PROCESS FOR MANUFACTURING A POLARIZED OPTICAL ARTICLE AND POLARIZED OPTICAL ARTICLE
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United States of America Patent
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Issued Date -
Aug 15, 2013
app pub date -
Feb 15, 2012
filing date -
Feb 15, 2012
priority date (Note) -
Abandoned
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Abstract
A process for manufacturing a polarized optical device and the resulting optical device. In the process, an optical device is coated with an adhesive. A PVA polarizing film is moistened to render it formable. The PVA polarizing film is laminated on to the adhesive coating so that the PVA polarizing film forms to the shape of the optical device. The film, adhesive, device ensemble is then heat annealed. The PVA polarizing film is then contacted with a boric acid solution to crosslink the PVA so that it can withstand use and further processing. A polarized optical device includes an adhesive disposed between an optical base element and a PVA polarizing film.
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