perlen converting, a kennett square, pa based company, has launched an optical strip incorporated into its perlalux pvdc and pvc blister films that offers an alternative to safety devices attached into blister foil lidding. in the perlalux identity solution, the hologram strips are placed in between blister cavities without modifying packaging characteristics. they tampering resistant as they are situated in between the cavities. their placement makes it hard to manipulate them. furthermore, they are lacquer coated. fredy brunner is the director of sales for north america.