A Proposal To Measure The Visual Acuity In Us Army And Us Air Force Pilots And Aircrew While Wearing The An Pvs 5 And Anvis Night Vision Goggles To Determine A Cause For Morbidity And Mortality Of Aircraft Mishaps PDF Download
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Author | : Warren Steven Silberman |
Publisher | : |
Total Pages | : 66 |
Release | : 1991 |
Genre | : |
ISBN | : |
Download A Proposal to Measure the Visual Acuity in U.S. Army and U.S. Air Force Pilots and Aircrew While Wearing the AN/PVS-5 and ANVIS Night Vision Goggles to Determine a Cause for Morbidity and Mortality of Aircraft Mishaps Book in PDF, ePub and Kindle
Author | : Kenneth Karl Knight |
Publisher | : |
Total Pages | : 66 |
Release | : 1995 |
Genre | : |
ISBN | : |
Download Proposal to Measure Stereoacuity of U.S. Air Force Aircrew While Using the AN/PVS-6 Night Vision Goggles for Use in Designing an Educational Program to Prevent Night Aircraft Mishaps Book in PDF, ePub and Kindle
Author | : United States. Congress. House. Committee on Armed Services. Subcommittee on Investigations |
Publisher | : |
Total Pages | : 128 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download Night vision goggles Book in PDF, ePub and Kindle
Author | : Garvin D. Chastain |
Publisher | : |
Total Pages | : 60 |
Release | : 1979 |
Genre | : Helicopters |
ISBN | : |
Download Effects of Fatigue from Wearing the AN/PVS-5 Night Vision Goggles on Skills Involved in Helicopter Operations Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 54 |
Release | : 1996 |
Genre | : Night fighting (Military science) |
ISBN | : |
Download Night Vision Goggle Field-expedient Visual Acuity Adjustment Procedures Book in PDF, ePub and Kindle
Author | : Samuel G. Shannon |
Publisher | : |
Total Pages | : 0 |
Release | : 1997 |
Genre | : Accidents |
ISBN | : |
Download U.S. Army Aviation Life Support Equipment Retrieval Program Book in PDF, ePub and Kindle
The relationship between night vision goggle (NVG) use in the U.S. Army and head/neck injury risk is unknown. A 10-year retrospective study of traumatic head/neck injuries among U.S. Army aircrew members wearing NVGs in rotary-wing mishaps was conducted by review of U.S. Army Safety Center and U.S. Army Aviation Epidemiology Data Register records. Among 704 cockpit aircrew members, 403 (57.2 percent) suffered some degree of injury during the mishap. Among the 403 injured crewmembers, 250 (62.0 percent) had head and/or neck injuries. A disproportionate number of cockpit aircrew members in nonsurvivable mishaps had head and/or neck injuries (87.0 percent) compared to those in survivable mishaps (19 percent). Crewmembers wearing NVGs had a significantly increased risk for head and/or neck, head only, and neck only injury. When stratified by type of NVG, and based on logistic regression models that included aircraft type (UH-60 versus other) and survivability as covariates, crewmembers wearing the AN/PVS-5 carried the burden of this injury risk (RR=2.01, Ci95-1.58.57). For crewmembers wearing the aviator's night vision imaging system (ANVIS), the risk of head and/or neck, head only, or neck only injury was not statistically greater than crewmembers not wearing NVGs (RR=l.22, c195=O.94,l.58). Aircrew wearing the older AN/PVS-5 were at increased risk for head/neck injury during a rotary-wing mishap, while ANVIS users with the ANVIS break-away feature were not at increased risk for head/neck injury.
Author | : Leroy D. Pigg |
Publisher | : |
Total Pages | : 30 |
Release | : 1961 |
Genre | : Vision |
ISBN | : |
Download The Effect of Transient Weightlessness on Visual Acuity Book in PDF, ePub and Kindle
Author | : Julius E. Uhlaner |
Publisher | : |
Total Pages | : 52 |
Release | : 1961 |
Genre | : Night vision |
ISBN | : |
Download The Army Night Seeing Tester, Development and Use Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 22 |
Release | : 1975 |
Genre | : Air pilots |
ISBN | : |
Download To See Or Not to See Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 10 |
Release | : 1998 |
Genre | : |
ISBN | : |
Download Measuring Observers' Visual Acuity Through Night Vision Goggles Book in PDF, ePub and Kindle
Use of night vision goggles (NVGs) for military applications has grown steadily over the past 30 years. Each successive NVG model represents some kind of improvement in terms of size, weight, ruggedness, gain, noise, spectral sensitivity, field-of-view or resolution. The primary focus of this paper is the determination of NVG resolution. Many methods have been devised to measure the resolving power of NVGs and each method has with it an associated variance or accuracy of measurement. This variance is most likely caused by several sources including observer visual capability (since most methods involve visual observations and judgement to assess NVG resolution). The main purpose of this paper is to present the different methods that have been used to assess NVG resolution and to determine to what extent observer visual capability limits the accuracy of NVG resolution measurement. This study uses a methodology that measures an observer's psychometric function when viewing through NVGs (percent correct detection as a function of spatial separation) to determine their visual acuity using probit analysis.