Autostereoscopy is a technology that allows viewers to see three-dimensional images without the need for special glasses. It works by presenting different images to each eye, creating the illusion of depth. This technique is commonly used in displays, such as those found in some televisions and smartphones, enhancing the viewing experience. This method relies on various techniques, including parallax barriers and lenticular lenses, to direct light in specific ways. Autostereoscopy is popular in applications like 3D movies and virtual reality, providing a more immersive experience while maintaining comfort for the viewer.