Apparatus for making holograms including a variable beam splitter assembly
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United States of America Patent
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Apr 28, 1998
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N/A
app pub date -
Aug 15, 1996
filing date -
Nov 27, 1992
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Abstract
A method and apparatus for making holograms includes a technique for exposing a film substrate or other light-sensitive medium to consecutive two dimensional images, together representative of a physical three-dimensional system, to generate a three dimensional hologram of the physical system. Low beam ratios are employed to superimpose multiple (20-300) images on the substrate. Each image is relatively weak, but the combination of the series of weak images ultimately appears as a single clearly defined hologram.
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