Accession Number : ADA328485

Title :   Extended Use of Night Vision Goggles: An Evaluation of Comfort for Monocular and Biocular Configurations.

Descriptive Note : Final rept.,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE

Personal Author(s) : CuQlock-Knopp, V. G. ; Sipes, Dawn E. ; Torgerson, Warren ; Bender, Edward ; Merritt, John O.

PDF Url : ADA328485

Report Date : JUL 1997

Pagination or Media Count : 59

Abstract : Forty-four military participants were tested in a field experiment to compare the relative discomfort experienced when monocular versus biocular night vision goggles (NVGs) were worn for an extended period of time. Participants traversed wooded terrain to reach various stations where they performed a variety of military and field craft tasks. The total test time was 4 hours. The participants rated their psychological and physiological feelings of discomfort at the completion of the test and again the following evening. Objective measures of NVG optical adjustments were also recorded. The participants who wore the biocular goggle reported a higher incidence of tight neck muscles than did the participants who wore the monocular goggle. However, no other significant differences in discomfort were found that could be attributed to the ocular configuration of the goggles. All participants complained about discomfort from the head harness.

Descriptors :   *NIGHT VISION DEVICES, *GOGGLES, TEST AND EVALUATION, OPTICAL PROPERTIES, HUMANS, FIELD TESTS, CONFIGURATIONS, NIGHT VISION, NECK(ANATOMY).

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE