Abstract: A non-spherical projection display structure and system that can be optimized for the ergonomics of preferably one viewer inside the display structure or system. The structure or system is preferably for use with widescreen projectors. The non-spherical projection display structure and system creates a visual projection display and method of operating the display that has a wide horizontal and vertical field of view and uses a rear projected display structure having a projection screen surface with a thickness. The display structure has at least one section with a monotonically increasing or decreasing radius of curvature.

Abstract: A non-spherical projection display structure and system that can be optimized for the ergonomics of preferably one viewer inside the display structure or system. The structure or system is preferably for use with widescreen projectors. The non-spherical projection display structure and system creates a visual projection display and method of operating the display that has a wide horizontal and vertical field of view and uses a rear projected display structure having a projection screen surface with a thickness. The display structure has at least one section with a monotonically increasing or decreasing radius of curvature.

Abstract: A touchscreen system for locating an opaque object in a target region, detects interruption of light beams. Each of the touchscreens have one or more optical emitters to create the beams, and one or more optical detectors to provide detection signals arranged to use emission wavelengths which are compatible with night vision apparatus, and having an NVIS radiance smaller than 1.7×10?11 NR.

Abstract: A system and method for validating GPU rendered display data by comparing, across substantially all of the pixel locations in a frame, the GPU rendered display data to display data rendered by another processor. In this way, by checking substantially all of the pixel locations in a frame, errors in the display image data can be detected without prior knowledge of the format, layout, etc. of the display data. The system and method are capable of operating without receiving input from a user or producing output to a user, and without receiving input from other applications or producing output to other applications.