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Macintosh Picture Format  |  1996-09-10  |  153.7 KB  |  640x310  |  8-bit (214 colors)
   ocr: Hologram - at an object and the other (the reference beam) at a holographic plate. Light from the object beam reflects off the object, and, carrying information about the color, contrast, and dimensionality of the object, reaches the holographic plate and inter- feres with light from the reference beam. If waves of light from the two sources are both at crest or both at trough when they reach the plate, they reinforce each other and a light area is created in the emulsion. If they aren't, they cancel each other out and a dark area results. The developed plate is called a hologram 35