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Improving the Utility of a Binocular HMD in a Faceted Flight Simulator

机译：提高多面飞行模拟器中双目HmD的效用

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摘要

Faceted simulator displays are widely used because they are relatively compact and economical. One drawback, however, is that viewing distance changes depending on where users are looking. This variation creates a challenge for the integration of binocular head mounted displays (HMDs), because confusing imagery and visual fatigue can result when the user views symbology presented by the HMD at one distance and simulator imagery at different distances. Understanding the best approach to presenting symbology with a binocular HMD in a faceted simulator has become an important issue, with the deployment of the F-35 Joint Strike Fighter and its binocular HMD. Successful integration of a binocular HMD would not only allow current faceted simulators to be retrofit with the F35 simulator HMD, hut would also allow future simulators to have either a dome or faceted design, thus affording acquisition agencies greater flexibility. Binocular HMD are becoming more prevalent, so solving this integration issue will likely become important for multiple platforms. We performed an experiment to quantify the best method of presenting symbology on a binocular HMD when used with a faceted simulator display. Five viewing conditions were tested: (1) HMD converged to 36', (2) HMD converged to 42', (3) dynamic HMD converged, (4) monocular presentation on the HMD, and (5) on-screen presentation. Screen distances ranging from 36' to 54' were tested. Our results suggest that adaptive convergence is the preferred solution. Both static convergence conditions and the monocular condition resulted in lower comfort scores and poorer performance. The on-screen condition although rated comfortable, does not represent the real-world flight condition where symbology is displayed using an HMD.

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