11 Facts About Holography

Holography is a technique that enables a wavefront to be recorded and later re-constructed.

Holography is best known as a method of generating three-dimensional images, but it has a wide range of other applications.

Holography's work, done in the late 1940s, was built on pioneering work in the field of X-ray microscopy by other scientists including Mieczyslaw Wolfke in 1920 and William Lawrence Bragg in 1939.

Holography is a technique that enables a light field to be recorded and later reconstructed when the original light field is no longer present, due to the absence of the original objects.

Holography can be thought of as somewhat similar to sound recording, whereby a sound field created by vibrating matter like musical instruments or vocal cords, is encoded in such a way that it can be reproduced later, without the presence of the original vibrating matter.

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Holography was certainly the first and best-known surrealist to do so, but the 1972 New York exhibit of Dali holograms had been preceded by the holographic art exhibition that was held at the Cranbrook Academy of Art in Michigan in 1968 and by the one at the Finch College gallery in New York in 1970, which attracted national media attention.

Notably, there was the San Francisco School of Holography established by Lloyd Cross, The Museum of Holography in New York founded by Rosemary H Jackson, the Royal College of Art in London and the Lake Forest College Symposiums organised by Tung Jeong.

In 1971, Lloyd Cross opened the San Francisco School of Holography and taught amateurs how to make holograms using only a small helium-neon laser and inexpensive home-made equipment.

Holography is distinct from specular holography which is a technique for making three-dimensional images by controlling the motion of specularities on a two-dimensional surface.

Holography has been widely referred to in movies, novels, and TV, usually in science fiction, starting in the late 1970s.

Holography served as an inspiration for many video games with the science fiction elements.