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Thursday 11th of March 2010

How does it work?

Lenticular print can be described as specially prepared – interlaced - graphics that are designed to perfectly work together with a lenticular lens to allow the viewer to see different images depending on the angle at which they view it.


How works a lenticular sheet   © www.lenstar.org

So, to create a lenticular image, we need a lenticular lens

And at least 2 different frames

bri300.gif Copyright DPLenticular formerly LPC Europe

The lenticular plastic sheet has one side that is smooth (this side is printed) while the other side is made of the “lenticules”, optical devices that will allow to visualize the effects.

Lenticular lens © www.lenstar.org


Each lenticule acts as a magnifying glass to enlarge and display the portion of the image below, depending of the viewing angle.

Wide and narrow angle lenticular sheet  © Copyright www.lenstar.org

There are different lens designs.  The thickness and viewing angle of the lenticule are different, you'll find the specifications in the "products" section..

We have 8 different lenticular designs in stock:75 LPI, 62 LPI, 100 LPI, 60 LPI, 3D-100 LPI, 150 LPI, 50LPI-M (new), and 40 LPI.

A narrow angle will give an optimal 3D effect, and a wide angle will work best for an animation effect.


The lenticules for animation effects may run vertically or horizontally.

However, you will see better results-meaning cleaner action and far less chances of ghosting when the lenticules are in the horizontal direction.



lenticular animation


For larger, more stationary pieces such as a poster or P.O.P. display, the vertical direction should be used since it requires the viewer to move rather than the piece.

lenticular POP flip image  © Produced by Klenke Druck


How would the lenticular image be created?


Lenticular technology, how interlacing works   © www.lenstar.org


Interlacing can be made using Photoshop or a specific lenticular sofwtare.

Here is how the interlaced file looks like:


London Bridge interlaced image    © DDDaniel Pierret DPL formerly LPC Europe


and we can see that each lenticule contains information from both images A and B isolated in function of the viewing angle of the  printed lenticular picture:

London Bridge interlaced image - detail - © DDDaniel Pierret DPL formerly LPC Europe

This image will need to be "mirrored" before printing direct to the backside of the lenticular plastic.



 
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