Integrating a Head-Up Display with Dome Visual Simulation Technology.
Abstract
When viewing a real planar image displayed in a dome through an aircraft Head-Up Display (HUD) focused for 'infinity', diplopia and parallax problems render th HUD useless as an aiming or training device. Since HUDs are essential to high-fidelity training in a simulator, this problem must be addressed and resolved. Two potential solutions were investigated: (a) three-dimensional (3-D) scene projection inside the dome, and (b) insertion of a newly designed and fabricated external decollimating lens over the exit lens of the HUD. Three-dimensional imagery resolved the diplopia problem, but unacceptable parallax still remained. The decollimating lens removed the double imagery and parallax problems, but had one major side effect: shrinkage of the HUD's total field of view approximately 12%, as determined by theodolite readings. It is concluded that 3-D head/eye-tracked dome displays, with mathematical correction for parallax, have a potential for use with unmodified HUDs. An external lens is the most cost-effective means making a standard aircraft HUD usable in a dome display, but further research should be pursued to determine the effects, if any, of the diminished image on training effectiveness. Keywords: dome simulators, projected real images, visual diplays, visual simulation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1986
- Accession Number
- ADA175222
Entities
People
- Phillip Peppler
- Sybil De Groot