Plastic mirrors having enhanced thermal stability
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United States of America Patent
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Jan 26, 1999
Issued Date -
N/A
app pub date -
Jul 2, 1996
filing date -
Jan 13, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mirror having improved resistance to heat distortion and loss of dimensional stability when exposed to heat radiation . The mirror has a substrate of glass or plastic having front and back surfaces which can be of similar or different shape , and is coated with similar or dissimilar low-emissivity reflected layers on both surfaces. Radiation is reflected by the back surface (away from the mirror) thereby reducing amount of energy which is absorbed at the back surface of the mirror. This equalizes the temperature through the mirror and reduces thermally included warping of the mirror.
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