Computer-generated hologram

Abstract

For the purpose of preparing a computer-generated hologram, which has very high resolution and many numbers of parallaxes, the present invention provides a computer-generated holographic stereogram, wherein a virtual point light source group (11) is set up spatially on a side opposite to the observation side of the hologram (12), luminance angular distribution AWLci (θxz, θyz) of divergent light diverged from each of the virtual point light sources of said virtual point light source group toward observation side is divided by angular division, and within the divided angle, among the multiple images positioned on the plane of said virtual point light source group (11), a divergent light to be equal to the divergent light diverged from a point of amplitude equal to the density of pixel of the image corresponding to each of divided angle or equal to a value in a certain fixed relation with the density of the images at the position of the virtual point light source is recorded as the object light (1) at one of the positions on the observation side of the virtual point light source group.

Dependencies are inferred from the claim text.