Color deformable mirror device having optical thin film interference color coatings
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United States of America Patent
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-
Apr 8, 1997
Grant Date -
N/A
app pub date -
Sep 28, 1994
filing date -
Sep 28, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor device comprises a plurality of colored deformable mirrors controllable by electrical circuitry. Groups of mirrors, responsive to the electronic signals, are selectably operable to reflect incident light. The deformable mirrors are coated with an optical thin film interference color coating having at least a layer that is substantially transparent to the visible light. As well the optical thin film interference color coating includes at least one further layer that is partially absorbing with respect to the visible light. The spectral reflectance and absorptance of the deformable mirror is modified in order to obtain a desired reflected color by the process of optical interference enhanced absorption in the optical thin film interference color coating. The optical thin film interference color coating has predetermined layer thicknesses and materials; the substantially transparent layer substantially determines the desired reflected color.
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