Technology

How does it work?

To give you a better idea of what lenticular printing is all about and how it works, we will give you a small guided tour behind the scenes of lenticular printing technology. You’ll also find interesting information on Lenticular Technology.com

lenticular technology

Lenticular print can best be described as a way to transform static print into a dynamic and interactive medium. The viewer is literally invited to participate in the experience. It is done by combining specially prepared – interlaced – graphics with a lenticular lens, and depending on the viewing angle, the viewer will see the different images appear.

How works a lenticular sheet   ©

So, to create a lenticular image, you need a lenticular lens and at least 2 different images. Depending on the sort of animation you are looking for, more images can be used. But let’s not go too deep in the technology for now.

bri300.gif Copyright DPLenticular formerly LPC Europe

The lenticular plastic sheet has one smooth side (this is the side you print on) while the other side is made of “lenticules”. These are the optical devices that will allow the effects to be seen. Each lenticule acts as a magnifying glass to enlarge and display the portion of the image below, depending of the viewing angle.

Depending on the sort of animation and the printing process you will use to produce the lenticular prints, different lenticular lens designs exist. The thickness and viewing angle of the lenticules are different. You can find the specifications in the “products” section.

Lenticular lens ©

Wide and narrow angle lenticular sheet  ©

We have 12 different lenticular designs in stock: 75 LPIECOLENS 75 LPI62 LPI, 100 LPI, ECOLENS 100 LPI 60 LPI, 3D-100 LPI, 150 LPI, 50LPI-M40 LPI3D-50 LPI and 3D 20 LPI UV-LF.

A narrow angle will give an optimal lenticular 3D effect, where 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 is the lenticular image created?

Lenticular technology, how interlacing works   ©

Like explained before, you need at least two images. These images will be “interlaced” using Photoshop or a specific lenticular software.
You find more information about this in our section on lenticular software. Interlacing means that the images are divided onto strips and are combined into one graphic (see illustration). Depending on the viewing angle, the lenticule isolates and magnifies only one of the two interlaced images. Hence the finished effect.

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

To get the right visibility, the interlaced image will need to be “mirrored” before printing directly onto the backside of the lenticular plastic.

Click here to know more about the prepress process.

lenticular print

More information on how to interlace in Photoshop and lenticular printing

 

  • Archives

  •  

    eye_72_lpi Nixdorf Copenhagen rywan1 Flip Mousepad_Forschungspreis