Description And Data; Description - ATN PS-22 Operator's Manual

1.2. DESCRIPTION AND DATA

1.2.1. DESCRIPTION

A. Purpose
the pS-22 is an effective night vision system that mounts forward
of an existing riflescope/spotting scope (further referred to as a
scope) adding night vision capabilities to daytime target acquisi-
tion platform. advisable dayscope magnification is 1X to 6X (2.5X
to 4X is optimum). the sight is installed and removed without af-
fecting boresight (permanent boresight alignment).
NOTE
The PS-22 can be installed also forward of viewfinders of va-
rious instruments to widen operating illumination range.
B. Principle of Operation
the pS-22 operation is based on the principle of electron-optical
intensification of light. the input fast catadioptric lens collects
available ambient light from source such as the moon, stars and
skyglow and focuses it on the image intensifier tube photocath-
ode. the tube amplifies the light and produces the viewable im-
age projected by the output lens from the tube screen into the
dayscope lens. thus the sight provides the capability for operator
to see through the scope at night.
C. Features and Limitations
the pS-22 has the following important features:
• Available with 2+, CGT, HPT or 3rd generation image intensi-
fier tube.
• Powered by a single CR 123A battery.
• Adjusts for lens focus.
• Is mounted on MIL-STD-1913/Picatinny rail or dayscope lens.
• Equipped with remote control.
• Is submersible to 10 m for 30 minutes.
• Filled with dry nitrogen to prevent internal fogging.
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