Night Optics Falcon 6x Gen 3 Gated Long-Range Night Vision Binocular - Manual (Page 17)

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DIOPTER. A unit of measure used to define eye correction.
Adjustments to the diopter adjustment will provide a clearer image
in each eye.
EDGE GLOW. This is a defect in the image area of the NVG.
This defect is a bright area (sometimes sparkling) in the outer
portion of the viewing area.
EMISSION POINT. A steady or fluctuating pinpoint of bright light
in the image area and does not go away when all light is blocked
from the objective lens of the goggle. The position of an emission
point within the image area of the goggle does not move. An
emission point should not be confused with a point light source in
the distance.
FIXED-PATTERN NOISE. This is a cosmetic blemish in the
image area characterized by a faint hexagonal (honeycomb)
pattern throughout the viewing area that most often occurs at
highlight levels when viewing very bright lights. Fixed-pattern
noise is inherent in the structure of the fiber optics and can be
seen in every image intensifier if the light level is high enough.
FLASHING. This is a defect in the image area of the NVG. The
image appears to flicker or flash.
FLICKERING. See “flashing”.
HIGHLIGHT CUTOFF. The goggles will automatically cut off
after 70
±
30 seconds of operation in daylight or bright roomlight.
Individual bright lights (headlights, flashlights, or other
concentrated light sources) will not actuate the highlight cutoff
function unless focused directly on the highlight detector located
on the front of the goggles.
IMAGE INTENSIFIER. An electro-optical device that detects and
amplifies ambient light to produce a visual image.