Grazing incidence holograms and system and method for producing the same
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United States of America Patent
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Jan 20, 1998
Grant Date -
N/A
app pub date -
Oct 23, 1995
filing date -
Jan 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and system for recording and displaying grazing-incidence (i.e., steep reference beam angle) holograms supported on a substrate having thin edge-illuminatable geometry. The system and process of the present invention uses thin edge-illuminated substrates that facilitate optimal coupling of the reference light beam at steep angles approaching grazing incidence. Different recording techniques are employed when the index of refraction of the substrate is greater than that of the recording medium, than when the index of refraction of the substrate is less than that of the recording medium.
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