What is lenticular lenses?

Lenticular lenses are a special type of lens that have a surface comprised of multiple small, convex lenses. These lenses are often used in 3D imaging, holography, and other applications where multiple images have to be overlaid in a single space. Lenticular lenses work by separating and directing different images to each eye, creating the illusion of depth and dimensionality. Some popular uses of lenticular lenses include lenticular 3D posters, postcards, and trading cards. They are also used in other types of media, such as gaming displays, virtual reality headsets, and medical imaging. Lenticular lenses are typically made from a variety of materials, including glass, plastic, and acrylic.