Optical-digital hologram recording
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United States of America Patent
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Oct 20, 1987
Grant Date -
N/A
app pub date -
Feb 20, 1985
filing date -
Feb 20, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hologram is formed of an object by calculating a two dimensional complex field distribution for a diffraction pattern of the object, and then modulating a first coherent light beam with amplitude and phase values of the two-dimensional complex field distribution as the first coherent light beam is scanned across a recording medium. A second reference coherent light beam is scanned across the recording medium and intersects the first modulated coherent light beam in the recording medium as the two beams are scanned. A reflection hologram is synthesized in the recording medium by directing the two beams from opposite sides of the film recording medium.
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