Abstract: A system of reproducing multiplexed holographic information from one master medium (100, 300, 400, 500, 600, 720) to another replicate medium (200, 310, 410, 510, 610, 730) simultaneously reads out the information from all multiplexed master holograms within the master medium. The replica has different phase and amplitude distributions from the master medium containing a plurality of multiplexed holograms (420, 520) though both the replica and the master contain the identical holographic information of the original objects.

Abstract: An apparatus and a method for recognizing the gesture of the image of a player by identifying a gesture from a set of specific pre-defined gestures. In one embodiment, the method includes the steps of retrieving a background image that does not include the player's image, and a current image that includes the player's image and at least a portion of the background image. Then the method removes at least a portion of the background image from the current image to generate the player's image, which is mapped directly to a number of templates to generate a number of template outputs. Finally, the method analyzes the template outputs to identify the specific pre-defined gesture that corresponds to the gesture in the image.

Abstract: In one embodiment, a fingerprint sensing system includes a sheet prism having a sensing surface and a number of prismlets positioned opposite to the sensing surface. Each prismlet has an entrance surface and an exit surface, and is adjacent to another prismlet. The width of the sheet is more than ten times the maximum thickness of any one of the prismlets. When a finger is positioned on the sensing surface, a portion of the radiation entering a number of the entrance surfaces and incident at the sensing surface is reflected through total internal reflection. The reflected radiation emits from a number of the exit surfaces to create an image of the fingerprint. In another embodiment, the system further includes a second sheet prism stacked together with the previously described sheet prism. The second sheet prism has a flat surface and a number of prismlets positioned opposite to the flat surface, which faces the prismlets of the previously described sheet prism.

Abstract: An edge light for projecting light into a lighting panel through an end surface of the lighting panel. The edge light includes a thin transparent optical guide member having an elongate portion and at least one end portion extending from the elongate portion. The elongate portion has a planar surface and a shaped surface generally parallel to the planar surface and configured for reflecting light within the guide member through one of the planar surface and the shaped surface. Either the planar surface or the shaped surface is positioned adjacent the end surface of the lighting panel when the edge light is used to illuminate the panel. The edge light also includes a light source positioned at the end portion for projecting light into the elongate portion of the optical guide member.

Abstract: A lighting panel providing uniform illumination is described. The panel includes a transparent light guide which has a faceted grooved major surface and a parallel planar surface. The lighting panel introduces light into one end of the light guide. The facets facing the light source are inclined so that they reflect the incident light primarily along the light guide to be reflected from the opposite end. The facet facing away from the light source is inclined to reflect light out through the planar major surface.