8 September 2004 Partial-overlap biocular image misalignment tolerance
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Partial-overlap biocular helmet-mounted display (HMD) design flexibility and cost are directly related to image misalignment standards. Currently suggested standards are based on highly variable data from a number of studies, most using subjective discomfort or diplopia measures. This study tested the suggested standard for divergent horizontal image misalignment in a partial-overlap biocular optical system by exercising vigilance performance during image misalignment. Also, pre- and post-image misalignment divergence, convergence and heterophoria measurements were taken. The results revealed that clinical visual diagnoses, associated with accommodation and vergence, were clearly related to vigilance task performance, showing a greater number of vigilance errors for subjects viewing misaligned displays. In-device post-image misalignment divergence recovery and convergence break-recovery were significantly decreased. This was not found for the no-offset controls.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Melvyn E. Kalich, Melvyn E. Kalich, Lisa M. Lont, Lisa M. Lont, Corina van de Pol, Corina van de Pol, Clarence E. Rash, Clarence E. Rash, "Partial-overlap biocular image misalignment tolerance", Proc. SPIE 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications, (8 September 2004); doi: 10.1117/12.542411; https://doi.org/10.1117/12.542411


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