Patent ID: 8649077
Filing Date: 2014-02-11
Classification: G03H

Abstract:
1. A hologram replicating device, comprising: a hologram recording medium that includes a photosensitive material; a hologram master that is brought into close contact with a surface of the hologram recording medium directly or with a refractive index adjustor therebetween, an image of the hologram master to be replicated onto the hologram recording medium; a spatial light modulation element that modulates a laser beam in accordance with additional information to generate a modulated light, the additional information to be recorded on the hologram recording medium with the image of the hologram master, the additional information being separate from the image of the hologram master, and the additional information being information observable by a user once recorded on the hologram recording medium; and an image formation optical system that irradiates the hologram recording medium, via the hologram master, with the modulated light from the spatial light modulation element, wherein,