector-guide-brightness.asp
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