Method for producing an inhomogeneous film for selective reflection/transmission of solar radiation
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United States of America Patent
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Mar 30, 1982
Issued Date -
N/A
app pub date -
Jun 20, 1979
filing date -
Jun 20, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sputtered thin film coating characterized by a stepwise and/or variable refractive index as a function of film depth. By means of an in-line assembly of planar magnetrons, each magnetron essentially isolated from the others but for a region of sputtering overlap, select materials and combinations of said materials with reactive gases can be continuously deposited upon a dynamic substrate whereby to obtain pre-determined refractive index gradients. Substrates coated with an inhomogeneous thin film exhibit superior non-spectral reflective characteristics particularly desirable for architectural designs and applications.
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Cited Art Landscape
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