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2.4.3.1. Eyepiece Distance Adjustment
In certain circumstances you would want use only One Eye to look
through the NVG. Be it to retain your natural night vision in your eye
when conducting dynamic maneuvers when you have to transition
between dark and lit environments. Or to look through a sight which
is affixed to your weapon.
FIGURE 2.19. FLIPPING ONE EYEPIECE OUT OF VIEW
(1) Select the eyepiece you would like to move out of the field of
view with the hand that is on the same side as the eyepiece.
(2) Gently push it upwards with your hand so that it locks in position.
(3) Your flipped up to the side eyepiece will turn off automatically in
order to prevent light bleed from the eyepiece.
(4) Conduct your maneuver as normal.
(5) By lowering the previously flipped up to the side eyepiece, the
eyepiece will power on again.
2.4.4. IR SOURCE OPERATIONS
WARNING
The IR source is a light that is invisible to the unaided eye for
use during conditions of extreme darkness. However, the light
from the IR source can be detected by the enemy using night
vision devices.
NOTE
The sharpest image will be observed only when the objective
lens and eyepiece lens are properly focused.
(5) Rotate the diopter adjustment for the clearest view of the image
intensifier screen.
NOTE
Any readjustment of eye relief requires readjustment of the
diopter.
(6) Adjust the eye relief distance by depressing the side buttons
(Figure 2.17.) (or press down on side lever on metal mount) and
sliding goggles fore or aft to obtain a full field-of-view of the image.
Reset the diopter adjustment for best image.
(7) Adjust the objective lens focus (Figure 2.1.) while observing an
object until the sharpest image is obtained.
(8) In order to adjust the interpupillary adjustment to be in line with
the distance between your eyes. Us the side knobs as illustrated in
Figure 2.18.
FIGURE 2.18. INTERPUPILLARY ADJUSTMENT
EYEPIECE DISTANCE ADJUSTMENT
(9) To flip up, grasp the helmet tilt and flip-up assembly and rotate
upward and rearward until the latch is firmly engaged.
(10) To flip down, grasp the helmet tilt and flip-up assembly and
rotate downward and forward until the latch is firmly engaged.
(11) The NVG will turn back on automatically.
Summary of Contents for ATN PS31
Page 5: ...iii 1 1 CHAPTER 1 INTRODUCTION ...
Page 11: ...2 1 CHAPTER 2 OPERATING INSTRUCTIONS ...
Page 28: ...3 1 CHAPTER 3 MAINTENANCE INSTRUCTIONS ...
Page 32: ...Notes Notes ...
