Polarizing optical article
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United States of America Patent
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-
Dec 9, 2003
Grant Date -
Sep 26, 2002
app pub date -
Dec 19, 2001
filing date -
May 2, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An object of the present invention is to provide a polarization optical article comprising a polarizer incorporated therein which provides views through sunglasses, goggles, lenses, or the like with colors close to natural colors by correcting a color hue with substantially grayish coloring. A polarization optical article according to the present invention has a multilayer structure including one polarizer sheet layer, and a colorant correcting the color hue specific to the polarizer sheet is blended or added into at least one of the layers in the structure, so that the optical article is rendered substantially grayish. The optical article comprises a composite sheet consisting of a plurality of sheets including one layer of a polarizer sheet and at least one layer of sheet other than the polarizor sheet which are bonded with each other by an adhesive or a pressure-sensitive adhesive, and a colorant correcting color hue specific to the polarizer sheet is blended into at least one of the polarizer sheet, the sheet other than the polarizor sheet, and the adhesive or pressure-sensitive adhesive layer.
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