Abstract: A glass plate includes a main surface, and a microscopic asperity surface disposed on the main surface, the microscopic asperity surface forming peaks and valleys. When a reference plane is defined as a plane at a center, in a direction of height, of an interval of highest frequency in a histogram of height of shape data of a square region having 2 ?m per side in the microscopic asperity surface, the number of peaks that are higher than the reference plane by 20% or more of a maximum height difference in the square region is in a range between 1 or more and 300 or less.

Abstract: A nitride semiconductor ultraviolet light emitting device 1 is configured such that a nitride semiconductor ultraviolet light emitting element 10 is mounted on a base 30 by flip-chip mounting and sealed with an amorphous fluororesin whose terminal functional group is perfluoroalkyl group. The nitride semiconductor ultraviolet light emitting element 10 includes a sapphire substrate 11, a semiconductor laminated portion 12 of an AlGaN-based semiconductor laminated on a front surface of the sapphire substrate 11, an n electrode 13, a p electrode 14 and a back surface covering layer 15 which is formed on a back surface of the sapphire substrate 11 and transmits ultraviolet light.

Abstract: A glass sheet includes, as represented by mole percentage based on oxides, from 55.5 to 80% of SiO2, from 12 to 20% of Al2O3, from 8 to 25% of Na2O, 2.5% or more of P2O5, and 1% or more of an alkaline earth metal RO (RO is MgO+CaO+SrO+BaO).

Abstract: A laminated glass includes a first glass plate; a second glass plate; and an intermediate film positioned between the first glass plate and the second glass plate, and configured to be bonded to the first glass plate and the second glass plate. The laminated glass further includes an HUD (head-up display) display area used for a head-up display. In a predetermined area of at least a part of the HUD display area, a wedge angle decreases, in accordance with a direction front a lover edge of the predetermined area to an upper edge of the predetermined area, within a range of greater than or equal to 0.06 mrad and less than or equal to 1.0 mrad per 100 mm.

Abstract: Provided is a glass sheet with an antireflection film: containing a glass sheet, a first transparent high refractive index layer located on the glass sheet, a first transparent low refractive index layer located on the first transparent high refractive index layer, a second transparent high refractive index layer located on the first transparent low refractive index layer, and a second transparent low refractive index layer located on the second transparent high refractive index layer; having a haze after heating at 600° C. to 700° C. for 15 minutes being 0.4% or less; and having a visible light reflectance measured from the side of the second transparent low refractive index layer based on JIS R 3106 being 1.0% or less.

Abstract: Provided is a printing plate, containing: a screen plate having an opening pattern; and, a frame body to which the screen plate is fixed, in which the screen plate includes at least one curved part and is relatively movably fixed to the frame body.

Abstract: A laminated glass includes, in the following order, a first glass plate, a first transparent adhesive layer, a transparent heat-insulating layer having interconnected pores, a second transparent adhesive layer, and a second glass plate. The laminated glass has a value of A in the expression (1) of 7.0×105 or smaller and a value of B in the expression (2) of 35 or larger. In the expressions, D is a pore diameter (nm) of the interconnected pores of the transparent heat-insulating layer, P is a porosity of the transparent heat-insulating layer, di is a thickness (mm) of the transparent heat-insulating layer, dg is a sum (mm) of a thickness of the first glass plate and a thickness of the second glass plate, and da is a sum (mm) of a thickness of the first transparent adhesive layer and a thickness of the second transparent adhesive layer; [ Math . ? 1 ] A = D 3 ? Pd i ( 1 ) B = d g + 3.3 ? d e + 0.75 ? d i ? ( D + 260.8 0.

Abstract: The present invention relates to a curved surface screen printing apparatus performing printing on a surface to be printed of a base material having a curved surface, including: a screen plate formed with a pattern and arranged above the base material; a squeegee which is disposed above the screen plate and applies an ink to the surface to be printed of the base material through the screen plate; and a base material moving mechanism which moves the base material along a vertical plane and is capable of swinging the base material with respect to an axis orthogonal to the vertical plane.

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 72% of SiO2, 7 to 18% of Al2O3, 1% or more of B2O3, 0 to 4% of P2O5, 5 to 16% of Li2O, 0 to 7% of Na2O, 0 to 2% of K2O, 0 to 6% of MgO, 0 to 20% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(?941)+Li2O×927+Na2O×47.5+K2O×(?371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.

Abstract: There is provided an optical glass having high infrared transmittance and being useful as an on-vehicle infrared sensor and the like. An optical glass including, in expression of atomic %: Ge+Ga; 6% to 30%; S+Se+Te; 50% to 85%; and Ti; 0.001% to 0.5%, wherein a wavelength (?T10%) at a long-wavelength side end in which infrared transmittance in a glass plate of the optical glass converted to a thickness of 1 mm becomes 10% is 12 ?m or more.

Abstract: Provided is a print layer-attached plate including a plate having a first main surface and a second main surface, and a print layer provided on the first main surface, in which the first main surface at least partially includes a region formed of a recessed and projected layer having an arithmetic average surface roughness Ra of 4 nm or more and 1,000 nm or less, and the print layer is formed so as to cover at least a part of the region.

Abstract: A near-infrared cut filter has an optical multilayer provided on at least one main surface of a transparent substrate, in which the optical multilayer is formed of a high-refractive index layer having a refractive index of 2.0 or more, and a low-refractive index layer having a refractive index of 1.6 or less at a wavelength of 500 nm, and the optical multilayer has a repeating structure of (anQH, bnQL, cnQH, dnQL)^n when a QWOT at the wavelength of 500 nm of the high-refractive index layer is set to QH, and a QWOT at the wavelength of 500 nm of the low-refractive index layer is set to QL, in which an average value of the an is not less than 1.5 nor more than 2.5, and a value obtained by averaging average values of the respective bn, cn, and dn is 1.0 or less.

Abstract: To provide a working fluid for heat cycle, which has less influence over the ozone layer and has less influence over global warming, and which has favorable cycle performance. A working fluid for heat cycle, which contains trifluoroethylene and difluoroethylene, wherein the proportion of the content of difluoroethylene is less than 1.5 mass % based on the working fluid.

Abstract: A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of copper, gold, lithium, potassium, silver, zinc, tin, lead, and bismuth.

Abstract: Provided is an optical glass suitable for an imaging lens or the like used for a vehicle-mounted camera exposed to harsh environment, having a high refractive index and high strength. The optical glass has a strengthened layer at a surface layer, and a depth of the strengthened layer is 1 ?m or more from a surface of the optical glass, and a refractive index (nd) of the optical glass is 1.73 to 2.10.

Abstract: An electric connection structure (1) is provided with: a glass plate (10); a power supply part (15) formed in the glass plate (10); a terminal (20) having a base part (21) opposing the glass plate (10); and a spring member (35) formed from a conductor and disposed between the power supply part (15) and the base part (21). The power supply part (15) and the base part (21) make contact with the spring member (35), whereby the power supply part (15) and the base part (21) are electrically connected via the spring member (35).

Abstract: A negative photosensitive resin composition comprising an alkali-soluble resin or alkali-soluble monomer which has a photo-curability, a photopolymerization initiator, and an ink repellent agent which has a fluorine atom content of from 1 to 45 mass % and which is a partially hydrolyzed condensate of a hydrolyzable silane compound mixture containing a hydrolyzable silane compound having a hydrolyzable group and an organic group having a polyfluoroalkyl group which has an etheric oxygen atom; a cured resin film and partition walls formed by using the negative photosensitive resin composition; and an optical element having the partition walls located between a plurality of dots and their adjacent dots on a substrate surface.

Abstract: To provide a crosslinkable fluorinated elastomer composition which is excellent in crosslinking reactivity and of which a crosslinked product is excellent in heat resistance and chemical resistance. The crosslinkable fluorinated elastomer composition comprises a fluorinated elastomer (e.g. a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer) and an aromatic compound having at least two crosslinkable unsaturated double bonds (e.g. a compound represented by the formula (A-1)), and the crosslinked product is one obtained by crosslinking the crosslinkable fluorinated elastomer composition.

Abstract: A glass sheet for pigment printing contains, as represented by mass percentage on the basis of oxides, from 60% to 75% of SiO2, from 2% to 12% of Al2O3, from 2% to 11% of MgO, from 0% to 10% of CaO, from 0% to 3% of SrO, from 0% to 3% of BaO, from 10% to 18% of Na2O, from 0% to 8% of K2O, and from 0% to 4% of ZrO2, or contains, from 60% to 75% of SiO2, from 1.5% to 12% of Al2O3, from 6% to 12% of MgO, from 0% to 4.5% of CaO, from 0% to 3% of SrO, from 0% to 3% of BaO, from 10% to 18% of Na2O, from 0% to 8% of K2O, and from 0% to 4% of ZrO2.

Abstract: Provided is an optical glass suitable for an imaging lens or the like used for a vehicle-mounted camera exposed to harsh environment, having a high refractive index and high strength, excellent crack resistance, and a sufficiently low glass transition point and devitrification temperature. In the optical glass, nd is 1.70 or more and 2.10 or less, Tg is 500° C. or more and 630° C. or less, the devitrification temperature is 1300° C. or less, a specific gravity is 4.0 g/cm3 or less, a crack initiation load (CIL) is 20 gf or more, and a fracture toughness value (Kc) is 0.60 MPa·m1/2 or more.