Patent ID: 8564864

Claim:
An image recording medium comprising a photosensitive material layer having a refractive index modulation recorded in the photosensitive material layer to produce a hologram wherein: when the image recording medium is illuminated from a predetermined angle and a viewpoint is moved horizontally with respect to a line, a hologram image having continuous parallax in only the horizontal direction is reproduced, when the viewpoint is moved in a direction with respect to the line different from the horizontal direction, another image is reproduced that is (i) different from the hologram image and (ii) does not have continuous parallax with the hologram image, the hologram image having continuous parallax in only the horizontal direction includes the another image recorded therein, and the hologram image having continuous parallax in only the horizontal direction and the another image recorded in the hologram image are reproduced using different colors via Bragg diffraction.