| Classification of night vision image intensifier tube | OMNI III,IV |
OMNI II |
| Photocathode type | 18mm GaAs | 18mm S-25 |
| Photocathode sensitivity,typicaluA/lm |
≥1800 |
≥550 |
|
Resolution， typical, Ip/mm |
63-72 | 48-58/57-64 |
|
Luminous gain, typical, fl/fcd |
45000-55000 | 16000-25000 |
|
Signal-to-noise ratio, typical |
23:1 or better |
20:1 or better |
|
FOM, typical |
≥1500 |
≥1150 |
|
Tube reliability standard, hour |
12000 | 10000 |
|
Keeep time, typical, year |
15 | 10 |
| warranty,year | 2 | 1 |
