Linssileikkaus

Linssileikkaus, also known as lenticular printing, is a technique that produces images with a lenticular, or three-dimensional, effect. It is created by combining multiple images into a single printed piece, which is then overlaid with a special lens material. This lens material has a series of parallel, curved lenses that are precisely aligned with the images underneath. When viewed from different angles, the lenses magnify and direct light from specific parts of the underlying images to the viewer's eyes, creating the illusion of depth or animation.

The process involves several steps. First, the original images are digitally manipulated to create interlaced frames. These frames are then printed onto a substrate that has lenticular lenses applied to its surface. The lenses are typically made of plastic and are designed with a specific curvature and pitch to match the interlaced images. The alignment between the printed image and the lenticular lens is critical for achieving the desired effect.

Linssileikkaus can produce various visual effects, including 2D-3D, flip (where one image changes to another), animation (a sequence of images creating motion), and zoom (an image appearing to move closer or further away). This technology is used in a wide range of applications, such as novelty items, packaging, advertising, and point-of-sale displays. It offers a way to make printed materials more engaging and dynamic without requiring special viewing equipment like glasses. The complexity of the effect and the perceived depth depend on the number of interlaced images, the resolution of the print, and the quality of the lenticular lens.