Civilian use of night vision goggles.

No . 94 - 17 Vernier Acuity Through Night Vision

Night vision goggles (NVG’ s) are being used increasingly in military and civilian environments. Despite the use of these devices, relatively few tests exist to assess visual performance through NVG’ s. Hyperacuity tasks may provide a sensitive index of performance through night vision devices. In this study, grating vernier acuity was measured through NVG’ s. AS reported previously, a power la...

Image Contrast and Visual Acuity Through Night Vision Goggles

Night vision goggles (NVGs) intensify ambient illumination making it possible to see in the dark despite insufficient light for normal vision. NVGs are used for military and civilian operations, and as visual aids for night blindness. The quality and quantity of vision achieved through NVGs depends on several factors including the intensity of ambient radiation, the integrity of NVG electro-opt...

Visual Acuity and Stereopsis with Night Vision Goggles

No . 94 - 18 Flicker Detection Through Night Vision Goggles

Night vision goggles, human factors aspects--a questionnaire survey of helicopter aircrew.

Night vision goggles have become an essential component of military aviation. They provide superior visual capability over unaided night vision, but there are several inherent limitations associated with human factors and systems limitations. This study used a questionnaire survey of Army helicopter aircrew to investigate the incidence of human factors problems which continued after NVG use, wi...