System requirements for a high-gain dome-display surface

John R. Quick

doi:10.1117/12.20945

1 October 1990 System requirements for a high-gain dome-display surface

John R. Quick

Proceedings Volume 1289, Cockpit Displays and Visual Simulation; (1990) https://doi.org/10.1117/12.20945
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

Visual simulation of the external environment has become an essential part of devices used in flight and air combat training. In the case of a highly maneuverable aircraft, such as a fighter, the pilot's visual field-of-view is extremely large. As a result, many of the modern air combat simulators use the inner surface of a spherical dome as the display screen for the projection of surrounding imagery, such as other aircraft and ground features. When the reflected scene appears brighter than that from a Lambertian surface, the screen is said to exhibit gain. The increase in brightness results from redirecting the incident light along a preferred path. As the apparent gain increases in the preferred direction, less light is reflected in other directions, resulting in a sharp drop in apparent brightness. When the reflecting surface is curved, as is the inner surface of a spherical dome, the preferred direction of reflection is continually changing. Placement of the projectors and the location of the observer, together with a high surface gain, comprise the complex projection system development.

Citation Download Citation

John R. Quick "System requirements for a high-gain dome-display surface", Proc. SPIE 1289, Cockpit Displays and Visual Simulation, (1 October 1990); https://doi.org/10.1117/12.20945

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