Virtual Screen

Abstract

Methods and systems, including computer program products, for creating a virtual screen (208) for displaying a visible image in the air. A virtual screen generator (206) is provided. The virtual screen generator (206) has one or more light sources (302), a scanning means (304) for scanning the light from the light sources (302) across a pre-defined space in air, and a controlling means for controlling the operation of the light sources (302) and the scanning means (304). The virtual screen generator (206) receives image data to be displayed on the virtual screen (208) and uses the controlling means to direct the light from the one or more light sources (302), such that a collection of light-emitting points in the visible range of the electromagnetic spectrum are created within the pre-defined space in the air, which points jointly form an image corresponding to the received image data.

Dependencies are inferred from the claim text.