Table 1.
Case 1 Treatment and Control condition lighting measurements.
| Location (Time) | Height, plane | Pos. |
Photopic lux TREAT. |
Photopic lux CONTROL. |
CCT (K) TREAT. |
CCT (K) CONTROL. |
Melanopic a-opic EDI (lux) TREAT. |
Melanopic a-opic EDI (lux) CONTROL. |
Melanopic DER TREAT. |
Melanopic DER CONTROL. |
|---|---|---|---|---|---|---|---|---|---|---|
|
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
Mean ±
SD |
|||
| Living area (Day) | 52'', vert x 4 | A | 100.90 ± 66.87 |
130.09 ± 74.85 |
5,605 ± 364 |
4,592 ± 751 |
88.54 ± 60.25 |
106.23 ± 77.11 |
0.87 ± 0.03 |
0.78 ± 0.11 |
| 72'', horiz | A | Missing | 303.25 | Missing | 4,023 | Missing | 200.50 | Missing | 0.66 | |
| Living area (Evening) | 52'', vert x 4 | A | 28.37 ± 21.20 |
34.82 ± 20.43 |
2,836 ± 111 |
3,728 ± 204 |
12.65 ± 10.00 |
22.02 ± 14.16 |
0.44 ± 0.02 |
0.62 ± 0.04 |
| 72'', horiz | A | 167.16 | 185.97 | 2,995 | 3,802 | 75.44 | 112.66 | 0.45 | 0.61 | |
| Kitchen (Day) | 52'', vert x 4 | B | 103.98 ± 78.39 |
192.52 ± 189.91 |
5,343 ± 292 |
4,904 ± 1,946 |
91.85 ± 75.82 |
183.39 ± 224.75 |
0.86 ± 0.05 |
0.80 ± 0.22 |
| 72'', horiz | B | 182.14 | 289.49 | 5,841 | 3,077 | 160.8 | 150.54 | 0.88 | 0.52 | |
| Kitchen (Evening) | 52'', vert x 4 | B | 69.07 ± 40.14 |
130.92 ± 107.62 |
3,482 ± 867 |
4,666 ± 2,230 |
44.51 ± 40.47 |
118.58 ± 136.76 |
0.58 ± 0.17 |
0.75 ± 0.25 |
| 72'', horiz | B | 171.02 | 343.24 | 3,137 | 2,849 | 84.46 | 154.88 | 0.49 | 0.45 | |
| Bathroom (Day) | 52'', vert x 4 | C | 147.40 ± 103.61 |
203.14 ± 131.15 |
5,032 ± 452 |
5,602 ± 1,552 |
120.92 ± 94.37 |
198.35 ± 155.88 |
0.79 ± 0.06 |
0.91 ± 0.15 |
| 72'', horiz | C | 333.71 | 226.41 | 5,560 | 3,354 | 272.65 | 133.36 | 0.82 | 0.59 | |
| Bathroom (Evening) | 52'', vert x 4 | C | No blinds in bathroom.a | |||||||
| 72'', horiz | C | |||||||||
| Study (Day) | 52'', vert x 4 | E | 118.12 ± 73.84 |
145.76 ± 133.88 |
5,386 ± 402 |
4,512 ± 1,267 |
100.03 ± 67.58 |
124.30 ± 141.52 |
0.83 ± 0.05 |
0.75 ± 0.15 |
| 72'', horiz | E | 354.08 | 440.37 | 5,858 | 3,308 | 303.58 | 244.31 | 0.86 | 0.55 | |
| Study (Evening) | 52'', vert x 4 | E | 72.22 ± 36.35 |
27.01 ± 4.74 |
2,838 ± 88 |
2,793 ± 79 |
30.66 ± 16.26 |
11.85 ± 2.40 |
0.42 ± 0.02 |
0.44 ± 0.02 |
| 72'', horiz | E | 221.18 | 288.62 | 2,936 | 2,966 | 95.94 | 135.04 | 0.43 | 0.47 | |
| Bedroom (Day) | 52'', vert x 4 | F | 68.74 ± 43.53 |
235.54 ± 161.86 |
5,408 ± 373 |
5,458 ± 1,027 |
59.90 ± 43.10 |
220.64 ± 176.84 |
0.87 ± 0.05 |
0.88 ± 0.12 |
| 72'', horiz | F | 264.36 | 355.77 | 5,970 | 4,526 | 228.21 | 267.49 | 0.86 | 0.75 | |
| Bedroom (Evening) | 52'', vert x 4 | F | 23.38 ± 6.59 |
60.00 ± 30.10 |
2,785 ± 102 |
3,051 ± 342 |
9.58 ± 2.70 |
29.44 ± 11.64 |
0.41 ± 0.02 |
0.51 ± 0.06 |
| 72'', horiz | F | 241.06 | 223.10 | 2,972 | 3,566 | 105.22 | 128.30 | 0.44 | 0.58 | |
| Bedroom (Evening; lamp only)b | 52'', vert x 4 | F | 22.31 ± 20.98 |
2,153 ± 126 |
6.43 ± 5.72 |
0.30 ± 0.05 |
||||
| 72'', horiz | F | 28.38 | 2,164 | 8.36 | 0.29 |
CCT, correlated color temperature; EDI, Equivalent Daylight Illuminance; DER, Daylight Equivalent Ratio; Pos., Position. Only the melDER is shown here; DER values for the other photoreceptors, found in Supplementary Materials, can be calculated by dividing the α-opic EDI value by the photopic lux provided.
The aim of the intervention was to increase the melEDI and DER during the day and decrease them during the evening during the Treatment compared to the Control intervention. This was typically associated with a daytime increase and evening decrease in CCT during the Treatment.
Average calculations found in text generated using 72'' measurements.
As evening light measurements were taken with window blinds closed, to approximate night time lighting conditions, measurements were not possible in locations without blinds.
An additional measure that was not captured in the Control condition.