Transparent reflection-type
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United States of America Patent
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-
Aug 15, 1989
Issued Date -
N/A
app pub date -
Sep 26, 1988
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A transparent-type hologram comprising a transparent hologram-forming layer and a holographic effect-enhancing layer comprising a thin transparent film, the holographic effect-enhancing layer being laminated on the hologram-forming portion of the transparent hologram-forming layer. The holographic effect-enhancing layer has a refractive index different from that of the transparent hologram-forming layer.
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Cited Art Landscape
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