obscurant agent (vision-restricting agent)

night-vision goggles (NVGs); night vision goggles (NVG)

NV (night vision) mount, NVG (Night Vision Goggles) mount

NV kit, NVG kit / Night Vision, Night Vision Goggles

argon beam obscurant laser

black obscurant smoke

colored obscurant smoke

crazing obscurant

obscurant

white obscurant smoke

multispectral obscurant

obscurant penetrating

smoke obscurant

agent / agent network / agents

CW agent (chemical warfare agent)

damage agent / damaging agent

field of vision

infrared night vision observation device

night (vision) sight

night vision device (NVD)

night vision kit

night vision sight

Starlight Scope (Night Vision Sight)

vision nil (zero)

all-round vision block

direct vision block

night-vision flip-up goggles

surveillance vision block

vision block

all-around vision

binocular vision

vision slit

video-frequency (vision) channel