Abstract: Provided is an ultraviolet-radiation absorbing glass product, characterized by: having a transmittance of ultraviolet radiation (TUV), as specified by ISO 9050: 2003, of 2% or less at a plate thickness of 3.5 mm, and transmittance of visible light (TVA) of 8 to 28% inclusive, based on the Standard Illuminant A at a plate thickness of 3.5 mm; and the color of the glass, as denoted by the chromaticity coordinates x, y in the XYZ color coordinate system based on a 2-degree visual field of the Standard Illuminant C as specified by JIS Z8701: 1999, satisfying the following expressions (1) and (2). (1) y??0.735×x+0.544 (2) y?1.389×x?0.

Abstract: An ultraviolet light absorbing glass according to the present invention includes 1.6% or more of t-Fe2O3, more than 1.0% of TiO2, and 0.016% or more of CoO. The ultraviolet light absorbing glass has t-Fe2O3/TiO2 of 1.2 or more, and an ultraviolet light transmittance (TUV400) at a sheet thickness of 3.1 mm of 2.0% or less, a ratio of visible light transmittance (TVA)/TUV400 of 10 or more, and a dominant wavelength (?D) of 555 nm or less.

Abstract: A glass sheet contains, as represented by mass percentage based on oxides, SiO2: 65-75%, Al2O3: 0-20%, MgO: 0-5%, CaO: 2-20%, Na2O: 5-20%, K2O: 0-10%, total iron in terms of Fe2O3 (t-Fe2O3): 0.2-1.0%, TiO2: 0.65-1.5%, and CeO2: 0.1-2.0%. A ratio of the content of MgO to RO is 0.20 or less, where RO is a total amount of MgO, CaO, SrO and BaO. Fe-redox is from 30 to 57%. The glass sheet has a visible light transmittance Tv_A of 65% or more, a solar transmittance Te of 50% or less, and a dominant wavelength Dw of transmitted light of from 508 to 580 nm, in terms of a 3.9-mm thickness of the glass sheet. A value of A=([t-Fe2O3]×Fe-redox)/[TiO2] is from 20 to 40, where [t-Fe2O3] is the content of t-Fe2O3 and [TiO2] is the content of TiO2.

Abstract: A glass sheet contains, as represented by mass percentage based on oxides, SiO2: 65 to 75%, Al2O3: 0 to 20%, MgO: 0 to 5%, CaO: 2 to 20%, Na2O: 5 to 20%, K2O: 0 to 10%, total iron in terms of Fe2O3: 0.2 to 1.0%, and TiO2: 0.65 to 1.5%. The glass sheet has a ratio of the content of MgO to RO of 0.20 or less denoting RO as a total amount of MgO, CaO, SrO and BaO, and a mass ratio of divalent iron in terms of Fe2O3 to the total iron in terms of Fe2O3 of from 30 to 57%. The glass sheet has a visible light transmittance Tv_A of 65% or more, a solar transmittance Te of 50% or less, and a dominant wavelength Dw of transmitted light of from 508 to 580 nm, in terms of a 3.9-mm thickness of the glass sheet.

Abstract: Provided is an ultraviolet-radiation absorbing glass product, characterized by: having a transmittance of ultraviolet radiation (TUV), as specified by ISO 9050: 2003, of 2% or less at a plate thickness of 3.5 mm, and transmittance of visible light (TVA) of 8 to 28% inclusive, based on the Standard Illuminant A at a plate thickness of 3.5 mm; and the color of the glass, as denoted by the chromaticity coordinates x, y in the XYZ color coordinate system based on a 2-degree visual field of the Standard Illuminant C as specified by JIS Z8701: 1999, satisfying the following expressions (1) and (2). (1) y??0.735×x+0.544 (2) y?1.389×x?0.

Abstract: Provided is an ultraviolet-radiation absorbing glass product, characterized by: having a transmittance of ultraviolet radiation (TUV), as specified by ISO 9050: 2003, of 2% or less at a plate thickness of 3.5 mm, and transmittance of visible light (TVA) of 8 to 28% inclusive, based on the Standard Illuminant A at a plate thickness of 3.5 mm; and the color of the glass, as denoted by the chromaticity coordinates x, y in the XYZ color coordinate system based on a 2-degree visual field of the Standard Illuminant C as specified by JIS Z8701: 1999, satisfying the following expressions (1) and (2). (1) y??0.735×x+0.544 (2) y?1.389×x?0.

Abstract: The purpose of the present invention is to provide an ultraviolet-absorbent glass that is suitable as a dark gray glass, that has a very low ultraviolet transmittance (TUV), and that has excellent color rendering properties for green. The present invention relates to an ultraviolet-absorbent glass in which: the ultraviolet transmittance (TUV) as defined in ISO 9050:2003 is 2% or less for a thickness of 2.8 mm; the visible light transmittance (TVA) based on a standard A light source is 10% to 30% inclusive for a thickness of 2.8 mm; the energy transmittance (TE) as defined in JIS R 3106:1998 is 30% or less for a thickness of 2.8 mm; a ratio R14/R9 for color rendering indices as defined in ISO 9050:1990 and JIS Z 8726:1990 is 1.8 or greater; and a ratio R14/R1 is 1.05 or greater.

Abstract: An ultraviolet light absorbing glass according to the present invention includes 1.6% or more of t-Fe2O3, more than 1.0% of TiO2, and 0.016% or more of CoO. The ultraviolet light absorbing glass has t-Fe2O3/TiO2 of 1.2 or more, and an ultraviolet light transmittance (TUV400) at a sheet thickness of 3.1 mm of 2.0% or less, a ratio of visible light transmittance (TVA)/TUV400 of 10 or more, and a dominant wavelength (?D) of 555 nm or less.

Abstract: Disclosed is an ultraviolet-absorbing glass article comprising a glass matrix composition including, in mass % in terms of oxide contents, 66-75% SiO2, 10-20% Na2O, 5-15% CaO, 0-6% MgO, 0-5% Al2O3, 0-5% K2O, at least 0.8% to less than 2.4% total iron content in terms of Fe2O3 (t-Fe2O3), 0-0.01% Cr2O3, 0.02-0.04% CoO, 0.0005-0.0045% Se, and greater than 0% to at most 1% TiO2, wherein: the amount of redox is from 20% to 30% inclusive; redox, t-Fe2O3, and TiO2 satisfy a predetermined relationship; and t-Fe2O3, Cr2O3, CoO, and Se satisfy a predetermined relationship.

Abstract: The purpose of the present invention is to provide an ultraviolet-absorbent glass that is suitable as a dark gray glass, that has a very low ultraviolet transmittance (TUV), and that has excellent color rendering properties for green. The present invention relates to an ultraviolet-absorbent glass in which: the ultraviolet transmittance (TUV) as defined in ISO 9050:2003 is 2% or less for a thickness of 2.8 mm; the visible light transmittance (TVA) based on a standard A light source is 10% to 30% inclusive for a thickness of 2.8 mm; the energy transmittance (TE) as defined in JIS R 3106:1998 is 30% or less for a thickness of 2.8 mm; a ratio R14/R9 for color rendering indices as defined in ISO 9050:1990 and JIS Z 8726:1990 is 1.8 or greater; and a ratio R14/R1 is 1.05 or greater.

Abstract: Disclosed is an ultraviolet-absorbing glass article comprising a glass matrix composition including, in mass % in terms of oxide contents, 66-75% SiO2, 10-20% Na2O, 5-15% CaO, 0-6% MgO, 0-5% Al2O3, 0-5% K2O, at least 0.8% to less than 2.4% total iron content in terms of Fe2O3 (t-Fe2O3), 0-0.01% Cr2O3, 0.02-0.04% CoO, 0.0005-0.0045% Se, and greater than 0% to at most 1% TiO2, wherein: the amount of redox is from 20% to 30% inclusive; redox, t-Fe2O3, and TiO2 satisfy a predetermined relationship; and t-Fe2O3, Cr2O3, CoO, and Se satisfy a predetermined relationship.

Abstract: Provided is an ultraviolet-radiation absorbing glass product, characterized by: having a transmittance of ultraviolet radiation (TUV), as specified by ISO 9050: 2003, of 2% or less at a plate thickness of 3.5 mm, and transmittance of visible light (TVA) of 8 to 28% inclusive, based on the Standard Illuminant A at a plate thickness of 3.5 mm; and the color of the glass, as denoted by the chromaticity coordinates x, y in the XYZ color coordinate system based on a 2-degree visual field of the Standard Illuminant C as specified by JIS Z8701: 1999, satisfying the following expressions (1) and (2). (1) y??0.735×x+0.544 (2) y?1.389×x?0.

Abstract: The present invention relates to an ultraviolet-absorbing glass article containing, as represented by mass % based on oxides, as a glass matrix composition: SiO2: 66 to 75%, Na2O: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, Al2O3: 0 to 5%, K2O: 0 to 5%, FeO: 0.2 to 1.2%, total iron as represented by Fe2O3: 2.4 to 4%, and TiO2: more than 0% and 1% or less, containing from 50 to 400 mass ppm of CoO, containing from 0 to 70 mass ppm of Se, containing from 0 to 800 mass ppm of Cr2O3, having a total content of CoO, Se and Cr2O3 of less than 0.1 mass %, and having an ultraviolet transmittance (TUV) (ISO9050:2003) of 2% or less at a thickness of 3.5 mm.

Abstract: The present invention provides an ultraviolet absorbing glass that is suitable as dark grey glass and has an extremely low ultraviolet transmittance, and at the same time has a low visible light transmittance and favorable solubility, and is low in raw material costs. The ultraviolet absorbing glass has a visible light transmittance (TVA) based on a standard illuminant A at a sheet thickness of 2.8 mm being 8% to 25%, and has an ultraviolet transmittance (TUV400) defined by ISO 13837:2008 convention A at a sheet thickness of 2.8 mm being 2.0% or less.

Abstract: An ultraviolet absorbing glass article comprising, as a glass matrix composition in mass % based on oxides, from 66 to 75% of SiO2, from 10 to 20% of Na2O, from 5 to 15% of CaO, from 0 to 6% of MgO, from 0 to 5% of Al2O3, from 0 to 5% of K2O, from 0.13 to 0.9% of FeO, at least 0.8% and less than 2.4% of total iron as represented by Fe2O3, and more than 1% and at most 5% of TiO2, containing from 100 to 500 mass ppm of CoO, from 0 to 70 mass ppm of Se and from 0 to 800 mass ppm of Cr2O3 in a total content of CoO, Se and Cr2O3 of less than 0.1 mass % based on the total content of components in the glass matrix composition, and having an ultraviolet transmittance of at most 2% at a thickness of 3.5 mm.

Abstract: The present invention relates to an ultraviolet-absorbing glass article containing, as represented by mass % based on oxides, as a glass matrix composition: SiO2: 66 to 75%, Na2O: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, Al2O3: 0 to 5%, K2O: 0 to 5%, FeO: 0.2 to 1.2%, total iron as represented by Fe2O3: 2.4 to 4%, and TiO2: more than 0% and 1% or less, containing from 50 to 400 mass ppm of CoO, containing from 0 to 70 mass ppm of Se, containing from 0 to 800 mass ppm of Cr2O3, having a total content of CoO, Se and Cr2O3 of less than 0.1 mass %, and having an ultraviolet transmittance (TUV) (ISO9050:2003) of 2% or less at a thickness of 3.5 mm.

Abstract: The present invention relates to an ultraviolet-absorbing glass article containing, as represented by mass % based on oxides, as a glass matrix composition: SiO2: 66 to 75%, Na2O: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, Al2O3: 0 to 5%, K2O: 0 to 5%, FeO: 0.1 to 0.9%, total iron as represented by Fe2O3: 0.6% or more and less than 2.4%, and V2O5: more than 0% and 1% or less, containing from 100 to 500 mass ppm of CoO, containing from 0 to 70 mass ppm of Se, containing from 0 to 800 mass ppm of Cr2O3, having a total content of CoO, Se and Cr2O3 of less than 0.1 mass %, and having an ultraviolet transmittance (TUV) (ISO9050:2003) of 2% or less at a thickness of 3.5 mm.

Abstract: To provide an ultraviolet absorbing glass article having a very low ultraviolet transmittance (TUV) suitable as privacy glass for vehicles. An ultraviolet absorbing glass article comprising, as a glass matrix composition as represented by mass % based on oxides, from 66 to 75% of SiO2, from 10 to 20% of Na2O, from 5 to 15% of CaO, from 0 to 6% of MgO, from 0 to 5% of Al2O3, from 0 to 5% of K2O, from 0.13 to 0.9% of FeO, at least 0.8% and less than 2.4% of total iron as represented by Fe2O3, and more than 1% and at most 5% of TiO2, containing from 100 to 500 mass ppm of CoO, from 0 to 70 mass ppm of Se and from 0 to 800 mass ppm of Cr2O3 in a total content of CoO, Se and Cr2O3 of less than 0.1 mass % based on the total content of components in the glass matrix composition, and has an ultraviolet transmittance (TUV) (ISO9050: 2003) of at most 2% at a thickness of 3.5 mm.

Abstract: To provide laminated glass excellent in the quality and the cost, in which two glass plates differing in the plate thickness can easily be bent with good accuracy. Laminated glass 60 comprising a plurality of glass plates 12 and 14 bent into a predetermined shape, and an interlayer 40 interposed between the plurality of glass plates 12 and 14, at least two glass plates 12 and 14 among the plurality of glass plates 12 and 14 differing in the plate thickness, wherein the two glass plates 12 and 14 differing in the plate thickness have different glass compositions, and at an optional temperature between the annealing point and the softening point of the thick glass plate 12, the thick glass plate 12 has a lower viscosity than the thin glass plate 14.

Abstract: A glass for chemical strengthening is a glass plate. The glass plate includes, as represented by mass percentage based on the following oxides, 65 to 72% of SiO2, 3.4 to 8.6% of Al2O3, 3.3 to 6% of MgO, 6.5 to 9% of CaO, 13 to 16% of Na2O, 0 to 1% of K2O, 0 to 0.2% of TiO2, 0.01 to 0.15% of Fe2O3 and 0.02 to 0.4% of SO3. In the glass plate, (Na2O+K2O)/Al2O3 is 1.8 to 5.