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Proceedings Paper

Full-color wide field-of-view holographic helmet-mounted display for pilot/vehicle interface development and human factors studies
Author(s): James R. Burley; Joseph A. LaRussa
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Paper Abstract

A Helmet-Mounted Display (HMD) which utilizes highly efficient trichromatic holographic elements has been designed to support pilot vechicle interface development and human factors studies at the NASA-Langley Research Center. While the optics are fully color corrected, the miniature CRT's are monochromatic. This design provides an upgrade path to full-color when miniature display technology matures to color. The optical design conforms to the helmet shape and provides a 50 degree field-of-view (FOV) to each eye. Built-in adjustments allow each ocular to be independently moved so that the overall horizontal FOV may be varied from 50 degrees to 100 degrees with a corresponding change in the stereo overlap region. The helmet design and interpupillary adjustment allow for the 5th through 95th percentile male and female wearer. Total head-borne weight is approximately 4.2 pounds. The high-resolution monochromatic CRTs are driven by a set of multisync electronics with a maximum video bandwidth of 88 Mhz and supports bith raster and stroke modes. The electronics are designed to be compatiable with the Silicon Graphics IRIS 4D graphics workstations and the ADAGE 340 stroke graphics computer. A Polhemus magnetic tracking device is used to determine the helmet line-of-sight. The helmet will be used to develop innovative new display concepts for the F- 1 8 High-Alpha Research Vehicle (HARV) which make use of the unique display properties of the HMD. Pictorial displays, which convey the appropriate information intuitively, are envisioned. Human factors studies are also planned to evaluate the utility of stereopsis and determine the FOV requirements for different tasks. Concepts proven in the simulator will be carried to flight test in 1993 with a lighter weight, "hardened" version of this HMD design.

Paper Details

Date Published: 1 October 1990
PDF: 7 pages
Proc. SPIE 1290, Helmet-Mounted Displays II, (1 October 1990); doi: 10.1117/12.20950
Show Author Affiliations
James R. Burley, NASA/Langley Research Ctr. (United States)
Joseph A. LaRussa, Technology Innovation Group, Inc. (United States)


Published in SPIE Proceedings Vol. 1290:
Helmet-Mounted Displays II
Ronald J. Lewandowski, Editor(s)

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