Multidirectional curved integral imaging with large depth by additional use of a large-aperture lens.

We propose a curved integral imaging system with large depth achieved by the additional use of a large-aperture lens in a conventional large-depth integral imaging system. The additional large-aperture lens provides a multidirectional curvature effect and improves the viewing angle. The proposed system has a simple structure due to the use of well-fabricated, unmodified flat devices. To calculate the proper elemental images for the proposed system, we explain a modified computer-generated pickup technique based on an ABCD matrix and analyze an effective viewing zone in the proposed system. From experiments, we show that the proposed system has an improved viewing angle of more than 7 degrees compared with conventional integral imaging.

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