4.
SPECIFICATIONS OF DN-140
Image
intensifier
Gen.
1
Resolution
ln/mm
32ln/mm
Magnification,
X
2.8
Field of View, angl..,
degrees, not less
12
°
Lens
85mm,
F/2
Dioptric
correction
+3,
-4
Focus Range, m
0.6-
∞
Eyepiece focal length
15mm
Eyepiece relief distance
45mm
Power
supply
3V,
2AA
Battery life, hours
30 (at 20
°
C)
Dimensions,
mm
6.5x2.6x3.5
Weight, kg (complete set)
1.9
NOTE: As the design is being continuously improved some
descriptions may differ from those given above.
8
5. CONSTRUCTION
Pic. 1
1. Body
2. Eye-piece
3. Rubber Eye-piece Guard
4. Battery House Cover
5. IR Illuminator
6. Objective Lens
7. Objective Focus Ring
8. Weaver Weapon Mount and Tripod Mount
9. Windage/elevation Adjustments
10. On/Off Switch for the Unit and IR Illuminator
9
3
4
5
1
2
6
7
8
10
9
