G - Physics – 09 – B
Patent
G - Physics
09
B
35/16
G09B 9/08 (2006.01) G02B 27/01 (2006.01) G02B 27/00 (2006.01)
Patent
CA 1129193
Improvements in or relating to Visual Display Apparatus ABSTRACT The invention provides head-coupled area-of-interest visual display apparatus particularly for ground-based craft- flight simulators. The apparatus provides a stereoscopic pair of images for both a pilot and co-pilot, projected onto the inside of a part-spherical shell, which carries a concave retro-reflective screen and surrounds the two pilots. The displayed scenes cover an area of interest centred upon each pilot's line of view. A separate image generator is used for each pilot and may be of the computer generated image, laser-scanned model or closed-circuit television type. For stereoscopic viewing a modified image is provided for each eye of each pilot and for each pilot the two images are separately projected from points on a respective pilot helmet above the eye positions. Line scan apparatus is mounted in the pilots' cockpit; line image transmission is by two pairs of fibre optic light guide ribbons; and frame scan apparatus is mounted on the two pilots' helmets. Sensing means detect head/helmet movements of each pilot to permit voluntary individual scanning of a wide angle of simulated view from the craft. P.2093/1
343512
Murray Paul M.
Spooner Archer M.
Fetherstonhaugh & Co.
Redifon Simulation Limited
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