NIGHT VISION DEVICES

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NIGHT VISION DEVICES
Night Vision Goggles AN/PVS-5
Night Vision Goggles AN/PVS-7A and B
Drivers Vision Enhancer Drivers Display Module
Drivers Vision Enhancer Sensor Assembly
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NIGHT VISION DEVICES
Motivational Statement
In order for the motor transport operator to have
the ability to support 24-hour mission, they must
be able to operate under limited or no-light
conditions. These night vision systems afford
the driver the capability to safely operate their
vehicle at the pace that is required on the
modern battlefield. These devices also afford
the driver a passive defense measure that may
allow movement with reduced risk of enemy
detection.
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Lesson Objective
Terminal Learning Objective (TLO)
At the completion of this lesson you, the
student, will be able to demonstrate your
knowledge in identifying the operational steps
necessary in placing the night vision goggles
(AN/PVS-5 or AN/PVS-7), and the drivers vision
enhancer (AN/VAS-5(V)2) into operation by
correctly responding to instructors questions.
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NIGHT VISION DEVICES
NIGHT VISION DRIVING
Avoiding detection is critical when you are
operating in any threat environment. Your
ability to avoid detection by threat forces at
night can be enhanced by the use of Night
Vision Enhancement Devices.
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NIGHT VISION DEVICES
NIGHT VISION DRIVING
Threat forces consider darkness and advantage.
They do not discontinue operations at night, but
continue to operate using night vision devices.
Most threat night vision devices are infrared and
include driving aids on vehicles.
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NIGHT VISION DEVICES
NIGHT VISION DRIVING
Night vision devices make an object more visible
during periods of low light. Their performance is
directly related to the amount of light
available, such as starlight and moonlight.
Night vision systems are either worn by an
individual or vehicle-mounted.
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NIGHT VISION DEVICES
EQUIPMENT DESCRIPTION
CAUTION This equipment is a precision
electro-optical instrument and must be handled
carefully. Keep caps on objective lens and
eyepiece lens when not in use.
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NIGHT VISION DEVICES
WARNING
NVG tubes contain toxic material. If they break,
be extremely careful to avoid inhalation of the
phosphor screen material. If the screen material
comes in contact with the skin, wash as soon as
possible with soap and water. If phosphor screen
material is inhaled or swallowed, induce vomiting
and see a doctor as soon as possible.
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NIGHT VISION DEVICES
Preparation for use

• Remove goggles from carrying case
• Ensure rotary knob is in the OFF position
• Remove BA-5567/U lithium battery cap or
  BA-3058/U alkaline battery cap(s). Insert
  lithium battery with recessed () side in first.
  Insert alkaline batteries with flat (-) end in
  first.

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NIGHT VISION DEVICES
Preparation for use

• Replace battery cap and tighten firmly to
• ensure watertight seal.
• Snap headstrap to face mask making sure
• all straps are extended to their maximum
• lengths.
• Remove eyepiece lens caps and objective lens
• caps.
• Loosen lever clamp and adjust monocular
• for proper distance between eyes.
• Tighten clamp.

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NIGHT VISION DEVICES
Preparation for use

• Loosen clamp knobs and adjust binocular
• assembly until eyepieces are located a
• comfortable distance from your eyes with
• proper tilt. Tighten both clamps.
• Tighten rotary switch setscrew with
• socket-head screw key.

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NIGHT VISION DEVICES
Preventive Maintenance Checks and Services (PMCS)

• Before Operation
• During Operation
• After Operation

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NIGHT VISION DEVICES
Routine checks

• Clean outside of goggles
• Check for missing or damaged knobs.
• Check for loose hardware, including rotary
• switch knob setscrew.
• Check for worn or damaged parts

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NIGHT VISION DEVICES
WEARING GOGGLES
Put on neck cord, remove the eyepiece lens cap,
and then face downward.
Place goggles head strap on your head, grasp head
strap horizontal band adjustment with both hands
and slowly pull band adjustments until face mask
cushion just touches your face. Continue pulling
straight back on straps until goggles feel snug.
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NIGHT VISION DEVICES
WEARING GOGGLES

• With your head still bent, grasp vertical band
  adjustment and pull until snug.
• Lift head to normal viewing position and make
  final adjustments on all bands until you have a
  comfortable stable fit.
• Remove objective lens caps.

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NIGHT VISION DEVICES
PUTTING ON THE GOGGLES
Using the steps just discussed, the student will
now don the goggles.
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Night Vision Goggles Practical Exercise
State the operational steps involving the
AN/PVS-5 and AN/PVS-7 Night Vision Goggles.
1. Remove goggles from carrying case.
2. Ensure Rotary switch is in the OFF position.
3. Install the applicable battery and close cap
to ensure watertight seal.
4. Remove the eyepiece lens cap.
5. Don the goggles, making necessary adjustments
to ensure a snug and comfortable fit.
6. Remove objective lens cap
7. Apply power
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NIGHT VISION DEVICES
PURPOSE OF THE DRIVERS VISION ENHANCER

• Provides vehicle operators with capability to
  see during periods of degraded visibility.

• Allows vehicle operators to continue driving in
  smoke, dust, haze and some other weather-related
  conditions.

• Provides capability of driving without emitting
  any visible light.

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NIGHT VISION DEVICES
DVE OPERATIONAL STEPS
1. Start the vehicle 2. Set power switch to
ON position. 3. Press FORWARD POSITION on
control box. 4. Ensure VIDEO switch is in
desired position. 5. Adjust the seat and
display module to eye level. 6. Adjust DISPLAY
BRIGHTNESS. 7. Ensure SENSOR LEVEL and GAIN
knobs are in full CCW position. 8. Select
scene polarity. 9. Position SENSOR using
POSITION CONTROL switch. 10. Operate vehicle
while relying on DVE for navigation. 11. Shutdown
engine.
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NIGHT VISION DEVICES
WARNING
If the contrast of the viewed scene is changing
so rapidly that it prevents the driver from
safely maintaining a constant speed (driving from
sunlight to shade or shade to sunlight, or
starting up a hill or starting down a hill) then
the driver should slow the vehicle, or stop
immediately, if necessary, in order to continue
driving in a safe manner. The AUTO LEVEL mode
does not react instantly, but requires one or two
seconds to compensate. Do not attempt to adjust
the image manually. The automatic level feature
will adjust to the best image faster than it can
be adjusted manually.
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NIGHT VISION DEVICES
DVE CONTROLS
Power switch
Polarity switch
Display brightness control
Sensor level
Sensor gain
Video sensor/ext
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NIGHT VISION DEVICES
CONTROLS
No video indicator
Position control switch
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NIGHT VISION DEVICES
SUMMARY

• NIGHT VISION GOGGLES (NVG)
• - AN/PVS-5
• - AN/PVS-7

• DRIVERS VISION ENHANCER (DVE)
• - DRIVERS MODULE
• - SENSOR ASSEMBLY

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