Photography Vs Holography

1.4 Photography Vs Holography


Holography is a three-dimensional imaging technique. It uses laser light to record the patterns of light waves reflected from an object onto the emulsion of light sensitive film (or glass plates). When that film is developed, and re-exposed to laser light (or normal incandescent light like most holograms today), it re-creates -- in space -- all the points of light that originally came from the object. The resulting image, either behind or in front of the holographic film, has all the dimensions of the original object or looks so real that you are tempted to reach out and touch it -- only to find nothing there but focused light.


Unlike photography or painting, holography can render a subject with complete dimensional fidelity. A hologram creates everything your eyes see -- depth, size, shape, texture, and relative position – from many points of view.