Aviators in combat may be subjected to a variety of noxious light stimuli. Filters and other eye protective devices may be used to counter these threats. At night, filters may be used in conjunction with image intensification devices (e.g., night vision goggles) to provide useful low-light vision as well as protection from deleterious light sources (e.g., lasers, pyrotechnics, nuclear fireballs, etc.). Technologies may be combined in a single, integrated head gear unit. The present study was performed in order in consider the effects on visual acuity after reducing night vision goggle luminous output from 0-99 percent. A range of target contrasts and ambient illumination levels was investigated. AN/PVS-5A goggles were selected based upon their compatibility with current phosphor display technology and their current ubiquity within aviation units. Visual acuity was assayed behaviorally because of its critical importance in flying performance. The results of the study provide normative acuity data with goggles alone and document the effects on goggle visual acuity with reduce goggle luminances as might be produced by protective materials placed between the goggles and the eyes. Keywords: Light filters; Human factors engineering; Night vision devices. (KT)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Attenuating the Luminous Output of the AN/PVS-5A Night Vision Goggles and Its Effects on Visual Acuity


    Contributors:
    R. R. Levine (author) / C. E. Rash (author)

    Publication date :

    1989


    Size :

    36 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Measuring observers' visual acuity through night vision goggles

    Pinkus, A. / Lee Task, H. | Tema Archive | 1998


    Visual acuity versus field of view and light level for night vision goggles (NVGs) [2218-10]

    Donohue-Perry, M. M. / Task, H. L. / Dixon, S. A. et al. | British Library Conference Proceedings | 1994



    Cockpit Readiness For Night Vision Goggles

    Scholl, Marija S. / Scholl, James W. | SPIE | 1987


    Cockpit readiness for night vision goggles

    Scholl, Marija S. / Scholl, James W. | NTRS | 1987