Three dimensional depth illusion display

Details Three dimensional depth illusion display Three dimensional depth illusion display

G - Physics

09

B

G09B 23/04 (2006.01)

Patent

CA 2302682

Apparatus and method for producing a depth illusion of continuous three dimensional objects using the Moire effect is presented. The apparatus includes at least two surfaces separated by a small distance, one of which surfaces is a transparent sheet imprinted with vertical or nearly vertical, line patterns with slowly varying period in a horizontal direction, and the other is imprinted with a color or black and white horizontally almost periodic pattern related to the other surface pattern in such a way that the combination of both patterns produces a Moire pattern that creates a depth illusion in the observer's mind.

Cette invention a trait à un appareil et à la méthode afférente créant une illusion de profondeur d'objets en continu tridimensionnels et ce, en faisant appel au phénomène de moirage. L'appareil comporte au moins deux surfaces séparées par une courte distance, l'une d'elles consistant en une feuille transparente portant un motif imprimé à lignes verticales ou quasiment verticales à période de variation lente dans le sens horizontal, l'autre feuille portant un motif quasi-périodique imprimé à lignes horizontales coloré ou en blanc et noir. Ce second motif est en relation avec le premier d'une façon telle que leur combinaison produit un moiré donnant à l'observateur l'illusion de la profondeur.

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