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

043475078

ABSTRACT:
The invention provides head-coupled area-of-interest visual display apparatus particularly for ground-based craft-flight simulators. The apparatus provides binocular, pseudo-collimated vision of a display, projected onto a part-spherical retro-reflective screen, for two pilots, covering an area of interest centered upon each pilot's line of view. A separate image generator is used for each pilot and may both be of the computer generated image, laser-scanned model or closed-circuit television type. For the pseudo-collimated viewing, the same image is projected for left and right eyes for each pilot from points on a respective pilot helmet, horizontally in line but vertically displaced above the pilot's eye position. Line scan apparatus is mounted in the pilots' cockpit; line image transmission is by fibre optic light guide ribbons; and frame scan apparatus is mounted on the two pilots' helmets. Sensors detect head/helmet movements of each pilot to permit voluntary individual scanning of a wide angle of simulated 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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