What is Lenticular Printing?

The sequential assembly of images printed on a lens.
The lenticular lens is composed of multiple parallel lens strips with the same optical caracteristics. Each strip magnify and project a micro image strip printed on the back of the lenticular lens, in way that all strips can be sequentially seen for each vision angle of the lens. When using vertical lens, it is possible to project stereoscopic (relief/3D) images for each eye. When using horizontal lens, it is also possible to project changing images, the image seen by the eyes depend of the vision angle.The lenticular sheet is an optically transparent substrate, with a flat backing that allows direct printing (offset), or pasting. Images must be made to fit precisely with the lens strips size and must be perfectly align with the lens strips.
I have attached a 3D effect for your viewing pleasure. Lenticular print is of course more expensive than a similar paper piece, but the impact much more important, and the retention on the customer attention is amazing.