IPNVG fixed-focus diopter study

Share-Dawn P. Angel

doi:10.1117/12.485951

8 September 2003 IPNVG fixed-focus diopter study

Share-Dawn P. Angel

Proceedings Volume 5079, Helmet- and Head-Mounted Displays VIII: Technologies and Applications; (2003) https://doi.org/10.1117/12.485951
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Integrated Panoramic Night Vision Goggles (IPNVGs) are the prototype night vision goggles (NVGs) and may be the next generation of NVGs. The AN/AVS-9 (F-4949) NVGs, worn by Air Force aircrews, have continuously adjustable eyepieces (from +2.0 diopters (D) to -6.0 D). Unlike the F-4949s, IPNVGs have a fixed-focus eyepiece at -1.0 D. However, previous research has shown that some operators are very insistent that their visual acuity is impaired if they do not have eyepiece settings on the order -2.0 D or more, where they are currently setting their NVGs. The proposed solution is to provide “snap-on” lenses to the IPNVGs in order to obtain a selection of settings. The purpose of this study is to determine if NVGs with this discrete number (two) of “snap-on” lenses are acceptable or if additional lenses are required.

Citation Download Citation

Share-Dawn P. Angel "IPNVG fixed-focus diopter study", Proc. SPIE 5079, Helmet- and Head-Mounted Displays VIII: Technologies and Applications, (8 September 2003); https://doi.org/10.1117/12.485951

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