Partial-overlap biocular image misalignment tolerance

Melvyn E. Kalich; Lisa M. Lont; Corina van de Pol; Clarence E. Rash

doi:10.1117/12.542411

8 September 2004 Partial-overlap biocular image misalignment tolerance

Melvyn E. Kalich, Lisa M. Lont, Corina van de Pol, Clarence E. Rash

Proceedings Volume 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications; (2004) https://doi.org/10.1117/12.542411
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

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.

Citation Download Citation

Melvyn E. Kalich, Lisa M. Lont, Corina van de Pol, and Clarence E. Rash "Partial-overlap biocular image misalignment tolerance", Proc. SPIE 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications, (8 September 2004); https://doi.org/10.1117/12.542411

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