Hologram and holographic viewing device incorporating it

摘要

The invention relates to a hologram that enables two or more different images to be simultaneously reconstructed even in a state where the hologram is fixed in terms of relative position with respect to an eye, and a holographic viewing device that incorporates it. The hologram 14 is fabricated by applying Fourier transform to a plurality of input image to obtain a plurality of corresponding Fourier transform images 13 - 1, 13 - 2 and arraying the Fourier transform images 13 - 1, 13 - 2 on the same plane according to a given two-dimensional array principle into a computer-generated hologram. When a plurality of point light sources 23 ₁ to 23 ₉ located behind the hologram 14 are viewed through the hologram 14 , a plurality of images are simultaneously and parallel reconstructed ( 28 ) in correspondence to the array positions of the plurality of Fourier transform images.