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Accession Number
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ADA559210
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Title
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Evaluation of Anti-Glare Applications for a Tactical Helmet-Mounted Display.
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Publication Date
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Mar 2012
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Media Count
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15p
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Personal Author
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J. L. Roll M. R. Geis N. J. Trew P. Havig
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Abstract
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Non see-through, monocular helmet mounted displays (HMDs) provide warfighters with unprecedented amounts of information at a glance. The US Air Force recognizes their usefulness, and has included such an HMD as part of a kit for ground-based, Battlefield Airmen. Despite their many advantages, non- see-through HMDs occlude a large portion of the visual field when worn as designed, directly in front of the eye. To address this limitation, operators have chosen to wear it just above the cheek, angled up toward the eye. However, wearing the HMD in this position exposes the display to glare, causing a potential viewing problem. In order to address this problem, we tested several film and HMD hood applications for their effect on glare. The first experiment objectively examined the amount of light reflected off the display with each application in a controlled environment. The second experiment used human participants to subjectively evaluate display readability/legibility with each film and HMD hood covering under normal office lighting and under a simulated sunlight condition.
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Keywords
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Antiglare coatings
Antireflection coatings
Antireflective films
Contrast ratios
Glare
Glare reduction
Helmet mounted displays
Hoods
Legibility
Light reflection
Liquid crystal display systems
Microlouver coatings
Organic light emitting diodes
Polarizing coatings
Readability
Reflection
Shielding
Sunlight
Treatments
Viewers
Viewing panels
Visual acuity
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Source Agency
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Non Paid ADAS
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NTIS Subject Category
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49E - Optoelectronic Devices & Systems
71E - Coatings, Colorants, & Finishes
46C - Optics & Lasers
95D - Human Factors Engineering
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Corporate Author
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Air Force Research Lab., Wright-Patterson AFB, OH. Human Effectiveness Directorate.
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Document Type
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Technical report
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Title Note
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Interim rept. 1 Oct 2010-30 Mar 2012.
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NTIS Issue Number
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1219
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Contract Number
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N/A
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