Abstract: The present invention provides a glass composition that exhibits a fluorescence function and an optical amplification function in a wide wavelength range. This glass composition includes a bismuth oxide, a silicon oxide, an aluminum oxide, and a divalent metal oxide, and the glass composition emits fluorescence in an infrared wavelength region through irradiation of excitation light, with bismuth contained in the bismuth oxide functioning as a fluorescent source.

Abstract: The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B2O3, and a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0. As the univalent metal ions are suitable Li, Na, K, Cs, Ag, Cu, and Au.

Abstract: The present invention provides a glass composition that exerts an emission function or an optical amplification function in a wide wavelength range. The glass composition contains, bismuth oxide, aluminium oxide, and a glass network former, and a main component of the glass network former is germanium dioxide. Bismuth contained in bismuth oxide functions as an emission species and emits fluorescence in the infrared wavelength region by irradiation of excitation light. The glass composition may further contain a monovalent or divalent metal oxide.

Abstract: The present invention provides a glass composition that exhibits a fluorescence function and an optical amplification function in a wide wavelength range. This glass composition includes a bismuth oxide, an aluminum oxide, and a glass network former. The glass network former includes an oxide other than silicon oxides as its main component. The glass composition emits fluorescence in an infrared wavelength region through irradiation of excitation light, with bismuth contained in the bismuth oxide functioning as a fluorescent source. A preferable glass network former is B2O3 or P2O5. This glass composition further may contain a univalent or divalent metal oxide.

Abstract: The present invention provides a glass composition that exhibits a fluorescence function and an optical amplification function in a wide wavelength range. This glass composition includes a bismuth oxide, a silicon oxide, an aluminum oxide, and a divalent metal oxide, and the glass composition emits fluorescence in an infrared wavelength region through irradiation of excitation light, with bismuth contained in the bismuth oxide functioning as a fluorescent source.

Abstract: A glass panel (P) including a pair of glass sheets (1A), (1B) disposed in a spaced relationship with each other with forming a gap (V) therebetween, characterized in that peripheral edges of the glass sheets (1A), (1B) are bonded directly by a single metal material (3) for sealing the gap (V) hermetically.

Abstract: The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B2O3, and a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0. As the univalent metal ions are suitable Li, Na, K, Cs, Ag, Cu, and Au.

Abstract: To maintain high bonding performance between two glass sheets by metal material, thereby to obtain high gas tightness and bonding strength. A glass panel includes a pair of glass sheets (1A, 1B) disposed in opposition to each other with forming a gap (V) therebetween, the peripheral edges of the opposed glass sheets (1A, 1B) being directly bonded to each other by metal material (5); wherein bonding faces (1Aa) in the opposed surfaces of the glass sheets (1A, 1B) to be bonded to the metal material (5) are worked so as to obtain an average surface roughness below 30 nm.

Abstract: To improve the inserting step of inserting a guide member into a gap between glass sheets so that the step may proceed smoothly without collision between the guide member and the glass sheets.

Abstract: To maintain high bonding performance between two glass sheets by metal material, thereby to obtain high gas tightness and bonding strength. A glass panel includes a pair of glass sheets (1A, 1B) disposed in opposition to each other with forming a gap (V) therebetween, the peripheral edges of the opposed glass sheets (1A, 1B) being directly bonded to each other by metal material (5); wherein bonding faces (1Aa) in the opposed surfaces of the glass sheets (1A, 1B) to be bonded to the metal material (5) are worked so as to obtain an average surface roughness below 30 nm.

Abstract: A method of bonding respective objects made of different kinds of material to each other is disclosed. The method includes the steps of (A) contacting a bonding material in the fluid state thereof with respective bonding faces of the respective objects to be bonded, (B) mechanically abrading portions of the respective bonding faces contacting the bonding material to be bonded to each other, (C) setting the respective objects fixed in a predetermined position relative to each other while maintaining the respective objects in contact with the bonding material in the fluid state thereof, and (D) solidifying the bonding material to bond the respective objects to each other. In the respective steps (A)-(D), the bonding material is present at the bonding portions to be bonded to each other of the respective objects constantly and without discontinuities.

Abstract: Lead-free solder comprising Sn, Zn and 0.001 to 0.005 wt. % Ti. The lead-free solder does not contain toxic lead, and has sufficient bonding strength to oxide materials such as glass and ceramics.

Abstract: A glass panel includes a pair of glass sheets opposed to each other with a predetermined gap therebetween and having peripheral edges thereof bonded with a metal material to seal the gap air-tightly. The glass sheets are disposed relative to each other with a displacement of 2 mm or less in maximum at respective corresponding end faces thereof along the glass panel surface.

Abstract: The ultraviolet/infrared transmittance glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % B2O3; 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; and 0 to 20 wt. % total amount of Na2O and K2O, colorants including: equal to or more than 0.05 wt. % and less than 0.2 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.63 to 1.4 wt. % CeO2; 0.02 to 1.5 wt. % TiO2; 0.0005 to 0.005 wt. % CoO; and 0.0003 to 0.002 wt. % Se. FeO expressed as Fe2O3 is between 30 wt. % and 60 wt. % of T—Fe2O3.

Abstract: A method of bonding respective objects made of different kinds of material to each other is disclosed. The method includes the steps of (A) contacting a bonding material in the fluid state thereof with respective bonding faces of the respective objects to be bonded, (B) mechanically abrading portions of the respective bonding faces contacting the bonding material to be bonded to each other, (C) setting the respective objects fixed in a predetermined position relative to each other while maintaining the respective objects in contact with the bonding material in the fluid state thereof, and (D) solidifying the bonding material to bond the respective objects to each other. In the respective steps (A)-(D), the bonding material is present at the bonding portions to be bonded to each other of the respective objects constantly and without discontinuities.

Abstract: An ultraviolet and infrared radiation absorbing glass is disclosed, which has a bronze or neutral gray tint, a low ultraviolet transmission, and a low total solar energy transmission and is suitable for use as a window glass for motor vehicles or buildings. The glass comprises, in % by weight: basic glass components comprising 65 to 80% SiO2, 0 to 5% B2O3, 0 to 5% Al2O3, 0 to 10% MgO, 5 to 15% CaO, 10 to 18% Na2O, and 0 to 5% K2O, provided that the sum of MgO and CaO is 5 to 15% and the sum of Na2O and K2O is 10 to 20%; coloring components comprising 0.20 to 0.30% total iron oxide (T-Fe2O3) in terms of Fe2O3, 0.65 to 1.1% CeO2, 0.35 to 1.1% TiO2, 0.001 to 0.005% CoO, and 0.0003 to 0.0015% Se; and an additional component comprising 0.02 to 0.30% SO3, wherein 20.5 to 25% of said T-Fe2O3 is FeO in terms of Fe2O3.

Abstract: A lead-free solder alloy substantially contains Sn and Ti, and has a temperature of a liquidus line of not greater than 400° C. The lead-free solder alloy contains no toxic lead and has sufficient bonding strength to oxide materials such as glass and ceramics.

Abstract: The ultraviolet/infrared transmittance glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % B2O3; 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; and 0 to 20 wt. % total amount of Na2O and K2O, colorants including: equal to or more than 0.05 wt. % and less than 0.2 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.63 to 1.4 wt. % CeO2; 0.02 to 1.5 wt. % TiO2; 0.0005 to 0.005 wt. % CoO; and 0.0003 to 0.002 wt. % Se. FeO expressed as Fe2O3 is between 30 wt. % and 60 wt. % of T-Fe2O3.

Abstract: The present invention provides a method of partially forming oxide layers on a surface of a substrate such as a glass plate by forming an oxide layer on the surface of the substrate, partially contacting the surface of the oxide layer formed on the substrate with an inorganic compound different from the oxide, dissolving partially the layer with the inorganic compound and removing the dissolved components of the layer together with the inorganic compound, by which the oxide layers are partially formed on the surface of the substrate efficiently and surely.

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.