Holography - Wikipedia
2019-6-27 · A hologram is an image that appears to be three dimensional and which can be seen with the naked eye.Holography is the science and practice of making holograms. Typically, a hologram is a photographic recording of a light field, rather than an image formed by a lens.The holographic medium, i.e., the object produced by a holographic process (which itself may be referred to as a hologram) is ...