Lenticular Lens (How Lenticular Lens works)
A lenticular lens is an array of lenses, designed so that when viewed from slightly different angles, different parts of the image underneath are shown.The most common example is the lenses used in lenticular printing, where the technology is used to give an illusion of depth, or to make images that appear to change or move as the image is viewed from different angles.
3D Stereoscopy Lenticular Lens vision is achieved by merging the image data from the left and right eyes within the brain. This phenomenon is called parallax. It shows the apparent placement of an object relative to its background when viewed from slightly different positions.
The trick is to provide a different image to each eye, just like the good old View Master. This creates depth and gives the impression of three dimensions. The View Master works with a stereo pair, but lenticular printing works with many stereo pairs thus allowing the viewer to perceive the depth effect from different points.
The Lenticular pictures move and show depth when the products are tilted.
3D Lenticular printing is a technology in which a lenticular lens is used to produce images with an illusion of depth, or the ability to change or move as the image is viewed from different angles.
Examples of lenticular printing include prizes given in Customer Lenticular Boxes that showed flip and animation effects such as winking eyes, and modern airport advertising graphics that change their message depending on the viewing angle.
Lenticular printing allows you to print many different lenticular effects. Depending on the number of images and the way they are interlaced, the result will have a different appearance. Most people are familiar with the typical flip animation. By changing the viewing angle you get to see two different images. However, there are many other applications, and below we give you a short explanation about the different possibilities.
Lenticular sheet materials make special lenticular effects, such as Flip, Moving(Animation),Zoom,Morphing , 3D , 3D+flip , 3D+Zoom etc.
Flip effect images This is the simplest, but often the most effective form of lenticular printing. It consists of 2 or more images and can be produced for both horizontal (display walls) and vertical (postcards) applications. The viewing angle and the location of the person determine which image we get to see.
Moving/Animation effect images This is a variant of the flip. Moving or animation pictures have on average 10 or more images woven together. The background image is stable, but the moving parts are printed in different places. By varying the viewing angle, one gets the impression that the image is moving. a variant of the flip. Moving or animation pictures have on average 10 or more images woven together. The background image is stable, but the moving parts are printed in different places. By varying the viewing angle, one gets the impression that the image is moving.
Zooming effect A real attention grabber is the zoom effect. When viewing the lenticular print from different angles, you get the impression that objects zoom in or out. In fact, the image is always the same, but it is interlaced in different sizes.
Morphing images With this type of animation you create a transition from one image to another. The morphing takes place in different stages, so one gets the illusion that one object is gradually transforming into a different object. Good preparation of the images is crucial for a good effect. Morphing software is easy to find on the web.
3D "depth" Stereoscopy effect images Three-dimensional simulations are very popular these days. By creating depth in the image, it takes the visual experience to a higher level. Lenticular printing is the only solution allowing to see 3D images without the help of special 3D glasses. Images with 3D simulations are more complex. However, simple 3D effects can easily be created in Adobe Photoshop. To add more depth, you can use special software tools like Autodesk 3D Studio Max or others like Maya, Lightwave 3D, Cinema 4D, etc… Another interesting application is the creation of 3D images from live scenery or people. This can be achieved by means of a camera mounted on a sliding bar. The displacement and the number of shots will depend on the type of picture and the resolution of the used material.
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