Work

During the 19th century photographic methods were developed that resulted in two-dimensional images. In 1951 Dennis Gabor discovered a way of producing images with the illusion of depth. The method was based on interference—interaction between light waves—and coherence—light waves aligned in phase with one another. Light falling on an object is captured on photographic film along with a reference beam that did not fall on the object. When only the reference beam falls on the developed film, the light is bent so that a reproduction with depth is produced.