hologram which was a 4x3 transmission view of chess pieces on a board was contained in the 1967 World Book Encyclopedia Science Yearbook. Along with it was an article that described the production of the hologram and the basic information about the history of holography.An advancement that was made in holography was a 05-watt He-Ne laser. “The laser was used on a nine-tone granite table in a 30-second exposure to make the original from which all the copies were produced (Fournier, 55).” Another major advance in display holography occurred in 1968 with the help of Dr. Stephen A. Benton. Dr. Benton invented a white-light transmission holography while researching holographic television at Polaroid Research Laboratories. This type of hologram can be viewed in ordinary white light creating a "rainbow" image from the seven colors, which make up white light. The depth and brilliance of the image and its rainbow spectrum soon infatuated artists who adapted this technique to their work and brought holography further into public awareness. Benton's invention is especially significant because it made mass production possible of holograms using an embossing technique. These holograms are "printed" by stamping the interference pattern onto plastic. The resulting hologram can be duplicated millions of times for only a few cents apiece. As a result, the publishing, advertising, and banking industries are currently today using embossed holograms. Dennis Gabor was finally recognized for his magnificent work in 1971. Gabor was awarded the Nobel Prize in Physics for his discovery of holography in 1947. Lloyd Cross discovered what is called the integral hologram. He did this by combining white light transmission holography with conventional cinematography to produce moving 3 dimensional images in the year of 1972. “Sequential frames of 2-D motion-picture footage of a rotating subject are recorded on holographic film (Fournier 56...
