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    • 9. 发明申请
    • MODULAR VIDEO DISPLAY SYSTEM
    • 模块化视频显示系统
    • WO1998001841A1
    • 1998-01-15
    • PCT/US1996011407
    • 1996-07-08
    • McDONNELL DOUGLAS CORPORATIONLECHNER, Robert, J.
    • McDONNELL DOUGLAS CORPORATION
    • G09B09/32
    • G09B9/302G06T3/403G09B9/32G09B9/326G09B9/36G09B9/56
    • A visual display system (10), such as a flight simulation system, includes a number of display screens (12) and a number of associated video projectors (28) which project predetermined video images on the display screens (12) in response to control signals provided by an operator. In one embodiment, the display screens are circumscribed by an imaginary sphere (34) having a predetermined radius and centered about the design eye (36) of the visual display system. The design eye is generally positioned in a predetermined fixed relation to the operator such that the distortion of the displayed video image is reduced. In another embodiment, the video projectors are mounted in a linear side-by-side relationship on a rear side of the display screens, thereby reducing the overall size of the visual display system. The visual display system also includes image redirection means, such as fold mirrors (42), to redirect the video images projected by the aligned video projectors (28) so as to provide the video images to the respective display screens (12) in a direction perpendicular to the planar surface of each display screen. In addition, adjacent display screens can be attached by a pair of rearwardly extending tabs (54) which are positioned so as to not mask the projected video images. At least one of the pair of tabs is opaque such that the projected video images will not pass between the adjacent display screens. Thus, at least the portion of the video image displayed along the edges of the adjacent display screens is clarified.
    • 诸如飞行模拟系统的视觉显示系统(10)包括多个显示屏幕(12)和多个相关联的视频投影仪(28),其响应于控制在显示屏幕(12)上投影预定的视频图像 由操作员提供的信号。 在一个实施例中,显示屏幕被具有预定半径并且以视觉显示系统的设计眼睛(36)为中心的假想球体(34)限定。 设计眼通常以与操作员预定的固定关系定位,使得显示的视频图像的失真减小。 在另一个实施例中,视频放映机在显示屏幕的后侧以线性并排的方式安装,从而减小了视觉显示系统的总体尺寸。 视觉显示系统还包括诸如折叠镜(42)的图像重定向装置,以重定向由对准的视频投影仪(28)投射的视频图像,以便将视频图像提供给各个显示屏幕(12)的方向 垂直于每个显示屏的平面。 此外,相邻的显示屏可以通过一对向后延伸的突出部(54)来附接,这些突出部被定位成不遮蔽投影的视频图像。 一对标签中的至少一个是不透明的,使得投影的视频图像将不会在相邻的显示屏幕之间通过。 因此,至少沿着相邻显示屏幕的边缘显示的视频图像的部分被清楚。