Fig. 3 | Nature Communications

Fig. 3

From: Ultrathin wide-angle large-area digital 3D holographic display using a non-periodic photon sieve

Fig. 3

Holographic images of 3D helixes. To demonstrate the motion parallax of holographic images, a helix consisting of 75 foci was generated and placed within a depth of focus of the proposed imaging system. a Geometry of the holographic helix. b 2D intensity images captured at different observation angles using the 4-f telescopic imaging system with a numerical aperture of 0.16 and corresponding simulation results. c Holographic image for projection in a large volume. The diameter of the helix varies from 0.25 cm to 0.5 cm with a length of 5 cm. d 2D intensity maps of the helical trajectory captured at each depth without lenses mounted on the camera

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