The Luminance Curve System (LCS) is used in many contries. It provides quick answers through simple to use graphs. To assess the glare situation, the most critical work place within the room is looked at. From here, the ...
| LCS Index | Illuminance on Working Plane [lux] | |||||||
|---|---|---|---|---|---|---|---|---|
| A | 2000 | 1000 | 500 | <=300 | ||||
| B | 2000 | 1000 | 500 | <=300 | ||||
| C | 2000 | 1000 | 500 | <=300 | ||||
| D | 2000 | 1000 | 500 | <=300 | ||||
| E | 2000 | 1000 | 500 | <=300 | ||||
| Graph | a | b | c | d | e | f | g | h |
Example of a set of luminance curves
The LCS is based on experimental data from a large group of observers.
| UGR | 15.5 | 17.0 | 18.5 | 20.0 | 21.5 | 23.0 | 24.5 | 26.0 |
|---|---|---|---|---|---|---|---|---|
| LCS | A | B | C | D | E | F | G | H |