Ocular of NVD
Nightwitness has a high quality wide angle ocular with magnification of 12,5 õ.
The dioptric correction is -4...+4 dtp, as well long eye relief allows for user who wear glasses to use
the unit with out removing them. Ocular is supplied with rubber eye guard which allows for proper and
steady position of the eye, witch is very important especially when the unit is used on a moving platform
(i.e. Boat, plane, vehicle). The rubber Eye piece can rotate 360° to allow for proper functionality with
either right or left eye. The ocular is design as video recording or interchangable adapter to allow for
Photo-, Video- and CCTV-camera.
HIGH-LIGHT CUT OFF CIRCUIT
Nightwitness is provided with a unique high-light cut off circuit to protect image intensifier tube.
‘Intellectual’ TTL sensor measures a luminance level directly on the photocathode surface. If it
exceeds the overload capacity for an Image Intensifier used in the device– blue LED in a field of
view warns an operator that after 5 – 7 seconds power supply of the device will be switched off.
When the luminance goes down below that level – the Image Intensifier power supply recovers
automatically. So the operator has plenty of time to protect the device from bright light sources and
at the same time not to lose the sight of an object to be controlled
UNIT STRUCTURE (con’t)
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Operation switches as well as the battery compartment and a place for wrist strap for NVD are
located on the back surface of the unit .
Moisture collector cartridge is located of the left side of the body of NVD.
The standard tripod socket 1/4" is located on the right side of the NVD.
OVERVIEW
The night vision device (NVD) Nightwitness is observational opto-electronic monocular, intended for
examining objects and orientation at night or under dark conditions. The unit utilizes a generation
2+XT or 3 image intensifier tube, which amplifies available moonlight, starlight or man-made light. The
device was designed to be easy to use and provide many years of operation.

Some of the typical activities where Nightwitness can be useful:

•Law enforcement
•Security
•Search and rescue
•Hunting
•Photography (dark room operation) or with camera adaptable feature
UNIT STRUCTURE
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