Abstract: The ultraviolet/infrared absorbent low transmittance glass has an almost neutral color such as greenish gray, low visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance, and is suitable for a rear window of a vehicle and capable of protecting privacy. The glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is between 5 and 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is between 10 and 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including: 1.25 to 1.5 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.01 to 0.019 wt. % CoO; more than 0.0008 wt. % and equal to or less than 0.003 wt. % Se; and 0.055 to 0.1 wt. % NiO.

Abstract: The present invention provides a light-colored high-transmittance glass sheet including, as coloring components, in weight percent, less than 0.06% total iron oxide in terms of Fe2O3 (T—Fe2O3); 0.5 to 5 ppm CoO; and 0 to 0.45% cerium oxide; wherein the ratio of FeO in terms of Fe2O3 to T—Fe2O3 is less than 40%; and wherein the glass sheet has a dominant wavelength of 470 to 495 nm when measured at a glass sheet thickness of 10 mm. The present invention also provides a light-colored high-transmittance glass sheet of light neutral gray or bronze tint with a dominant wavelength of 560 to 585 nm.

Abstract: The ultraviolet/infrared absorbent low transmittance glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO (a total amount of MgO and CaO is between 5 to 15 wt. %); 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O (a total amount of Na2O and K2O is between 10 to 20 wt. %); and 0 to 5 wt. % B2O3; and colorants including: 1.2 to 2.2 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; greater than 0.03 wt. % CoO; less than 0.0001 wt. % Se; and 0 to 0.2 wt. % NiO. The glass has a visible light transmittance measured by the illuminant A of not greater than 12% in case that the glass has a thickness of 4 mm. The glass has almost neutral color such as bluish green shade or deep green shade, low visible light transmittance, low solar energy transmittance and low ultraviolet transmittance, so that it is useful for windows of vehicles or buildings particularly for thickness and weight reduction of a privacy preventing glass.

Abstract: Ultraviolet/infrared absorbent low transmittance glass having an almost neutral color such as turquoise blue and deep green and exhibiting low or middle visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance is formed of base glass containing: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 2 to 10 wt. % MgO; 5 to 15 wt. % CaO (a total amount of MgO and CaO is 7 to 15 wt. %); 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O (a total amount of Na2O and K2O is 10 to 20 wt. %); and 0 to 5 wt. % B2O3, and colorants including: 1.25 to 2.2 wt. % total iron oxide (T-Fe2O6) expressed as Fe2O3; 0.001 to 0.018 wt. % CoO; 0 or less than 0.0008 wt. % Se; and 0.028 to 0.2 wt. % NiO.

Abstract: An ultraviolet/infrared absorbent glass is formed of base glass, and colorants. The base glass includes 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na2O and K2O; 0.05 to 0.3 wt. % SO3; and 0 to 5 wt. % B2O3. The colorants are formed of 0.35 to 0.55 wt. % the total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2 and 0 to 1.5 wt. % TiO2. FeO expressed as Fe2O3 is equal to or more than 20 wt.% and less than 27 wt. % of T-Fe2O3. The glass has high visible light transmittance and light greensih color shade so that it is useful for a window of a vehicle and a building.

Abstract: Light-colored high-transmittance glass is provided which is made of a composition containing, as coloring components, on a weight percent basis, 0.02 to 0.06% (excluding 0.06%) total iron oxide based on Fe2O3, less than 0.024% FeO, and 0 to 0.5% cerium oxide and having a ratio of FeO based on Fe2O3 to the total iron oxide of less than 40%. The light-colored high-transmittance glass has a solar radiation transmittance of at least 87.5% and a visible light transmittance measured with the illuminant C of at least 90% when having a thickness of 3.2 mm. A glass sheet with a conductive film also is provided which includes a transparent conductive film formed on a surface of a glass sheet formed of the light-colored high-transmittance glass.

Abstract: The present invention can provide an alkali free glass containing as a refining agent, a tin oxide and at least one selected from the group consisting of a cerium oxide, a manganese oxide, a tungsten oxide, a tantalum oxide and a niobium oxide.

Abstract: An ultraviolet/infrared absorbent low transmittance glass consists of base glass, and colorants. The base glass comprises 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; greater than 2 to less than or equal to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 7 to 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is 10 to 20 wt. %; and 0 to 5 wt. % B2O3. The colorants without Se is formed of 1.25 to 2.2 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.001 to 0.03 wt. % CoO; and 0.003 to 0.2 wt. % NiO. The glass has a turquoise blue or deep green color, and exhibits low or middle visible light transmittance, low total solar energy transmittance and low ultraviolet transmittance.

Abstract: An ultraviolet and infrared radiation absorbing green glass comprises: in % by weight, as coloring components,

Abstract: A colored film-coated ultraviolet/infrared absorbent glass plate is formed of base glass, colorants, and a colored film. The base glass includes 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % total amount of MgO and CaO; 10 to 20 wt. % total amount of Na2O and K2O; 0.05 to 0.3 wt. % of SO3; and 0 to 5 wt. % B2O3. The colorants includes 0.35 to 0.55 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2; and 0 to 0.5 wt. % TiO2. FeO expressed as Fe2O3 is equal to or more than 20 wt. % and less than 27 wt. % of T-Fe2O3. The colored film has a red color shade with a thickness between 30 nm and 300 nm and includes fine particles of gold and silicon oxide of more than 50 wt. % and equal to or less than 95 wt. %. The colored film is applied onto a surface of the ultraviolet/infrared absorbent glass plate.

Abstract: The ultraviolet/infrared absorbent low transmittance glass has an almost neutral color such as greenish gray, low visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance, and is suitable for a rear window of a vehicle and capable of protecting privacy. The glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is between 5 and 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is between 10 and 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including: 1.25 to 1.5 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.01 to 0.019 wt. % CoO; more than 0.0008 wt. % and equal to or less than 0.003 wt. % Se; and 0.055 to 0.1 wt. % NiO.

Abstract: The ultraviolet/infrared absorbent low transmittance glass has a grayish green color shade, low visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance, and is suitable for a rear window of a vehicle and capable of protecting privacy. The glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is between 5 and 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is between 10 and 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including: more than 0.95 wt. % and 1.2 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.001 to 0.0180 wt. % CoO; 0.0001 to 0.0008 wt. % Se; and 0.003 to 0.2 wt. % NiO.

Abstract: A method for shifting the absorption peak wavelength in the wavelength range 900-1600 nm of an infrared radiation absorbing glass from less than 1100 nm to 1100 nm or longer without substantially changing the tint of the glass, comprising the step of irradiating with ultraviolet light of 400 nm or shorter at an energy density of 1.0×106 J/m2/hr or more to increase the content of FeO in the irradiated glass by reducing Fe (III) to Fe (II) ,the ultraviolet light irradiated glass thereby comprising 0.02 wt. % or more FeO in terms of Fe2O3. The glass to be irradiated comprises, in % by weight: 65 to 80% SiO2, 0 to 5% Al2O3, 0 to 10% MgO, 5 to 15% CaO, 10 to 18% Na2O, 0 to 5% K2O, 5 to 15% MgO+CaO, 10 to 20% Na2O+K2O, and 0 to 5% B2O3; 0.02% or more total iron oxide (T-Fe2O3) in terms of Fe2O3, 0 to 2.0% CeO2, 0 to 1.0% TiO2, 0 to 0.005% CoO, and 0 to 0.005% Se.

Abstract: An ultraviolet/infrared absorbent low transmittance glass is formed of a base glass and colorants. The base glass contains 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is between 5 and 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is in a range of 10 and 20 wt. %; and 0 to 5 wt. % B2O3. The colorants contains more than 1.2 wt. % and not more than 1.5 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; equal to or more than 0.003 wt. % and less than 0.015 wt. % CoO; 0.0009 to 0.005 wt. % Se; 0.0005 to 0.05 wt. % NiO; and 0 to 0.2 wt. % of TiO2, wherein FeO expressed as Fe2O3 is between 15 and 50 wt. % of T-Fe2O3. The ultraviolet/infrared absorbent low transmittance glass has a bronze or gray color shade, low visible light transmittance, low solar energy transmittance and low ultraviolet transmittance, so that it is useful for a privacy protecting glass in a rear window of a vehicle.

Abstract: The ultraviolet/infrared absorbent glass consisting of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na2O and K2O; 0.05 to 0.3 wt. % SO3; and 0 to 5 wt. % B2O3, and colorants including: 0.35 to 0.55 wt. % the total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2 and 0 to 1.5 wt. % TiO2, wherein FeO expressed as Fe2O3 is in a range of 20 to 27 wt. % (excluding 27 wt. %) of T-Fe2O3. The ultraviolet/infrared absorbent glass plate comprising the ultraviolet/infrared absorbent glass wherein the glass has the visible light transmittance of equal to or more than 75%, the solar energy transmittance of equal to or less than 60%, the ultraviolet transmittance of equal to or less than 15%, the dominant wavelength in a range of 495 to 535 nm and the excitation purity of equal to or less than 2.5%.

Abstract: A window glass for an automobile and the window structure capable of clearly indicating visually warning by a high mounted stop lamp, etc., while having a heat-shielding function and a privacy protecting function are provided. A heat-shielding film is formed on the concave side (inside the automobile) of the window glass for an automobile, the film is partially removed or modified, and the visible light transmission of the removed or modified portion is increased to a predetermined value than the visible light transmission of other film-formed portion.

Abstract: An ultraviolet and infrared radiation absorbing glass is disclosed, comprising, in % by weight:basic glass components comprising65 to 80% SiO.sub.2,0 to 5% Al.sub.2 O.sub.3,0 to 10% MgO,5 to 15% CaO,10 to 18% Na.sub.2 O,0 to 5% K.sub.2 O,5 to 15% MgO+CaO,10 to 20% Na.sub.2 O+K.sub.2 O,0 to 5% B.sub.2 O.sub.3, and0.07 to 0.18% SO.sub.3, andcoloring components comprising0.40 to 0.90% total ion oxide (T-Fe.sub.2 O.sub.3) in terms of Fe.sub.2 O.sub.3,1.0 to 2.0% CeO.sub.2, and0 to 1.0% TiO.sub.2,with 27 to 40% of said T-Fe.sub.2 O.sub.3 being FeO in terms of Fe.sub.2 O.sub.3.

Abstract: Ultraviolet and infrared radiation absorbing glass comprising, as basic glass components, 65 to 80% by weight of SiO.sub.2, 0 to 5% by weight of Al.sub.2 O.sub.3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na.sub.2 O, 0 to 5% by weight of K.sub.2 O, 5 to 15% by weight in total of MgO and CaO, 10 to 20% by weight in total of Na.sub.2 O and K.sub.2 O, and 0 to 5% by weight of B.sub.2 O.sub.3 ; and as coloring components, 0.75 to 0.95% by weight, in terms of Fe.sub.2 O.sub.3, of total iron oxide, 1.2 to 1.4% by weight of CeO.sub.2, and 0 to 0.5% by weight of TiO.sub.2, and satisfying equation (I):(0.2.times.(CeO.sub.2)-0.04).ltoreq.(FeO/T-Fe.sub.2 O.sub.3).ltoreq.(0.2.times.(CeO.sub.2)+0.08) (I)wherein (CeO.sub.2) represents the amount of CeO.sub.2 in terms of percent by weight, and (FeO/T-Fe.sub.2 O.sub.3) represents the weight ratio of FeO in terms of Fe.sub.2 O.sub.3 to the total iron oxide in terms of Fe.sub.2 O.sub.

Abstract: Ultraviolet and infrared radiation absorbing glass comprising, as basic glass components, 65 to 80% by weight of SiO.sub.2, 0 to 5% by weight of Al.sub.2 O.sub.3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na.sub.2 O, 0 to 5% by weight of K.sub.2 O, 5 to 15% by weight in total of MgO and CaO, 10 to 20% by weight in total of Na.sub.2 O and K.sub.2 O, and 0.2 to 5.0% by weight of B.sub.2 O.sub.3 ; and as coloring components, 0.5 to 1.0% by weight, in terms of Fe.sub.2 O.sub.3, of total iron oxide having a ratio of FeO based on the total iron oxide of 0.20 to 0.40, 0.2 to 2.0% by weight of CeO.sub.2, and 0 to 1.0% by weight of TiO.sub.2, and ultraviolet and infrared radiation absorbing glass comprising, as basic glass components, 65 to 80% by weight of SiO.sub.2, 0 to 5% by weight of Al.sub.2 O.sub.3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na.sub.2 O, 0 to 5% by weight of K.sub.

Abstract: An ultraviolet and infrared radiation absorbing and low transmitting glass having neutral gray to neutral grayish green tint and also having low visible light and solar energy transmission and a low ultraviolet light transmission, further showing an excellent protection of interior trim of automobiles against deterioration and fading, and also showing privacy protection effect when applied especially to window glass of automobiles and to window glass of buildings. The ultraviolet and infrared radiation absorbing and low transmitting glass comprising in % by weight: basic glass components comprising 65 to 80% SiO.sub.2, 0 to 5% Al.sub.2 O.sub.3, 0 to 10% MgO, 5 to 15% CaO, 5 to 15% MgO+CaO, 10 to 20% Na.sub.2 O, 0 to 5% K.sub.2 O, 10 to 20% Na.sub.2 O+K.sub.2 O, and 0 to 5% B.sub.2 O.sub.3, and coloring components comprising 0.65 to 0.95% total iron oxide (T-Fe.sub.2 O.sub.3) in terms of Fe.sub.2 O.sub.3, 0.9 to 2.3% TiO.sub.2, 0 to 2.0% CeO.sub.2, 0.019 to 0.04% CoO, 0 to 0.002% Se, and 0.01 to 0.