| 摘要 |
PURPOSE:To obtain an artificial reflective hologram from a relief hologram without damaging the performance, by piling up a transmitting relief hlogram and reflective materials having specular luster and packing them closely with transparent resin films. CONSTITUTION:Sheet-shaped reflective materials 2 having specular luster are brought closely into contact with a relief hologram 1 generated or copied in the known method. This laminated material is held between a pair of transparent resin films 3a and 3b and is packed closely to obtain an artificial reflective hologram. Vacuum packing, stretch packing, and shrink packing are adopted as close packing, and vacuum packing is desirable specially. Polyethylene films, propyrene films, laminated films of them, or the like having a thickness of about 20-100mu are used as films 3a and 3b. A metallic vapor-deposition film consisting of reflective materials 2 may be formed directly on the resin film of the reverse side. |
