|
21 Feb 2008 08:29:33 | Lenstar.org
Lenticular prints are the result of specially prepared graphics
combined with a lenticular lens that allows the viewer to see
different images depending on their viewing angle.
The magic behind lenticular printing is the lens--an extruded
plastic sheet that is embossed with columns of tiny corrugations
called lenticules, hence the name "lenticular" in lenticular
extruded lens. The lenticules are all the same size and are
spaced equally across the sheet. The other side of the sheet
remains smooth in order to be printed upon. Although these
lenticules are very small and can be difficult to see, you can
feel them by dragging your finger or fingernail across the lens.
The lenticular print starts by "interlacing" two or more images
together. Interlacing is a process that involves slicing images
into extremely narrow strips and splicing them together. The
strips are spaced so that a small part of each image fits within
the space of one lenticule. Each individual lenticule magnifies
a small portion of the image underneath it. As the viewing angle
changes, the portion of the image that is magnified changes.
Many lenticules work together in harmony, the end result is a
complete image that changes as the viewing angle changes.
Traditionally, lenticular graphics were printed on paper and
then laminated to the lens. This made large production runs
expensive, and if the image was not perfectly laminated to the
lens, errors could be introduced that would ruin the intended
effect. Today thanks to newly created resin formulations,
precise extrusion of the lenticular lens, and more precise
printing processes, printers are able to print directly on the
back side of the lens creating spectacular image clarity while
simultaneously making large print runs of lenticular much more
affordable.
About Author :
Lenstar.org is a resource for advertisers, designers, and their
clients to research the lenticular process. Be sure to visit the
site for the latest information, design tips, case studies, or
just to learn more about lenticular.
|