| 摘要 |
Process for producing glass/crystal-glass/hollow-glass holograms. Said process is a two-stage process. In the first stage, said hologram, preferably but not exclusively a dichromate hologram, is prepared, said invention being characterized in that the very sensitive dichromate emulsion is provided with one or several removable temporary protective layer(s) (A1) and that, at the end of the second stage, i.e. the special glass design part (B2), both manufactured parts constitute a whole. Unlike in all previous holograms, all glass parts according to the present invention, in particular the end face, can be considered support surfaces (C) for the hologram. Said process can also include protective vaporization of the hologram base outside the glass part. All glass parts seen as a whole constitue a unit and the different techniques (glass part, hologram, protective layer) cannot be distinguished. The holographic picture appears at the centre of the glass part, as if said glass part was the basis on which the holographic picture was prepared. Hologram and glass/glass-crystal/hollow-glass cooperate to make the produced object unique and considerably more valuable than prior art. It is also superior from a safety point of view. |
