Lenticular Printing - FAQ’s


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Lenticular Printing FAQ

What is Lenticular Printing?

Lenticular printing, also called “flickers”, “winkies”, “wiggle pictures”, and “tilt cards”, is a technology that uses lenticular lenses to create images with an illusion of depth, motion, or multiple images. This effect is achieved by printing different images on the back of a plastic sheet with parallel lenticules (lens-like ridges) on the front. When viewed from different angles, the lenses reveal different images or create a 3D effect, making it ideal for eye-catching graphics in marketing materials, packaging, and displays.

Lenticular printing has its roots in the early 20th century, with the first lenticular images appearing in the 1940s. The technology was initially used for novelty items and small promotional materials, but advancements in printing techniques and materials in the latter half of the century expanded its applications. The development of more sophisticated lenticular lenses and digital printing in the 1990s significantly improved the quality and versatility of lenticular prints, making them popular in advertising, packaging, and art. Today, lenticular printing continues to evolve, offering increasingly dynamic and engaging visual effects.

Why Choose Lenticular Printing Over Traditional Printing?

Lenticular printing offers a unique and engaging way to capture attention and stand out from the crowd. Unlike traditional printing, which delivers static images, lenticular printing can create eye-catching effects such as 3D depth, motion, and image flips. These dynamic visuals can significantly enhance the impact of marketing materials, packaging, and displays, making them more memorable and effective. By providing a more interactive and immersive experience, lenticular printing helps brands create a stronger connection with their audience and leave a lasting impression.

The table below shows some applications of lenticular printing.

Products
Book Cover
CD Jewel Case Insert
DVD Case Insert
Vinyl Jacket Cover
Postcards
Posters

What is the cost of a lenticular printing project?

The cost of a lenticular printing project varies based on the size and quantity of the prints, as well as any additional requirements such as backside printing, adhesive backing, or die-cutting. For an accurate estimate tailored to your specific needs, please use our online instant lenticular printing cost calculator.

How many ways to make lenticular prints?

There are three main methods to make lenticular prints: offset printing, UV printing, and inkjet printing.

What is the maximum size for lenticular printing?

The maximum size for lenticular printing depends on whether you need 3D or animation effects. For 3D effects, the largest single piece can be 70.9 x 114 inches (1.8 x 2.9 meters), while for animation effects, the maximum is 66.9 x 106.3 inches (1.7 x 2.7 meters). However, it’s possible to tile multiple pieces horizontally to create a larger mural. For example, we completed a project for San Jose International Airport using four pieces of 36 x 48 inches each to form a mural sized 144 x 48 inches, tailored to fit the existing lightboxes at the site.

What is the minimum order quantity (MOQ)?

There is no minimum per se. However, as in the printing industry, larger orders generally result in a lower unit price. For offset printing projects, the optimal quantity is typically 300 or more. For UV printing, it's best if the total area exceeds 3 square feet. Inkjet printing can accommodate smaller orders, including single copies.

Can I have a physical proofing sample before mass production?

Yes, you can request a physical proofing sample of your artwork, but it does come with a cost. For offset printed projects, the cost is approximately $280. For large-size UV printed projects, you can obtain a proofing sample priced as a single unit using our cost calculator, or $50 for a smaller proportional piece. However, please note that physical proofing samples can delay the project by about two weeks. Instead, we recommend using an animated GIF as a digital proof. If you want to assess the quality of our work, we can also provide samples from previous projects.

3D Digital Proof
digital proof for 3d lenticular
Animation Digital Proofdigital proof for animation lenticular

What is the lead-time?

For offset printed projects, the lead-time is about 2 to 3 weeks. For UV printed projects, the lead-time is about 1 week. For inkjet printed projects, the lead-time is 2 days.

What effects are possible with lenticular printing?

The table below shows some visual effects of lenticular printing.

Effects
3D
Animation
Flip
Morph
Zoom

How many frames should I use for a lenticualr print?

The number of frames needed for a lenticular print depends on the desired visual effect. For flip effects, using 2 frames yields the best results and more than 3 frames can be challenging. Even with 2 frames, make sure the two frames have similar contrast to avoid ghosting. For morph effects, 10 to 20 frames are suitable, as the focus is on the smooth transition rather than the clarity of individual frames. For 3D effects, 10 to 20 frames are also acceptable to create a convincing depth effect.

Is it possible to combine 3D effect with other animation effects?

Yes, it is possible to combine 3D effects with other animation effects in lenticular printing. This versatile technology allows for the integration of multiple visual effects, such as 3D depth, motion, flips, and zooms, within a single print. By carefully designing the images and aligning them with the lenticular lenses, you can create a dynamic and engaging experience that captures the viewer's attention and enhances the overall impact of the printed piece. This combination of effects makes lenticular printing an ideal choice for producing captivating and memorable visuals.

How to prepare lenticular artworks?

Preparing lenticular artwork involves several key steps to achieve the desired visual effects. Start by designing the individual frames or layers for the animation or 3D effect, using high-resolution images for optimal clarity. Proper preparation and attention to detail are crucial for stunning lenticular prints. For more information, please refer to our Artwork Preparation page.

What is LPI on a lenticular sheet?

LPI stands for "Lines per Inch" or "Lenses per Inch". Please refer to the following table:

LPI 10 15 20 30 40 60 75 100
View Angle 48 47 47 49 49 54 49 42
View Distance 10’ - 50’ 5’ - 20’ 5’ - 20’ 3’ - 15’ 1’ - 15’ 1’ - 10’ 6” - 3’ 6” - 10”

How to choose a lenticular sheet for different applications?

Choosing the right lenticular sheet depends on the specific application and desired visual effects. Consider the lens pitch, which determines the density of the lenses and affects the image resolution and viewing distance. For detailed, close-up visuals, a fine-pitch sheet is ideal, while larger pitches are better for larger displays viewed from a distance. The thickness of the sheet also matters; thinner sheets are flexible and suitable for small prints or packaging, while thicker sheets offer durability for larger signs or displays.

Glossary

3D Layering
A process whereby multiple images are interlaced so that an illusion of 3D is visible.

Action Proof
An intermediate proof created on an imaging device for fine-tuning image effect and interlacing.

Animation
The use of sequential images that gives a motion illusion.

Autostereoscopy
Any method of displaying stereoscopic images without the use of special glasses on the part of the viewer.

Banding
A static defect that runs in the same direction as the lens. The main cause is a slight resolution mismatch.

Binocular Disparity
The difference in image location of an object seen by the left and right eyes which allows humans to see a 3D effect.

Checkerboard Banding
A defect pattern that appears both horizontally and vertically on a lenticular print.

Color Leakage
Unwanted colors, mainly yellow and black, occurring when the image is flipped or viewed at different angles. Leakage could be due to poor color registration or by an inexperienced printer.

CMYK
Cyan, magenta, yellow, and key (black).

Direct printing
A process that prints an image directly onto the flat side of a lenticular sheet.

DPI
Dots per Inch on a printer.

Filler Space
A stripe of image used to separate multiple frames of images from each other. This technique is used to minimize a ghosting effect.

Flip
A lenticular effect that displays a different image when the viewing angle is changed.

Gauge
The thickness of a lenticular sheet.

Ghosting
An undesirable result of lenticular printing which happens when more than one image is visible at the same time when seen from a single viewing angle. Possible causes are: poor registration, mismatched pitch, or too many frames.

Hologram
A form of photograph that records an image in three dimensions.

Interlacing
A process that strips and aligns frames of images based on the pitch of a given lenticular sheet.

Keyplane
The plane or layer in a lenticular print where its objects are the sharpest..

Lamination
The process whereby an image is applied to the flat side of a lenticular sheet by means of either glue or double-sided adhesive.

Lenticular
Refers to a series of convex lenses on a lenticular sheet.

Lenticular effects
Visual effects made possible by printing images on a lenticular sheet. These effects fall into three major categories:
  1. Animatic:
    • Flip - Images flip from one to another when the viewing angle changes.
    • Zoom - The focal point of the image advances toward the viewer when the viewing angle changes.
    • Animation - Image appears to be in motion when the viewing angle changes.
    • Morph - Image changes gradually from one to another when the viewing angle changes.
  2. Non-Animatic
    • 3D (Layered) - 3 D with the illusion of depth; objects seen in separate layers.
    • 3D (real) - 3 D with the illusion of depth; objects appears more realistic with rounded contours.
  3. Combined Effects
    • 3D + Flip - 3 D with parts of picture showing side to side flipping.

Lenticule:
A small convex lens on a lenticular sheet.

LPI
Lenticules per Inch or Lines per Inch.

Morph
A lenticular effect that shows an image gradually transforming to a different image.

Motion
See: Animation.

Narrow-angle Lens
The viewing angle of a lenticular sheet that is between 15-30 degrees. This type of lens is suitable for 3D effects.

Parallax
Parallax is an apparent displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines. Source: Wikipedia_Parallax.

PET
An acronym for Poly Ethylene Terephthalate, the most popular material for current lenticular sheets due to its clarify and durability.

Pitch
The exact number of lenticules per inch (LPI.) on a lenticular sheet.

Pitchtest
The exact number of lenticules per inch (LPI.) on a lenticular sheet.

Pixel
Also known as picture-element. It is the smallest unit of picture that can be manipulated.

PPI
Pixels Per Inch.

Printer's Proof
The proof made by the printing company for checking the iamge quality.

PVC
An acronym for Poly Vinyl Chloride. In the past most lenticular sheets were made of PVC.

Radius
A measure of lens curvature.

Refractive Index
A measurement of the speed at which light reflects off the lenticule.

Registration
The alignment of an image strip on the lenticule.

RGB
An acronym for Red, Green and Blue.

Screen Angle
In offset printing, the screen angle is the angle at which the halftones of a separated color are outputted to a lithographic film, hence, printed on final product media. Source: Wikipedia_Screen_Angle.

Slicing
Same as Interlacing.

Target Resolution
The resolution of a printer that is used to make lenticular prints, for example, 2400, 1200, or 600 dpi. Frame = (DPI/LPI) is the formula to determine the number of views or frames which will be used to interlace the artwork.

Viewing Angle
Viewing angle is a v-shaped region within which lenticular images can be seen clearly. In general, the viewing angle is a guideline to determine the type of lenticular effect. A narrow viewing angle is good for 3D effect. It can also be used for animatic effect, for example Flip or Morph.

Viewing Distance
The distance between you and the lenticular image is called viewing distance. This is an important factor to consider when choosing a correct lenticular sheet for your application. The number of LPI and the optimal viewing distance is inverse, meaning, the higher the LPI, the shorter the optimal viewing distance.

Please refer to What is LPI on a lenticular sheet? in FAQ.

View Frames
A series of images of the same object which are taken from different positions.

Wide Angle Lens
A wide angle lens is defined as having a viewing angle of 40 to 55 degrees.

Zoom
The focal point of the image advances toward the viewer when the viewing angle changes.

Disclaimer: Above definitions shall be used for reference only.