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LYNX-21
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2+ or 3-d generation night vision pocketscope.
High technology state-of-the-art high resolution light amplification device. Popular because of its small size, light weight, and fine image.
Night surveillance applications. Indispensable professional equipment for Police, Coast Guard, Security, Detectives, Hunters...
- Small size and light weight
- Easy to operate
- Diopter adjustment
- Optical magnification is changeable by lens replacement
- Handy strap for user's hand
- Only one CR 123A lithium battery for power supply are needed
- High reliability
- Protection against occasion bright lights
- Aluminum alloy housing
- Soft carrying case for storage and transportation
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The device appearance:
LYNX-21 device
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Technical specification
| Optical |
| Magnifications, times |
2.5 |
| Field of view, 0 |
20 |
| Angular resolution at the center, minutes |
1.5 |
| Focusing range, m |
1 to infinity |
| Range of working illumination, lx |
10-4 to 1.0 |
| Diopter adjustment |
±4 |
| Electrical |
| DC Voltage, V |
2.8 ± 0.8 |
| DC Current consumption max, mA |
16 |
| Type of Power Source |
One 3V standard lithium battery CR 123A |
| Life of battery at 200C, hours |
no less then 20 |
| Mechanical |
| Overall dimensions, mm |
151х70х50 |
| Weight, kg |
0.520 |
| Temperature |
Temperature, 0С
- in operation
- storage for: 4 hours
- long term |
from -50 to + 55
from -55 to +60
from -35 to + 35 |
| Lens |
| Focal Length, mm |
50 |
| Relative Aperture, (f/D) |
1 : 1.3 |
| Objective Lens Diameter, mm |
38.5 |
| Aperture adjustment |
Manual |
| Focus adjustment |
Manual |
| Mounting |
C |
Image intensifier tube |
| Generation |
2+ |
3 |
| Photocathode type |
S25 |
GaAs |
| Input window |
Glass |
Glass |
| Output window |
Fiberoptics |
Fiberoptics |
| Photocathode diameter, mm |
18 |
18 |
Photocathode sensitivity
White light, ( A/lm)
spectral at  =850 nm, mA/mW |
500
35 |
1000
70 |
| Light gain lm/lm |
25000 |
20000 |
| Resolution (lp/mm) minimum: |
36 |
36 |
| Brightness of dark background cd/m2, max |
1.5 10-3 |
510-3 |
Contrast transfer coefficient at spatial
frequency, lines/mm:
2,5 pl/mm
7,5 pl/mm
15 pl/mm |
0.83
0.58
0.28 |
0.8
0.5
0.2 |
| Signal to noise ratio, minimum |
45 |
50 |
Overall dimensions, mm
Diameter
Length |
43.0
29.4 |
43.0
29.4 |
| Weight, g |
100 |
100 |
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