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US 6,659,608 B2Granted
Polarizing optical article
AssigneeYamamoto Kogaku Co., Ltd.
InventorsTamenobu Yamamoto, Yoshihisa Ishiba, Koichiro Oka
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AssigneeYamamoto Kogaku Co., Ltd.
InventorsTamenobu Yamamoto, Yoshihisa Ishiba, Koichiro Oka
Estimating the term…
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.
A polarization optical article having a laminate structure including a composite sheet and a resin layer, the composite sheet comprising a plurality of sheets including one layer of a polarizer sheet and at least one layer of sheet other than the polarizer sheet which are bonded with each other by an adhesive or a pressure-sensitive adhesive, one of the sheets on the outermost layers of the composite sheet being integrated with the resin layer by means of thermal molding, wherein at least one of the polarizer sheet, the at least one layer of sheet other than the polarizer sheet, the adhesive or pressure-sensitive adhesive, and the resin layer contains a colorant for correcting color hue specific to the polarizer.
A polarization optical article having a laminated structure including a composite sheet and a resin layer, the composite sheet comprising three or more sheet layers including a polarizer sheet provided as one inner layer and sheets other than the polarizer sheet provided as the rest of the layers which are bonded with each other by an adhesive or a pressure-sensitive adhesive, one of the sheets on the outermost layers of the composite sheet being integrated with the resin layer by means of thermal molding, wherein at least one of the polarizer sheet, the sheets other than the polarizer sheet, the adhesive or pressure-sensitive adhesive, and the resin layer contains a colorant for correcting color hue specific to the polarizer.
Dependencies are inferred from the claim text.