Abstract: This invention provides an optical glass including, by mass %: 30 to 40% of B2O3; 2.5 to 6% of Li2O; 10 to 17% of ZnO; 12 to 22% of La2O3; 15 to 25% of Gd2O3; 0 to 5% of SiO2; 0 to 5% of Bi2O3; 0 to 15% of Al2O3; 0 to 3% of ZrO2; 0 to 5% of WO3; 0 to 5% of Ta2O5; 0 to 3% of TiO2; 0 to 5% of Y2O3; and 0 to 5% of MgO+CaO+SrO+BaO.

Abstract: The invention provides an optical glass comprising, by mass % on the oxide basis; 25 to 50% of B2O3; 5 to 25% of ZnO: 13 to 25% of La2O3; 10 to 28% of Gd2O3; and 1.5 to 4% of Li2O, the optical glass having: a refractive index (nd) of 1.65 to 1.76; an Abbe number (?d) of 45 to 60; and a molding temperature (Tp), as defined with the glass transition temperature (Tg) and the yield point (At) by the expression At+(At?Tg)/2, of 650° C. or less; the optical glass substantially containing neither an arsenic nor a lead nor a fluorine.

Abstract: The present invention provides an optical glass including, by mass %: 46 to 70 of B2O3; 3 to 10 of Li2O; 5 to 15 of Y2O3; 0 to 46 of SiO2: 0 to 20 of Al2O3: 0 to 40 of MgO+CaO+SrO+BaO; 0 to 30 of La2O3; and 0 to 10 of ZrO2+TiO2+Gd2O3.

Abstract: The object of the present invention is to provide an optical glass which has optical constants such as a refractive index of from 1.45 to 1.65 and an Abbe number of at least 65 and which is yet excellent in chemical durability. A phosphate optical glass comprising, as glass components by mass %, from 73 to 85 of P2O5, from 14 to 26 of Al2O3, from 1 to 12 of K2O+Li2O, from 0 to 12 of SiO2, from 0 to 12 of B2O3, from 0 to 12 of Na2O, from 0 to 12 of Y2O3, from 0 to 12 of La2O3, from 0 to 12 of MgO+CaO+SrO+BaO, from 0 to 10 of ZrO2+TiO2+Gd2O3, from 0 to 10 of Ta2O5+GeO2+Ga2O3+Nb2O5+WO3+TeO2, from 0 to 2 of Sb2O3, and from 0 to 12 of ZnO+PbO.

Abstract: In a glass optical waveguide having a core containing at least one oxide selected from the group of glass-constituting oxides consisting of Bi2O3, Sb2O3, PbO, SnO2 and TeO2, large transmission loss of light which occurs when the cross-sectional shape of the core is rectangle, is reduced, and wherein the glass optical waveguide contains at least total 35% in mass % of at least one type of the above glass-constituting oxides, wherein the cross-sectional shape of the core is trapezoidal, among two parallel sides of the trapezoid, a long side is in a substrate side and among four sides constituting the trapezoid, angles of two oblique sides to the long side are each within a range of from 60 to 80°.

Abstract: To provide a production process capable of making the transmittance of an optical glass element obtainable by press-molding a TeO2-containing glass high. A process for producing an optical glass element, which comprises press-molding a TeO2-containing glass, wherein the press-molding is carried out in an atmosphere in which the nitrogen partial pressure is at most 102 Pa. The above process for producing an optical glass element, wherein the face of a mold for the press-molding to be in contact with the glass is made of carbon. The above process for producing an optical glass element, wherein the molded glass obtained by the press-molding is held in an oxygen-containing atmosphere at a temperature within a range of at least a temperature lower by 50° C. than the glass transition point of the TeO2-containing glass and at most the softening point of the glass.

Abstract: It is to obtain a silica glass suitable as a material for an optical material constituting an optical system to be used for EUVL, which has a low coefficient of thermal expansion from 0 to 100° C., and on which formation of concave defects is suppressed in a polishing step to achieve a high level of flatness. A silica glass containing from 0.1 to 10 mass % of Sn calculated as SnO2 and from 3 to 10 mass % of Ti calculated as TiO2, which has a homogeneity of the coefficient of thermal expansion from 0 to 100° C. to the temperature of from 50 to 200 ppb/° C., a coefficient of thermal expansion from 0 to 100° C. of 0±250 ppb/° C., and a Vickers hardness of at most 650.

Abstract: A nonlinear fiber having a third-order nonlinear coefficient of at least 30 W?1km?1, and its cladding containing Er or Tm at a portion within 3 ?m from the interface with its core. A wavelength conversion method of making a signal light having a wavelength ?S and an intensity IS and a pump light having a wavelength ?P which is shorter than 2?S and an intensity higher than IS enter a nonlinear fiber 1, and generating a converted light having a wavelength ?C of ?S?P/(2?S??P) and an intensity IC by four wave mixing, wherein Er or Tm is present in the cladding at a portion with a diameter in the nonlinear fiber 1 of at most the mode field diameter, and the converted light is generated by four wave mixing while Er or Tm is excited by an excitation light.

Abstract: To provide quartz-type glass for a microlithographic projection exposure apparatus, which contains at least 51 mass % of SiO2 and which further contains at least one member selected from the group consisting of lanthanum, aluminum, hafnium, nitrogen, scandium, yttrium and zirconium. It is a material which is useful for an illumination system for a microlithographic projection exposure apparatus or as a projection object lens and has a refractive index at 248 nm larger than 1.508 of quartz glass and a refractive index at 193 nm larger than 1.560 of quartz glass and which can be small-sized.

Abstract: A radiator 9 for electric parts use, which cools an inverter and others relating to the control of an electric motor, and a condenser 12 for condensing refrigerant are arranged in parallel with each other with respect to the direction of an air flow on an upstream side of the air flow of a radiator 8 for engine use. Due to the above arrangement, as the air temperatures at the inlets of the radiator 8 for electric parts use and the condenser 12 are low, a temperature difference between air and cooling water and a temperature difference between air and refrigerant are increased, and it becomes possible to enhance the performance of the radiator 8 for electric parts use and the condenser 12.

Abstract: Conventional TiO2—SiO2 glass contains hydrogen atoms substantially, and during deposition under ultrahigh vacuum condition, the hydrogen molecules will diffuse in the chamber, and H2 molecules will be taken into a film thereby formed. Hydrogen molecules will readily diffuse, and the optical characteristics of the multilayer film are likely to be thereby changed. In an optical material for EUV lithography, a multilayer film is coated by ion beam sputtering on a silica glass having a TiO2 concentration of from 3 to 12 mass % and a hydrogen molecule content of less than 5×1017 molecules/cm3 in the glass.

Abstract: A heat exchanger and a production method thereof are disclosed. A through hole (17) is formed in a second header member (17) of a first refrigerant header tank (14) of segmentation type. A protrusion (20a) of a first connector (20) for pipe connection is deformed by being inserted into the through hole (17b) and thus tacked by engagement. Under this condition, the first header member (16) is fitted and tacked on the second header member (17) so that the first connector (20), the second head member (17) and the first head member (16) are integrally brazed and coupled. By doing so, the first connector (20) can be properly coupled to the first refrigerant header tank (14). Further, the first connector (20) can be tacked by engagement before the first refrigerant header tank (14) assumes a cylindrical shape, and therefore the workability of tacking the first connector (20) is improved.

Abstract: In a glass optical waveguide having a core containing at least one oxide selected from the group of glass-constituting oxides consisting of Bi2O3, Sb2O3, PbO, SnO2 and TeO2, large transmission loss of light which occurs when the cross-sectional shape of the core is rectangle, is reduced. A glass optical waveguide which contains at least total 35% in mass % of at least one type of the above glass-constituting oxides, wherein the cross-sectional shape of the core is trapezoidal, among two parallel sides of the trapezoid, a long side is in a substrate side and among four sides constituting the trapezoid, angles of two oblique sides to the long side are each within a range of from 60 to 80°.

Abstract: An integrated heat exchanger has a first heat exchanger and a second heat exchanger. The first heat exchanger has a first bracket and a second bracket on header parts thereof, respectively. The first bracket and the second bracket are connected to header parts of the second heat exchanger with a first bolt and a second bolt, respectively, for integrating the first heat exchanger with the second heat exchanger. The header parts of the second heat exchanger are provided with a first bolt-receiving portion and a second bolt-receiving portions for receiving the first bolt and the second bolt therein, respectively. The first bolt-receiving portion and the second bolt-receiving portion define a first axis and a second axis, respectively. The first axis and the second axis are nonparallel to each other. Thus, the first bolt and the second bolt are disposed nonparallel to each other.

Abstract: A heat exchanger has a core including a plurality of tubes and a container disposed at an end of the core. The container has a tubular part and a cap part closing an end of the tubular part and defining a hole. The heat exchanger further has a pin for positioning. The pin extends through the hole of the cap part and to an outside of the container. The pin is bonded to the cap part with a brazing material. Further, the heat exchanger has a preliminary fixing portion by which the pin and the cap part are preliminarily fixed to each other before being bonded with the brazing material.

Abstract: A fluorescent probe having a base sequence complementary to a specific sequence in a target nucleic acid, wherein the fluorescent probe has one end labeled with a nano particle fluorescent material, and the other end labeled with a fluorescent dye capable of fluorescence resonance energy transfer from the nano particle fluorescent material.

Abstract: To provide an optical glass which has a high transmittance and a high refractive index and shows little decrease in the transmitted light intensity when continuously irradiated with a blue-violet laser diode light, and which is less prone to a higher melting temperature and exhibits chemical durability being not low. An optical glass consisting essentially of, as represented by mol %, from 35 to 54% of TeO2, from 0 to 10% of GeO2, from 5 to 30% of B2O3, from 0 to 15% of Ga2O3, from 0 to 8% of Bi2O3, from 3 to 20% of ZnO, from 0 to 10% of MgO+CaO+SrO+BaO, from 1 to 10% of Y2O3+La2O3+Gd2O3, from 0 to 5% of Ta2O5+Nb2O5, from 0 to 1.8% of TiO2, and from 0 to 6% of Li2O+Na2O+K2O+Rb2O+Cs2O. A lens made of such an optical glass.

Abstract: A nonlinear fiber having a third-order nonlinear coefficient of at least 30 W?1km?1, and its cladding containing Er or Tm at a portion within 3 ?m from the interface with its core. A wavelength conversion method of making a signal light having a wavelength ?S and an intensity IS and a pump light having a wavelength ?P which is shorter than 2?S and an intensity higher than IS enter a nonlinear fiber 1, and generating a converted light having a wavelength ?C of ?S?P/(2?S??P) and an intensity IC by four wave mixing, wherein Er or Tm is present in the cladding at a portion with a diameter in the nonlinear fiber 1 of at most the mode field diameter, and the converted light is generated by four wave mixing while Er or Tm is excited by an excitation light.

Abstract: A bracket portion and a caulking pawl portion are provided on a tank cap closing an end portion of a first refrigerant header tank of an evaporator. Brazing is carried out in a state where the pawl portion is caulked and provisionally fixed to side plates by the pawl portion. As the evaporator and a radiator for electric components are coupled through the bracket portion, the coupling distance can be reduced and a suitable fastening strength between the evaporator and the radiator for electric components can be secured.

Abstract: A harness clip includes a base portion having a leg portion for engagement with a rocker panel, a side wall portion standing on and extending from one side edge of the base portion, and a harness holding portion which is connected to the side wall portion through a hinge portion, and a lock portion for engagement with the base portion at a distal end edge portion of the harness holding portion. The distal end edge portion of the harness holding portion is formed into a substantially L-shape when viewed from an end surface thereof to provide an angular portion, and this angular portion is locked to the base portion in contacting relation to an upper surface of the base portion. Therefore, even when a load is applied to the harness clip, the harness can be stably held without canceling the engagement of the lock portion with the base portion.