A AN NIGHT VISION DEVICES
MYTHS OF MYTHS OF THETHE NIGHT NIGHT
VISION VISION DEVICESDEVICES
1. ONE SIZE FITS ALL
Head Mount
Helmet Mount
PROPER FIT HEAD MOUNT
• Loosen all straps (2” from end)• Snap front and rear snaps • With both hands pull neck pad and assembly over head
• Holding chin cup in place pull slack/ snug on top and side straps
• Adjust chin and vertical straps until tight
PPROPER FIT HELMET MOUNT
Nape Strap
Chin Strap
• Press release / remove mounting bracket
• Secure front and rear brackets with catch in the up position
• Remove strap slack / close buckle lever
• Tension the nape strap for stable fit• Secure NVD to mount bracket
2. NVD’S SELF ADJUST
•THE SHARPEST IMAGE WILL BE OBSERVED ONLY WHEN THE OBJECTIVE LENS AND EYEPIECE ARE PROPERLY FOCUSED
•THESE ADJUSTMENTS OPERATE INDEPENDENTLY AND MUST BE MADE SEPERATELY
ORDER OF ADJUSTMENTS
• Eye Relief
• Interpupillary Adjustment
(AN/PVS7’s only)
• Diopter Adjustment
• Objective Focus
** Any adjustment to the head strap requires eye relief adjustment
INTERPUPILLARY ADJUSTMENT
AN/PVS-7
EYE RELIEFSOCKET
RELEASE
BUTTON
• Comfortable distance
• Best visibility
DIOPTER ADJUSTMENTAN/PVS-7/14
DIOPTER ADJUSTMENT
Used to focus the eyes (with or without glasses) to the image intensification screen
Diopter Adjustment
OBJECTIVE LENS FOCUS KNOBAN/PVS-7/14
Adjust for sharpest view of image being viewed
Lens Focus
VARIABLE GAIN CONTROLAN/PVS-14
VARIABLE GAIN
AN/PVS14
Variable Gain
Adjusts the illumination input to the eye
FOR OPTIMUM PERFORMANCE
Adjust the television before turning the channels!!!