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