The equipment is used by the Driver of T-55 Tank. A pair of Black head out Lamps is also Provided with this equipment for mounting externally on the tank for use under adverse conditions of ambient illumination and terrain.
System Specifications
Magnification : 0.9 ± 0.1
Field of View :
Horizontal 45° ± 1°
Vertical 18° ± 1°
Objective
Entrance Pupil Dia : 50mm
f-number : f/1.2
Effective focal length : 59.96mm
Eye Piece
Type : Fixed Focus Binocular
Effective Focal Length : 45.8mm
Image Intensifier Tube
Micro channel image intensifier inverter tube xx 1332 or equivalent.
Resolution (at the centre) 1.5 milliradian under starlight conditions (10-3 lux) using
USAF-1951 Bar target resolution chart of Low Contrast Ratio 1.6:1(D=0.20)
Power Supply
Type : DC-DC Converter
Input : 22 – 30 V DC
(From Tank Supply)
Output : 7.2 ± 0.1V DC
Ripple : 3%
Weight : 6.5 Kg.
Dimensions
Height : 380mm
Width : 155mm
Depth : 135mm
Range : 100M for `B’ type vehicles
Environmental Specifications
Operating Temperature : -30° to +50°C
Storage Temperature : Recommended +20°C
