87 page NIGHT VISION GOGGLES NVG Presentation on CD

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TITLE

Night Vision Goggle Academics, 87 pages (slides) 

SLIDE TOPICS, SUBTOPICS and CONTENTS:

Night Vision Goggle Academics
REFERENCES
Aircrew Training Manual TC 1-214
Commander’s Guide TC 1-210
TM 1-1520-238-10 w/CH9
NVG –10 w/CH2
Airworthiness Release, Dated July 99
Night Flight Techniques & Procedures    TC 1-204
NVG ACADEMICS

  Vision, depth perception, and night vision orientation
  Hemispherical illumination
  Aircraft modification requirements for NVG flight
  Night terrain interpretation
  NVG navigation, to include map preparation
  Night tactical operations, to include lighting
  NVG ground and air safety
VISION
    Vision is the most important sense used in flight.  During day or night, IMC or VMC, vision is the sense that makes crew members aware of the position of their aircraft in space.  The eyes can rapidly identify and interpret visual cues during daylight.  During darkness, however, visual acuity is decreased.  Night vision devices improve the capability of the human eye to see at night.
ANATOMY OF THE EYE
THREE TYPES OF VISION
Photopic Vision:  Experienced during daylight or when a high level of artificial illumination exist.
Mesopic Vision:  Experienced at dawn, dusk, and during full moon light.
Scotopic Vision:  Experienced under low light levels.
NIGHT BLIND SPOT
VISUAL PROBLEMS
DISTANCE ESTIMATION AND DEPTH PERCEPTION
MONOCULAR CUES
HEMISPHERICAL ILLUMINATION
LIGHT SOURCES
  Natural:  The moon is the most important source of natural light at night.  The stars provide some background illumination.
    Lunar light:  The moon provides the greatest amount of ambient light at night.
    Solar:  Ambient solar light is usable for a period following sunset and before sunrise.

Artificial:  Lights from cities, automobiles, fires, and flares are normally sources of small amounts of illumination.
PHASES OF THE MOON
New Moon -  eight days, 0 to 50 percent illumination
First Quarter Moon - Seven days,50 percent to slightly less than 100 percent
Full Moon - Begins at 100 percent, ends seven days later at 50 percent
Third Quarter Moon - Seven days, begins 50 percent, ends 2 percent
METEOROLOGICAL EFFECTS
  Clouds
  Fog, Dust, Haze, and Smoke
  Lightning
INTRODUCTION TO  NIGHT VISION GOGGLES
NVGs greatly improve night vision, but they require some degree of light to function.
HISTORY
AN/PVS-5
AN/PVS-5 CUT AWAY
GM-6
ANVIS
AN/AVS-6
   
COMPONENTS
BATTERIES
WARNING
DO NOT HEAT, PUNCTURE,  DISASSEMBLE,
SHORT CIRCUIT, ATTEMPT TO RECHARGE,
OR OTHERWISE TAMPER WITH THE
BATTERIES.

DUAL BATTERY PACK G1 / G2 / G3
CLIP-ON POWER SOURCE (COPS)
OPERATIONAL SEQUENCE
NIGHT VISION GOGGLES
Image Intensifier is an electronic device that amplifies light energy. 
EYEPIECE LENS
CAUTION
ANVIS IS A PRECISION ELECTRO-OPTICAL INSTRUMENT, HANDLE CAREFULLY.  KEEP OBJECTIVE AND EYEPIECE LENS CAPS ON WHEN NOT IN USE.

COUNTERWEIGHT SYSTEM
Weight Bag
Counterweights
WEIGHT BAG
NECK CORD
WARNING
Do not attach the lanyard to the flight helmet
Note
While Hanging the ANVIS by the neck cord, install lens caps on to protect the lenses from being scratched twist the neck cord to allow the NVGs to hang high on the chest.
ANVIS CHARACTERISTICS
PASSIVE SYSTEM
VISUAL ACUITY
ASTIGMATISM
MAGNIFICATION
DEPTH PERCEPTION
FIELD OF VIEW (FOV)
ANVIS CHARACTERISTICS (CONTINUED)
FOCAL RANGE
TEMPERATURE RANGE
STOWABLE ON THE FLIGHT HELMET
WEIGHT
BREAKAWAY CAPABILITY
LIGHT SPECTRUM AND NVG SENSITIVITY
ANVIS MOUNT MECHANICAL CONTROLS
VERTICAL ADJUSTMENT KNOB
LOCK RELEASE BUTTON
BINOCULAR ASSEMBLY MECHANICAL CONTROLS
PIVOT AND ADJUSTMENT SHELF
EYE-SPAN KNOB
FORE AND AFT ADJUSTMENT KNOB
TILT ADJUSTMENT LEVER
MONOCULAR ASSEMBLY MECHANICAL CONTROLS
OBJECTIVE FOCUS RING
EYEPIECE FOCUS RING
OPERATIONAL CHECKS
CHECK MAINTENANCE FORMS AND RECORDS
INSPECT THE POWER PACK
INSPECT THE VISOR, MOUNT, POWER, CABLE, AND VISOR LINK
INSPECT THE BINOCULAR ASSEMBLY
PERFORM THE LOW-BATTERY INDICATOR TEST
MOUNT THE GOGGLES
APPLY PWR AND LOOK FOR GREEN GLOW IN BOTH EYEPIECES
CHECK FOR DEFECTS / BLEMISHES
AFTER OPERATION CHECKS
PLACE THE SWITCH IN THE OFF POSITION
REMOVE THE BATTERIES
STOW THE POWER PACK IN THE CARRYING CASE WITH THE POWER CABLE FACING UP
REPLACE THE LENS COVERS
ADJUST THE EYE-SPAN DISTANCE TO ALLOW THE BINOCULAR TO FIT INTO THE CASE
INSERT THE OBJECTIVE END FIRST INTO THE CASE
RECORD ANY DISCREPANCIES

WARNING
IF EYEGLASSES ARE WORN, THE UPPER RIMS OF THE EYEGLASSES MAY OBSCURE THE LOW-BATTERY INDICATOR.
LOW BATTERY INDICATOR
CAUTION
TO PREVENT DAMAGE TO THE I2, ALWAYS SET THE POWER PACK SWITCH POSITION OFF BEFORE CHANGING BATTERIES, CONNECTING THE POWER PACK TO THE VISOR OR MOUNTING THE ANVIS.
IF THE ANVIS IS FORCED ON TO THE MOUNT ASSEMBLY INCORRECTLY (UPSIDE DOWN OR BACKWARDS), DAMAGE TO THE VISOR MOUNT COULD RESULT.
CAUTION
DO NOT ATTEMPT TO FLIP-UP OF FLIP-DOWN THE BINOCULAR WITHOUT USING THE LOCK-RELEASE BUTTON.  THE BINOCULAR COULD BE DAMAGED OR MAY COME OUT OF THE MOUNT IF THE BUTTON IS NOT USED.
FLIP DOWN PROCEDURE
FLIP UP PROCEDURE
CAUTION
DO NOT EXPOSE THE ANVIS TO BRIGHT LIGHTS WHEN THE ANVIS HAS POWER. OPERATE ANVIS ONLY IN A DARKENED ENVIRONMENT.
NOTE
OSAP
        OPTICAL
            SIGHT
                ADJUSTMENT
                    POINT
EYESPAN ADJUSTMENT
FOCUSING THE NVG
FOCUSING THE NVG
Outdoor Focus
CAUTION
CAUTION
TYPES OF VISUAL DEFICIENCIES
OPERATIONAL DEFECTS
SHADING
NOTE
EDGE GLOW
FLASHING, FLICKERING OR INTERMITTENT OPERATIONS
COSMETIC BLEMISHES
BRIGHT SPOTS / EMISSION POINTS
BLACK SPOTS
CHICKEN WIRE
IMAGE DISTORTION
FIXED-PATTERN NOISE
IMAGE DISPARITY
OUTPUT BRIGHTNESS VARIATION
CLEANING STEPS
CAUTION
AIRCRAFT MODIFICATIONS
AIRCRAFT MODS
NIGHT NAVIGATION
Navigation is a difficult task to perform at night at terrain flight altitudes because the distance at which an object can be seen is reduced.  To ensure accurate navigation, aircrews must be able to identify man-made or natural features.  Detailed planning and teamwork are key to mission success.
NIGHT NAVIGATION
Navigation
    NOE flight
    Contour flight
    Low level flight
Radio Communications
Battlefield light sources
Obstructions
Terrain
En Route data
Altitude Changes
NIGHT NAVIGATION
Avoid:
Routes into brightly lit areas
Routes taking you near airports
Routes over areas with low contrast
    large bodies of water, fields, snow covered
Routes into low angle rising or setting moon
SUMMARY
Vision, depth perception, and night vision orientatioin
Hemispherical illumination
Aircraft modification requirements for NVG flight
Night terrian interpertation
NVG navigation, to include map preparation
Night tactical operations, to include lighting
NVG ground and air safety