Universal Angle Visibility Realized by a Volumetric 3D Display Using a Rotating Mirror-Image Helix Screen

Herein, we propose a volumetric 3D display in which cross-sectional images are projected onto rotating helix screen. The method employed by this can enable image observation from universal directions. A major challenge associated with is the presence of invisible regions that occur depending on angle. This study aimed to fabricate mirror-image screen two helical surfaces coaxially arranged plane-symmetrical configuration. visible region was actually measured be larger than conventional We confirmed improved almost independent angle and equally wide both left right sides rotation axis.