Laminated transparent polarizing glasses and method of making
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United States of America Patent
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Sep 12, 1989
Issued Date -
N/A
app pub date -
May 16, 1985
filing date -
Jul 27, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention is directed to the production of laminated, transparent, polarizing glass articles. The inventive method contemplates five basic steps: (1) forming parallel microgrooves on a surface of a glass support; (2) washing and drying said surface; (3) depositing on said surface a mixture of organic colorants corresponding to the three primary colors and exhibiting a nematic state to yield a coating displaying polarizing properties; (4) treating the polarizing coating with an aqueous solution of inorganic salts having an acid pH; and (5) applying a continuous, optically transparent, composite film upon the polarizing coating and bonding it thereto.
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