Table 1 Characteristics of the used light sources
Light source | Correlated colour temperature (K) | Illuminance on the work plane (in lx)a | Chromaticity coordinates 1931 CIE 28 (x, y) |
|---|---|---|---|
Fluorescent (18 W) | 3000 k | 510 | 0.453, 0.397 |
Fluorescent (18 W) | 6500 k | 501 | 0.447, 0.422 |
Fluorescent (18 W) | 17,000 k | 506 | 0.450, 0.440 |