Abstract: An object of the present invention is to improve uneven coloring by polarization color due to birefringence of a polarization optical article. Disclosed is a polarization optical article in which uneven coloring by polarization color has been improved, the polarization optical article being a multi-layered polarization optical article including at least a linear polarization functional portion, a retardation functional portion and a back-up resin portion, characterized in that the linear polarization functional portion, the retardation functional portion and the back-up resin portion are arranged in order from an objective side toward an ocular side. The linear polarization functional portion is, for example, a linear polarizer, the retardation functional portion is, for example, a retardation sheet, and the retardation functional portion has, for example, a retardation of 1,000 nm or more. The back-up resin is a polycarbonate resin, a polyamide resin or the like.

Abstract: An object of the present invention is to provide single-lens type polarizing glasses which are optically sufficient in performance, and are rich in variety from a view point of design. Both of a polarizer of a right eye lens and a polarizer of a left eye lens can be two independent polarizing plates, both sides of which are protected with protective sheets, respective polarizing plates are bending-processed into a spherical, nonspherical or toric shape, and a backup resin is thermally adhered on the protective sheet on a concave side of the bending-processed polarizing plate to make a single-lens type polarizing lens, which is further prepared into single-lens type polarizing glasses.

Abstract: An object of the present invention is to improve uneven coloring by polarization color due to birefringence of a polarization optical article. Disclosed is a polarization optical article in which uneven coloring by polarization color has been improved, the polarization optical article being a multi-layered polarization optical article including at least a linear polarization functional portion, a retardation functional portion and a back-up resin portion, characterized in that the linear polarization functional portion, the retardation functional portion and the back-up resin portion are arranged in order from an objective side toward an ocular side. The linear polarization functional portion is, for example, a linear polarizer, the retardation functional portion is, for example, a retardation sheet, and the retardation functional portion has, for example, a retardation of 1,000 nm or more. The back-up resin is a polycarbonate resin, a polyamide resin or the like.

Abstract: An object of the present invention is to provide single-lens type polarizing glasses which are optically sufficient in performance, and are rich in variety from a view point of design. Both of a polarizer of a right eye lens and a polarizer of a left eye lens can be two independent polarizing plates, both sides of which are protected with protective sheets, respective polarizing plates are bending-processed into a spherical, nonspherical or toric shape, and a backup resin is thermally adhered on the protective sheet on a concave side of the bending-processed polarizing plate to make a single-lens type polarizing lens, which is further prepared into single-lens type polarizing glasses.

Abstract: A circularly polarizing plate with a thermally adhering function imparted thereto, a circularly polarizing lens which is reinforced with a backup resin, and is distorted with difficulty, and circularly polarizing glasses. Also provided is a clockwise or counterclockwise circularly polarizing plate including a multilayered circularly polarizing plate having at least a phase difference functional part, a linear polarizing functional part, and a thermally adhering functional part which thermally adheres to a backup resin. The phase difference functional part is arranged on one side of the linear polarizing functional part, and the thermally adhering functional part is arranged on another side. Also provided is a clockwise or counterclockwise circularly polarizing lens, which is a bending-processed product of the above circularly polarizing plate.

Abstract: In a lens for safety glasses of the present invention, a first lens element which shields a laser beam is laid on a second lens element for antiglare. The first and the second lens element may be affixed together. In the lens for safety glasses, the first lens element includes a substrate which contains an absorbent for selectively absorbing a laser beam having a specific wavelength in an ultraviolet wavelength region, a visible light wavelength region or an infrared wavelength legion and is transparent in the visible light wavelength region. The safety glasses with the lens may provide comfortable fit and a good appearance, causes less misjudgment of colors and prevents loss of correct color sense, and has both a laser-beam shielding function and an antiglare function.

Abstract: Eyeglasses configured in such a way that parameter (h) is 20 mm or greater and (l/h) is 6 or smaller, the parameters (h) and (l) being defined as follows: the length of a straight line (L) connecting portions (C) to which left and right temples are attached is (l) mm, and the length of a normal (H) to the straight line (L) drawing from the forefront surface (E) of a front portion (B) located on the central line (D) of the eyeglasses is (h) mm.

Abstract: A protective device for eyes, for example, goggles of a shield, includes a double lens member, a frame member and a face fixation member. The double lens member includes a front lens, a back lens and a gasket. The front lens and the back lens are made of polycarbonate resins, polyurethane resins, polyester resins or polyamide resins. The front lens and the back lens are disposed in parallel with the gasket therebetween in order to form a space surrounded with the front lens, the back lens and the gasket. This device is excellent in the antifogging property in the double lens.

Abstract: Eyeglasses configured in such a way that parameter (h) is 20 mm or greater and (l/h) is 6 or smaller, the parameters (h) and (l) being defined as follows: the length of a straight line (L) connecting portions (C) to which left and right temples are attached is (l) mm, and the length of a normal (H) to the straight line (L) drawing from the forefront surface (E) of a front portion (B) located on the central line (D) of the eyeglasses is (h) mm.

Abstract: An object of the present invention is to provide a polarizing laminate which is resistant to impact, has the high polarization degree, hardly causes a solvent crack, and hardly causes a fine crack even when perforation-processed, for example, goggles, sunglasses, prescription sunglasses, and shields which are resistant to impact, have higher stability, and can effectively prevent glare. There is provided a polarizing laminate comprising two protective sheets having approximately the same thickness, and a polarizer sheet held by them, wherein a protective sheet and a polarizer sheet are adhered, the protective sheet is any of a polyamide-based resin sheet, and a polyurethane-based resin sheet, and the laminate has the function as an optical lens.

Abstract: A protective device for eyes, for example, goggles of a shield, includes a double lens member, a frame member and a face fixation member. The double lens member includes a front lens, a back lens and a gasket. The front lens and the back lens are made of polycarbonate resins, polyurethane resins, polyester resins or polyamide resins. The front lens and the back lens are disposed in parallel with the gasket therebetween in order to form a space surrounded with the front lens, the back lens and the gasket. This device is excellent in the antifogging property in the double lens.

Abstract: A polarizing molded article, which includes a polarizing plate-containing laminated structure. The laminated structure includes a polarizing sheet layer that is held between two protective sheet layers. One of the two protective sheet layers is connected to a polyurethane sheet layer or a polyamide sheet layer with an adhesive or a pressure-sensitive adhesive. A thermally molded resin layer is thermally adhered to the polyurethane sheet layer or the polyamide sheet layer.

Abstract: In a lens for safety glasses of the present invention, a first lens element which shields a laser beam is laid on a second lens element for antiglare. The first and the second lens element may be affixed together. In the lens for safety glasses, the first lens element includes a substrate which contains an absorbent for selectively absorbing a laser beam having a specific wavelength in an ultraviolet wavelength region, a visible light wavelength region or an infrared wavelength legion and is transparent in the visible light wavelength region. The safety glasses with the lens may provide comfortable fit and a good appearance, causes less misjudgment of colors and prevents loss of correct color sense, and has both a laser-beam shielding function and an antiglare function.

Abstract: There is provided a method for continuously manufacturing an optical article which comprises a first step of thermal press-molding a sheet-like curved body and a second step of insert injection-molding a back resin on a concave side of the sheet-like curved body, while transferring the continuous sheet in a longitudinal direction, using an apparatus for manufacturing an optical article in which a press-molding machine which can thermal press-mold the sheet-like curved body and an insert injection-molding machine equipped with a mold having a curvature similar to that of the sheet-like curved body are serially positioned in this order, wherein a cycle of thermal press-molding and a cycle of insert injection-molding are synchronized to continuously insert-mold the back resin on a concave side of the sheet-like curved body while continuously thermal press-molding the sheet-like curved body.

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.

Abstract: A polarizing optical composite equipped with a polarizing plate holding a polarizer sheet layer between two protective sheet layers, wherein the polarizing sheet layer has on one side thereof at least two layers, in a body, constructed of materials different each other. The polarizing optical composite has high impact resistance and high degree of polarization, and is used as, for example, goggles, sunglasses, and spectacles, which have high impact resistance, has more safety, and can prevent dazzling light.

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.

Abstract: The invention has an object to obtain a polarizing and dimming transparent optical product having both a polarizing function and a dimming function, for example, polarizing and dimming sunglasses, goggles and lenses.

Abstract: The invention has an object to obtain a polarizing and dimming transparent optical product having both-a polarizing function and a dimming function, for example, polarizing and dimming sunglasses, goggles and lenses. The transparent optical product according to the invention has a lamination structure including one polarizer sheet layer, and at least one layer other than the polarizer sheet having the dimming function. Moreover, a plurality of sheets including one polarizer sheet and at least one sheet other than the polarizer sheet are mutually bonded with an adhesive or a binder to constitute a composite sheet, and at least one of the non-polarizer sheets and adhesive or binder layers in the composite sheet has the dimming function.

Abstract: According to the present invention, there are provided a polarizing molded article, which comprises a polarizing plate-containing laminated structure in which a polarizer sheet layer is held between two protective sheet layers, wherein one layer of the protective sheet layer and a polyurethane sheet layer or a polyamide sheet layer are connected with an adhesive or a pressure-sensitive adhesive, and the polyurethane sheet layer or the polyamide sheet layer and a thermally molding resin layer are thermally adhered, and a process for preparing a polarizing molded article, which comprises preparing a polarizing plate having a structure in which a polarizer sheet layer is held between two protective sheet layers, preparing a polarizing composite in which a polyurethane sheet layer or a polyamide sheet layer is connected to one layer of the protecting sheet layer of the polarizing plate with an adhesive or a pressure-sensitive adhesive, heat press molding the polarizing composite into a spherical shaped body, and