G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 27/22 (2006.01) G03B 35/24 (2006.01) H04N 13/00 (2006.01)
Patent
CA 2253891
The invention features an autostereoscopic imaging device comprising n view points comprising a lenticular network (RL1) comprising cylindrical lenses (10) having longitudinal axes parallel to a direction (zz') perpendicular to an optical axis (x'x) of the device. It comprises a cylindrical optical assembly whose longitudinal axis is perpendicular to zz' and to xx'. The lenticular network (RL1) comprises n cylindrical lenses (10). The lenticular network (RL1) and the cylindrical optical assembly (LC1) have a common focusing plane (P) corresponding to a focusing distance ( DELTA ). The absolute value of the ratio between the focal distance of the cylindrical optical assembly and that of the lenticular network is substantially equal to n. The invention also features a projection device, implementing the said imaging device and a projector projecting n elementary flat images and a screen equipped with at least one projection network.
L'invention concerne un dispositif de formation d'une image autostéréoscopique comprenant n points de vue comportant un réseau lenticulaire (RL1) comprenant des lenticules cylindriques (10) ayant des axes longitudinaux parallèles à une direction (zz') perpendiculaire à un axe optique (x'x) du dispositif. Il comporte un ensemble optique cylindrique dont l'axe longitudinal est perpendiculaire à zz' et à xx'. Le réseau lenticulaire (RL1) comporte n lenticules cylindriques (10). Le réseau lenticulaire (RL1) et l'ensemble optique cylindrique (LC1) ont un plan de mise au point commun (P) correspondant à une distance de mise au point (.DELTA.). La valeur absolue du rapport entre la distance focale de l'ensemble optique cylindrique et celle du réseau lenticulaire est sensiblement égal à n. L'invention concerne également un dispositif de projection, mettant en oeuvre ledit dispositif de formation d'image et un projecteur projetant n images élémentaires plates et un écran équipé d'au moins un réseau de projection.
Alioscopy
Allio Pierre
Robic
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