👉 Holography is a type of optical illusion in which light appears to pass through a transparent medium, such as air or glass, instead of passing straight through. This phenomenon occurs due to the way light interacts with its medium and can be observed using a lens or other device that allows light to pass through a thin layer between two media, rather than being absorbed or reflected by them. Holography is often used in the context of holographic displays, which are projected images onto surfaces such