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Summary:The device has a beam splitter (3) and a smoked pane (5) to project an image from a luminous screen (2) in a plane perpendicular to observation direction (D) of the device to superimpose the respective images from a pointer (1) and image from the screen. The splitter and pane occupy a surface approximately equal to or lower than a surface of the image projected from the screen, in the plane perpendicular to the observation direction.
Bibliography:Application Number: FR20040051634