Abstract: The invention relates to an autostereoscopic multi-user display comprising a focussing element and a selectable display for the time-sequential representation of 2D and/or 3D images. When viewed in the direction of the observer, said display contains a sweet-spot unit and an image matrix, which function separately from one another. The sweet-spot unit focuses a light distribution with a large surface area onto the eyes of the observer by means of a lateral sweet-spot extension, which is greater than or equal to the distance between the eyes of the observer. The sweet-spot bundle traverses the imaging matrix completely in a uniform manner on its way to the observer(s) and is thus modulated by the image content of the image matrix. The size of the sweet spot reduces the need for tracking precision. The sweet-spot unit consists of an illumination and imaging matrix.

Abstract: The invention relates to a sweet spot unit which focuses light at predeterminable regions in space in sweet spots by at least one flat controllable optical matrix and an optical mask. Sweet spots designate the zones of autostereoscopic viewing that are free of cross-talking. The unit comprises a controllable optical matrix (BM) with a multitude of controllable and regularly arranged pixels, and an optical mask (LM*), which is tolerance-loaded due to manufacture or other influences, with projection elements (L1*, L2*, . . . ), whereby along a section along any line pixels of this line are assigned to the projection elements (L1*, L2*, . . . ), said pixels being projected to any predetermined sweet spots by projection elements, characterized by that those pixels assigned to the projection elements are activated by program means that are congruently projected into the predetermined sweet spots.

Abstract: The invention relates to an autostereoscopic multi-user display comprising a focussing element and a selectable display for the time-sequential representation of 2D and/or 3D images. When viewed in the direction of the observer, said display contains a sweet-spot unit and an image matrix, which function separately from one another. The sweet-spot unit focuses a light distribution with a large surface area onto the eyes of the observer by means of a lateral sweet-spot extension, which is greater than or equal to the distance between the eyes of the observer. The sweet-spot bundle traverses the imaging matrix completely in a uniform manner on its way to the observer(s) and is thus modulated by the image content of the image matrix. The size of the sweet spot reduces the need for tracking precision. The sweet-spot unit consists of an illumination and imaging matrix.