Method of preparing a hologram using readily available light sources
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United States of America Patent
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Jan 29, 1991
Grant Date -
N/A
app pub date -
Mar 23, 1989
filing date -
Mar 24, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preparing a color separation holographic master which can be used in the preparation of a colored hologram of an object, by illuminating the object with light having a very narrow wavelength range and capturing the reflectance values on the object using a detector placed as if it were along the axis of the laser to be used for the holographic exposure and storing these reflectance values as a positive image, then carrying out a holographic exposure of the object using a laser there being present in the object beam between the laser and the object as a light modulating means the positive image of the captured reflectance values, and then processing the holographic material to fix the holographic fringes therein.
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