Method and apparatus for displaying three-dimensional images

Details Method and apparatus for displaying three-dimensional images Method and apparatus for displaying three-dimensional images

H - Electricity

04

N

H04N 13/04 (2006.01) G02B 27/22 (2006.01)

Patent

CA 2250968

According to the method of the invention a simultaneously modulated light beam carrying the information of a three-dimensional image is directed to pixels (image points) defining a first light emitting surface, a component of the light beam is emitted from the pixels within a predetermined angle of view (field of view) in the different view directions, with an intensity corresponding to the three-dimensional image, the modulated light beams are directed to the pixels from different entry angles, depending on the emitting angles within the angle of view, wherein the light beams modulated corresponding to the different directions are directed to the pixels of the first light emitting surface from one or more light emitting points of a second light emitting surface, said second light emitting surface being spaced apart with a predetermined distance from the first light emitting surface. The proposed apparatus for producing three-dimensional images comprise a second light emitting surface (50) comprising light emitting points (S1...Sm), the second light emitting surface being spaced apart from the first light emitting surface (40) containing the pixels (P1...Pn) in a predetermined distance, and for each direction (i1...in) of the pixels (P1...Pn) of the first light emitting surface (40) there is an associated light emitting point (S1...Sm) of the second light emitting surface (50), and for each light emitting point (S1...Sm) there are several associated pixels (P1...Pn).

Selon le procédé de l'invention, on dirige un faisceau lumineux simultanément polarisé, portant les informations d'une image tridimensionnelle, sur des pixels (points-image) définissant une première surface émettrice de lumière; une composante du faisceau lumineux est émise depuis les pixels à l'intérieur d'un angle de vision (champ de vision) prédéterminé dans les différentes directions de vision, avec une intensité correspondant à l'image tridimensionnelle; on dirige les faisceaux lumineux modulés sur les pixels depuis différents angles d'entrée, en fonction des angles d'émission situés dans ledit angle de vision, les faisceaux lumineux modulés correspondant aux différentes directions étant dirigés sur les pixels de la première surface émettrice de lumière depuis un ou plusieurs points émetteurs de lumière d'une seconde surface émettrice de lumière, séparée d'une certaine distance de la première surface émettrice de lumière. Le dispositif proposé pour produire des images tridimensionnelles comprend une seconde surface émettrice de lumière (50) qui contient des points émetteurs de lumière (S1... Sm) et qui est séparée de la première surface émettrice (40) contenant les pixels (P1... Pn) d'une distance prédéterminée. A chaque direction (i1... in) des pixels (P1... Pn) de la première surface émettrice (40) est associé un point émetteur de lumière (S1... Sm) de la seconde surface émettrice (50), et à chaque point émetteur de lumière (S1... Sm) sont associés plusieurs pixels (P1... Pn).

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