Hologram scanner at Hanover trade fair
16 04 2007
Holograms are increasingly being used for the forgery-proof labelling of expensive branded articles. Australian company, Sick is presenting a scanner at the Hanover Trade Fair that detects holograms during attachment to the packaging, or for subsequent inspection of authenticity.
AÂ hologram scanner includes a rotatable hologram disk on which a plurality of hologram lenses are arranged circumferentially, and a light beam guide mechanism for successively shifting irradiation regions in a predetermined direction with respect to the direction of rotation of the hologram disk, to apply a light beam successively to the hologram lenses on the hologram disk, so that the scanning of a reading window with the light beam is effected in all directions with high density. The hologram scanner is employable as a bar code reading device in a POS or UPC system.
Source: http://www.ferret.com.au/articles/z1/view.asp?id=36112
