 |
-
Built-in HyperGen or Gen 3 Image Intensifier Tube (IIT), high FOM equivalent to Gen. 3 and XD-4.
-
Integrated power supply, provides Automatic Brightness Control (ABC) and Bright Source Protection (BSP) to guard against exposure to over brightness (Automatically shut down to protect IIT).
-
Built-in 5mW infrared illuminator for illuminating in the totally dark places.
-
Long eye relief distance, no need to adjust it.
-
Various optional C-mount objective lenses (4X, 10X or others) are interchangeable for long distance viewing.
-
Compact, endurable construction, light weight, waterproof and easy operation.
|
|
|
|
Model
|
NVS 7-2/XT
|
NVS 7-3/XT
|
|
Image Intensifier Tube (IIT)
|
Image Intensifier Tube |
18 mm HyperGen
|
18mm
Gen 3
|
| Grade |
XT
|
| Photocathode operating diameter, mm |
18
|
| Photocathode type |
S-25
|
GaAs
|
| Resolution, min, Lp/mm |
57-64
|
| Photocathode sensitivity, µA/lm |
600-750
|
1200 above
|
| Luminous Gain, fL/fc, min |
40,000 fl/fc at 10-6 fcd
|
| Image magnification |
1
|
| Dark background brightness, max. cd/m² |
1.5x10-3
|
| Signal-to-noise ratio, min. |
20-23
|
20-24
|
| Current consumption, max, mA |
16
|
| Mean time before failure, hours |
10,000
|
| Keep time, years |
15
|
| Magnification |
1x (can add 4x lens directly, option)
|
| Field of view |
40°
|
| Objective focal length, mm |
25 ~ ∞
|
| Objective F number |
1.2
|
| Eye relief, mm |
25
|
| Interpupillary distance, mm |
57-73
|
| Focus range, m |
0.25
|
| Dioptric correction |
±5
|
| Power supply |
Standard AA batteries *2
|
| Battery life, hours |
80 (I/R off) above
30 (I/R on) above
|
| Low battery indicator |
V
|
| I/R ON indicator |
V
|
| Dimensions (include 1X lens), mm |
Approx. 135x120x55
|
| Weight (include 1X lens), g |
<430
|
|
|
