Visual display apparatus

Details Visual display apparatus Visual display apparatus

1979-12-21

1982-08-31

Groody, James J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340 27R, 340709, 358104, 358250, 434 44, G09G 300

Patent

active

043475086

ABSTRACT:
The invention provides head-coupled area-of-interest visual display apparatus particularly for ground-based craft-flight simulators. The apparatus provides binocular, three-dimensional vision of a display, projected onto a part-spherical retro-reflective screen, for one pilot, covering an area of interest centered upon the pilot's line of view. The image generator used may be of the computer generated image, laser-scanned model or closed-circuit television type. For the three-dimensional viewing, a modified image is provided for each eye and the two images are separately projected from points on a pilot's helmet horizontally in line but vertically displaced above the pilot's eye positions. Line scan apparatus is mounted in the pilot cockpit; line image transmission is by a pair of fibre optic light guide ribbons; and frame scan apparatus is mounted on the pilot's helmet. A position sensor detects head/helmet movements to permit voluntary scanning of a wide angle of simulated pilot view from the craft.

REFERENCES:
patent: 3614314 (1971-10-01), Rossire
patent: 3936148 (1976-02-01), Ellis
patent: 4048653 (1977-09-01), Spooner
patent: 4153913 (1979-05-01), Swift
Naecon 76 Record, Lewis et al., pp. 894-902.
Conference: Agard Lecture Series No. 76 on Electro-Optical Systems, Shepherd, pp. 4.1-4.13.

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