Method and apparatus for displaying 3d images

A method for the displaying of 3D images, comprising the steps of

• a, generating light beams (Ld) associated to multiple different points (P) of a screen (20), the light beams (Ld) creating different views associated to different emitting directions (E) of the individual screen points (P), and
• b, projecting the light beams (Ld) onto a direction selectively transmitting and/or reflecting screen (20), the screen (20) providing divergence (δx) corresponding to the angle between two neighbouring emitting directions (E),
• characterised by
• c, generating substantially simultaneously light beams (Lc) substantially without emitting direction information with pixels (Cd) of a two-dimensional display (50), the pixels (Cd) having different co-ordinates, the light beams (Lc) being associated to the different points (P) on the screen (20) and corresponding to the different emitting directions (E) of the screen points (P), and
• d, imaging substantially simultaneously the light beams (Lc) generated by the display pixels (Cd) with different co-ordinates into different deflecting directions (D), the imaging being performed as a function of the co-ordinates of the pixels (Cd) generating the light beams (Lc).

An apparatus for displaying 3D images, the apparatus comprising

• a, a screen for direction selectively transmitting and/or reflecting light,
• b, a screen illuminating system, the system comprising
• c, modules for generating light beams, the light beams being associated to multiple different points of the screen, and being associated to different emitting directions of the points of the screen, and further
• d, the screen providing divergence to the transmitted or reflected light, according to the angle between neighbouring emitting directions, characterised in that
• f, the modules further comprise a two-dimensional image, and
• g, an optical system for simultaneously imaging the individual image points of the image onto the screen, where
• h, the image points of the two-dimensional image associated to the different points on the screen and corresponding to the different emitting directions associated to the different screen points generate substantially simultaneously light beams with different co-ordinates but substantially without emitting direction information, and
• i, the imaging optics associated to the display substantially simultaneously images the light beams generated by the image points with different co-ordinates into different emitting directions or imaging directions.