Paper
6 March 2014 A variable-collimation display system
Robert Batchko, Sam Robinson, Jack Schmidt, Benito Graniela
Author Affiliations +
Proceedings Volume 9011, Stereoscopic Displays and Applications XXV; 901109 (2014) https://doi.org/10.1117/12.2044075
Event: IS&T/SPIE Electronic Imaging, 2014, San Francisco, California, United States
Abstract
Two important human depth cues are accommodation and vergence. Normally, the eyes accommodate and converge or diverge in tandem; changes in viewing distance cause the eyes to simultaneously adjust both focus and orientation. However, ambiguity between accommodation and vergence cues is a well-known limitation in many stereoscopic display technologies. This limitation also arises in state-of-the-art full-flight simulator displays. In current full-flight simulators, the out-the-window (OTW) display (i.e., the front cockpit window display) employs a fixed collimated display technology which allows the pilot and copilot to perceive the OTW training scene without angular errors or distortions; however, accommodation and vergence cues are limited to fixed ranges (e.g., ~ 20 m). While this approach works well for long-range, the ambiguity of depth cues at shorter range hinders the pilot’s ability to gauge distances in critical maneuvers such as vertical take-off and landing (VTOL). This is the first in a series of papers on a novel, variable-collimation display (VCD) technology that is being developed under NAVY SBIR Topic N121-041 funding. The proposed VCD will integrate with rotary-wing and vertical take-off and landing simulators and provide accurate accommodation and vergence cues for distances ranging from approximately 3 m outside the chin window to ~ 20 m. A display that offers dynamic accommodation and vergence could improve pilot safety and training, and impact other applications presently limited by lack of these depth cues.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert Batchko, Sam Robinson, Jack Schmidt, and Benito Graniela "A variable-collimation display system", Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 901109 (6 March 2014); https://doi.org/10.1117/12.2044075
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Projection systems

Modulation transfer functions

Visualization

Fourier transforms

Collimation

Mirrors

Stereoscopic displays

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