No . 94 - 18 Flicker Detection Through 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...

USAARL Report No. 94-28 Switching from Forward-Looking to Night Vision Goggles: Transitory Effects on Visual Resolution

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...

A comparison between phosphors for aviator's night vision imaging system.

BACKGROUND The visual display on night vision goggles (NVG's) is green and isochromatic (P22 phosphor). Future systems are expected to use a P43 phosphor which has a narrower visible spectrum and is yellowish green, while the P22 is deeper green. In transitioning to the P43, some NVG's may have P22 and P43 phosphors paired in the same NVG. The purpose of this study was to evaluate the suitabili...

Visual Acuity and Stereopsis with Night Vision Goggles