Hologram duplicating device and method

摘要

A hologram duplicating apparatus ( 10 ) includes a first optical system ( 30 ) for carrying out exposure recording of holographic stereogram image on a recording medium for hologram to produce an original H₁, a second optical system ( 60 ) for carrying out exposure recording of image recorded on the original H₁ on a recording medium for hologram disposed at a predetermined distance from the original H₁ by using diffracted light obtained by illuminating the original H₁ to produce intermediate hologram H₂, and a third optical system ( 70 ) for carrying out exposure recording of image recorded on the intermediate hologram H₂ on a recording medium for hologram disposed at a predetermined distance from the intermediate hologram H₂ by using diffracted light obtained by illuminating the intermediate hologram H₂ to produce edge lit hologram H₃.