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 is achieved through various methods, such as lenticular lenses or parallax barriers, which direct light in specific ways. This technique is commonly used in displays, such as 3D televisions and smartphone screens, to enhance visual experiences. Autostereoscopic displays are popular in gaming and virtual reality, as they provide a more immersive experience without the inconvenience of wearing glasses.