Half mirror
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 13, 2007
app pub date -
Mar 1, 2007
filing date -
Mar 10, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A half mirror comprises: a beam splitter coating formed on one main surface of a transparent substrate; an anti-reflection coating formed on the other main surface; and a correction coating having substantially the same refractive index as that of the transparent substrate is formed between the transparent substrate and the anti-reflection coating so that a warpage of the transparent substrate caused by a stress of the beam splitter coating is corrected by a stress of the correction coating.
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