Illumination mode
Front side illumination (u = fr)
1
0
Rear side illumination (u = r)
0
1
Simultaneous illumination (u = s)
1
1
| Illumination mode |
|
|
| Front side illumination (u = fr) | 1 | 0 |
| Rear side illumination (u = r) | 0 | 1 |
| Simultaneous illumination (u = s) | 1 | 1 |