MAKING LENTICULAR OPTICAL SYSTEMS AND APPARATUS THEREFOR

摘要

A method and apparatus for manufacturing lenticular optical systems comprises a transparent or opaque substrate (60) which is printed with a composite of lines to form one or more desired designs. The substrate is coated with a moldable material (52, 50) that is molded via a die (36) on a die cylinder (34) with a set of grooves parallel to the design lines on the die, so that each design is visible from certain viewing angles and not from other viewing angles. The moldable material is preferably a quick setting liquid, such as ultraviolet-curable plastic which can be hardened almost immediately to allow fast production techniques. The moldable material adheres to the substrate and detaches from the die as it exits the space between the die cylinder and impression cylinder (32).