Abstract: A mask-integrated surface protective tape, which has at least a substrate film and a mask material layer, wherein the mask material layer is provided directly on the substrate film, or is provided on the substrate film through a temporary-adhesive layer, and wherein a parallel ray transmittance of the mask material layer at a wavelength region of 355 nm is 30% or less; and a method of producing a semiconductor chip.

Abstract: Alkali-doped and alkali-free boroaluminosilicate glasses that include barium oxide and the network formers SiO2, B2O3, and Al2O3. The glasses may be doped with up to about 1 mol % of Li2O, Na2O, and/or K2O. The glass may, in some embodiments, have a Young's modulus of less than about 61 GPa and/or a coefficient of thermal expansion, averaged over a temperature range from about 20° C. to about 300° C., of less than about 40×10?7/° C. These glasses may be used as a cover glass for electronic devices, a color filter substrate, a thin film transistor substrate, or an outer clad layer for a glass laminate.

Abstract: In embodiments, a delamination resistant glass pharmaceutical package includes a glass body formed from a Type 1 Class glass composition according to ASTM Standard E438-92, the glass body having a wall portion with an inner surface and an outer surface. The glass body may have at least a class A2 base resistance or better according to ISO 695, at least a type HGB2 hydrolytic resistance or better according to ISO 719 and Type 1 chemical durability according to USP <660>. An interior region of the glass body may extend from about 10 nm below the inner surface and have a persistent layer homogeneity. The glass body may also have a surface region extending over the inner surface and having a persistent surface homogeneity such that the glass body is resistant to delamination.

Abstract: Provided is a microtomic system and process for the preparation of sections for microscope examination. A cutting edge in the system can cut through a sample block and produce a section one end of which remains attached to the cutting edge. A voltage generator can generate a voltage and apply the voltage between the cutting edge and a section receiver such as a semiconductor chip grid. Through electrostatic force caused by the voltage, another end of the section can anchor to the section receiver. The section is then spread on the receiver. The system is automatable, highly efficient, and does not need liquid to float sample sections, and can therefore maintain the integration of the sample sections.

Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. According to one embodiment, the glass composition may include greater than or equal to about 68 mol. % SiO2 and less than or equal to about 80 mol. % SiO2; greater than or equal to about 3 mol. % and less than or equal to about 13 mol. % alkaline earth oxide; X mol. % Al2O3, wherein X is greater than or equal to about 4 and less than or equal to about 8; Y mol. % alkali oxide, wherein the alkali oxide comprises Na2O in an amount greater than about 8 mol %; and B2O3, wherein a ratio (B2O3 (mol. %)/(Y mol. %?X mol. %) is greater than 0 and less than 0.3. In some embodiments, the glass composition may be free of phosphorous and compounds of phosphorous.

Abstract: An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts.

Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and pharmaceutical packaging formed from the same. According to one embodiment, a glass for pharmaceutical packaging includes from about 70 mol. % to about 80 mol. % SiO2; from about 4 mol. % to about 8 mol. % alkaline earth oxide, the alkaline earth oxide comprising MgO and CaO; X mol. % Al2O3, wherein X is from about 4 to about 8; and Y mol. % alkali oxide comprising non-zero amounts of Na2O and K2O, wherein Y is about 9-15 mol. % and a ratio of Y:X is greater than 1.

Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and pharmaceutical packaging formed from the same. According to one embodiment, a glass for pharmaceutical packaging includes from about 70 mol. % to about 80 mol. % SiO2; from about 4 mol. % to about 8 mol. % alkaline earth oxide, the alkaline earth oxide comprising MgO and CaO; X mol. % Al2O3, wherein X is from about 4 to about 8; and Y mol. % alkali oxide comprising non-zero amounts of Na2O and K2O, wherein Y is about 9-15 mol. % and a ratio of Y:X is greater than 1.

Abstract: Provided is a glass composition suitable for a glass substrate for a flat panel display such as a liquid crystal display. This glass composition has high thermal stability, and is substantially free of BaO but has a low devitrification temperature. It is suitable for the production of a glass substrate by a downdraw process. This glass composition contains, in terms of mass %: 54 to 62% of SiO2; 4 to 11% of B2O3; 15 to 20% of Al2O3; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of K2O; 0 to 1% of SnO2; and 0 to 0.2% of Fe2O3, and is substantially free of BaO. In this glass composition, the total content of alkaline earth metal oxides (MgO+CaO +SrO) is 10 to 18.5 mass %. The devitrification temperature of the glass composition is 1200° C. or lower.

Abstract: A glass flake (10) having improved heat resistance and chemical resistance is formed from a glass base material satisfying, in mass %, 60?SiO2?75, 5<Al2O3?15, 3?CaO?20, 6?Na2O?20 and 9?(Li2O+Na2O+K2O)?13. When 9?(Li2O+Na2O+K2O)?13 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 5?CaO?20 and 6?Na2O?13, respectively. When 13?(Li2O+Na2O+K2O)?20 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 3?CaO?15 and 9?Na2O?20, respectively. The working temperature of the glass base material is preferably 1180° C.-1300° C. The temperature difference AT obtained by taking the devitrification temperature of the glass base material from the working temperature of the glass base material is preferably 0° C.-200° C. The glass transition temperature of the glass base material is preferably 550° C.-700° C. The acid resistance index ?W of the glass base material is preferably 0.05-1.5 mass %.

Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 60?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 4<(Li2O+Na2O+K2O)<9. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0-200° C. The glass transition temperature of the glass base material is preferably within the range of 560-750° C. It is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material, is within the range of 0.05-1.2 mass %.

Abstract: A soda lime silica glass having a colorant portion falling within one of the following combinations of ranges: Oxide Composition Fe2O3 2.1-4.0 weight % 2.1-4.0 weight % Co3O4 0-1000 ppm 200-800 ppm NiO 10-1000 ppm 50-800 ppm Se 0-100 ppm 10-70 ppm Fe2O3 2.3-3.8 weight % 2.1-4.0 weight % Co3O4 0-1000 ppm 0-1000 ppm NiO 10-1000 ppm 10-1000 ppm Se 0-100 ppm 50-100 ppm. The glass has low solar heat transmittance and low visible light transmittance. It may be used as a solar control glass or a privacy glass, and is particularly suitable for rooflights, i.e. sunroofs and roof windows, for vehicles. The glass may be manufactured by the float glass process.

Abstract: A tempered glass of the present invention includes, as a glass composition, in terms of mass %, 45 to 75% of SiO2, 0 to 30% of Al2O3, and 0 to 30% of Li2O+Na2O+K2O and has a ?-OH value of 0.3 to 1/mm.

Abstract: The present disclosure is directed to a doped silica-titania glass, DST glass, consisting essentially of 0.1 wt. % to 5 wt. % halogen, 50 ppm-wt. to 6 wt. % one or more oxides of Al, Ta and Nb, 3 wt. % to 10 wt. % TiO2 and the remainder SiO2. In an embodiment the halogen content can be in the range of 0.2 wt. % to 3 wt. % along with 50 ppm-wt. to 6 wt. % one or more oxides of Al, Ta and Nb, 3 wt. % to 10 wt. % TiO2 and the remainder SiO2. In an embodiment the DST glass has an OH concentration of less than 100 ppm. In another embodiment the OH concentration is less than 50 ppm. The DST glass has a fictive temperature Tf of less than 875° C. In an embodiment Tf is less than 825° C. In another embodiment Tf is less than 775° C.

Abstract: Glass for chemical strengthening, comprising 0.001% to 5% of Se in terms of molar percentage as a coloring component in the glass, wherein the glass has a property configured to provide an absolute value of ?a*m with 1.8 or less, the absolute value of ?a*m being a difference ?a*m between a value of chromaticity a* of reflected light by a D65 light source and a value of chromaticity a* of reflected light by an F2 light source, in a L*a*b* color system, the difference being expressed by the following expression (1), ?a*m=a*value(D65 light source)?a*value(F2 light source) ??(1).

Abstract: Disclosed are alkali-free glasses having a liquidus viscosity of greater than or equal to about 90,000 poises, said glass comprising SiO2, Al2O3, B2O3, MgO, CaO, and SrO such that, in mole percent on an oxide basis: 64?SiO2?68.2; 11?Al2O3?13.5; 5?B2O3?9; 2?MgO?9; 3?CaO?9; and 1?SrO?5. The glasses can be used to make a display glass substrates, such as thin film transistor (TFT) display glass substrates for use in active matrix liquid crystal display devices (AMLCDs) and other flat panel display devices.

Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.

Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature. The glasses comprise in mol percent on an oxide basis: 70-74.5 SiO2, 10.5-13.5 AL2O3, 0-2.5 B2O3, 3-7 MgO, 3-7 CaO, 0-4 SrO, 1.5-6 BaO, 0-0.3 SnO2, 0-03 CeO2, 0-0.5 As2O3, 0-0.5 Sb2O3, 0.01-0.08 Fe2O3 and F+Cl+BrRO/Al2O31.7 and 0.2MgO/RO0.45, RO being the sum of MgO, BaO, SrO and CaO.

Abstract: Provided is a glass composition suitable for a glass substrate for a flat panel display such as a liquid crystal display. This glass composition has high thermal stability, and is substantially free of BaO but has a low devitrification temperature. It is suitable for the production of a glass substrate by a downdraw process. This glass composition contains, in terms of mass %; 54 to 62% of SiO2; 4 to 11% of B2O3; 15 to 20% of Al2O3; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of K2O; 0 to 1% of SnO2; and 0 to 0.2% of Fe2O3, and is substantially free of BaO. In this glass composition, the total content of alkaline earth metal oxides (MgO+CaO+SrO) is 10 to 18.5 mass %. The devitrification temperature of the glass composition is 1200° C. or lower.

Abstract: An object of the present invention is to provide a Li2O—Al2O3—SiO2 based crystallized glass with excellent bubble quality even without using As2O3 or Sb2O3 as a fining agent and a method for producing the same. The Li2O—Al2O3—SiO2 based crystallized glass of the present invention is a Li2O—Al2O3—SiO2 based crystallized glass which does not substantially comprise As2O3 and Sb2O3 and comprises at least one of Cl, CeO2 and SnO2, and has a S content of not more than 10 ppm in terms of SO3.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition comprises, in terms of mass %; 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0.001-0.5% Li2O; 0.01-0.5% Na2O; 0.002-0.5% K2O; and 0-1.0%, excluding 0%, Cl.

Abstract: The invention relates to red-dyed glass, comprising the components of a base glass, coloring additives, reductants, and stabilizers, wherein the coloring additives comprise copper oxides and neodymium oxides and wherein the reductants comprise tin oxides and wherein the stabilizers comprise antimony oxides, wherein the fraction of the copper oxides in the red-dyed glass is between 0.02 and 0.08 weight percent.

Abstract: The invention relates to a furnace for the continuous melting of a composition comprising silica, the said furnace comprising at least two tanks in series, said tanks each comprising at least one burner submerged in the melt. The invention also relates to the process for manufacturing compositions comprising silica using the furnace, the silica and the fluxing agent for the silica being introduced into the first tank. The invention makes it possible to produce glass color frits, tile frits and enamel with a high productivity, low temperatures and short transition times.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition contains, in terms of mass %: 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0-0.5% Li2O; 0-1.0% Na2O; 0-1.5% K2O; and 0-1.5%, excluding 0%, Cl, Li2O+Na2O+K2O exceeding 0.06%. The glass composition can be produced suitably using, for example, a chloride as part of the raw glass materials.

Abstract: Disclosed are CuX-containing, Nd2O3-containing, UV-absorbing and contrast-enhancing glasses and article comprising the same. The glass has improved UV-absorption and color enhancing capabilities compared to glasses described in the prior art. The glass can be used in sunglass lenses and light filters of information displays.

Abstract: A mixed quartz powder contains quartz powder and two or more types of doping element in an amount of from 0.1 to 20 mass %. The aforementioned doped elements include a first dope element selected from the group consisting of N, C and F, and a second dope element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, the lanthanides and the actinides. The “quartz powder” is a powder of crystalline quartz or it is a powder of glassy SiO2 particles. It is made form natural occurring quartz or it is fabricated synthetically. The “quartz powder” may be doped. The compounding ratio of the total amount (M1) of the aforementioned first elements and the total amount (M2) of the aforementioned second elements as the ratio of the number of atoms (M1)/(M2) is preferably from 0.1 to 20. Al as well as the aforementioned doped elements is preferably included in a mixed quartz powder of this invention.

Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.

Abstract: To Provide a polarizing glass with better weatherability than conventional polarizing glasses, affording high long-term reliability without the above-described surface deterioration. To provide an optical isolator employing polarizing glass of improved weatherability, affording good weatherability and high reliability for extended periods. A polarizing glass comprising geometrically anisotropic particles dispersed in an oriented manner in at least one surface layer of a glass base body. The glass base body does not comprise an oxide of alkali earth metal and PbO, and consists of borosilicate glass comprising at least one additive component selected from the group consisting of Y2O3, ZrO2, La2O3, Ce O2, Ce2O3, Ti O2, V2O5, Ta2O5, WO3, and Nb2O5, and the geometrically anisotropic metal particles are metallic cupper particles. An optical isolator employing the polarizing glass.

Abstract: For providing glasses and glass-ceramics having properties suitable for use as a substrate of an information storage medium of next generation such as one for the perpendicular magnetic recording system without employing arsenic and antimony components which adversely affect human beings and the environment, there are provided glass-ceramics comprising SiO2, Li2O and Al2O3 on oxide basis, comprising lithium disilicate as a crystal phase, and comprising one or more elements selected from the group consisting of Sn, Ce, Mn, W, Ta, Bi, Nb, S, Cl and F.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition comprises, in terms of mass %; 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0.001-0.5% Li2O; 0.01-0.5% Na2O; 0.002-0.5% K2O; and 0-1.

Abstract: The present invention provides a TiO2—SiO2 glass whose coefficient of linear thermal expansion upon irradiation with high EUV energy light is substantially zero, which is suitable as an optical member of an exposure tool for EUVL. The present invention relates to a TiO2-containing silica glass having a halogen content of 100 ppm or more; a fictive temperature of 1,100° C. or lower; an average coefficient of linear thermal expansion in the range of from 20 to 100° C. of 30 ppb/° C. or lower; a temperature width ?T, in which a coefficient of linear thermal expansion is 0±5 ppb/° C., of 5° C. or greater; and a temperature, at which a coefficient of linear thermal expansion is 0 ppb/° C., falling within the range of from 30 to 150° C.

Abstract: The present invention is to provide a TiO2—SiO2 glass having suitable thermal expansion properties as an optical member of an exposure tool for EUVL. The present invention relates to a TiO2-containing silica glass having a temperature, at which a coefficient of thermal expansion is 0 ppb/° C., falling within the range of 23±4° C. and a temperature width, in which a coefficient of thermal expansion is 0±5 ppb/° C., of 5° C. or more.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition comprises, in terms of mass %: 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0.001-0.5% Li2O; 0.01-0.5% Na2O; 0.002-0.5% K2O; and 0-1.0%, excluding 0%, Cl.

Abstract: The present invention provides a blue-violet light blocking glass containing copper (I) halide fine particles that satisfactorily transmits light having a wavelength of 450 nm to 600 nm and sharply blocks light having a wavelength shorter than 450 nm. Specifically, the present invention provides a blue-violet light blocking glass containing a copper (I) halide and silver; for example, 20 to 85% by weight of SiO2; 2 to 75% by weight of B2O3; not more than 10% by weight of Al2O3; 2 to 30% by weight of at least one member selected from the group consisting of Li2O, Na2O, K2O, Rb2O and Cs2O; 1 to 15% by weight of at least one member selected from the group consisting of MgO, CaO, SrO, BaO and ZnO; not more than 10% by weight of at least one member selected from the group consisting of PbO, Nb2O5, ZrO2, La2O3, Y2O3, Ta2O3 and Gd2O3; not more than 5% by weight of at least one member selected from the group consisting of Sb2O3 and As2O3; not more than 5% by weight of SnO2; 0.

Abstract: A glass substrate for information recording medium, said glass substrate being composed of an aluminosilicate glass containing 60-75% by mass of SiO2, 5-18% by mass of Al2O3, 3-10% by mass of Li2O, 3-15% by mass of Na2O and 0.5-8% by mass of ZrO2 relative to the entire glass components. The glass substrate for information recording medium contains neither As (arsenic) nor Sb (antimony), while containing at least one substance selected from the group consisting of SO3 (sulfurous acid), F (fluorine), Cl (chlorine), Br (bromine) and I (iodine), as a refining agent. The molar ratio of the total amount of the refining agent to the amount of Al2O3 is within the range of 0.02-0.20.

Abstract: A glass substrate for information recording medium, said glass substrate being composed of an alminosilicate glass containing 60-75% by mass of SiO2, 5-18% by mass of Al2O3, 3-10% by mass of Li2O, 3-15% by mass of Na2O and 0.5-8% by mass of ZrO2 relative to the entire glass components. The glass substrate for information recording medium contains neither As (arsenic) nor Sb (antimony), while containing at least one substance selected from the group consisting of SO3 (sulfurous acid), F (fluorine), Cl (chlorine), Br (bromine) and I (iodine), as a refining agent. The molar ratio of the total amount of the refining agent to the amount of ZrO2 is within the range of 0.05-0.50.

Abstract: The invention discloses boron-free neutral glasses having the composition (in % by weight, based on oxide) 65-72 SiO2, 11-17 Al2O3, 0.1-8 Na2O, 3-8 MgO, 4-12 CaO and 0-10 ZnO, a ratio CaO/MgO of 1.4 to 1.6, and having a hydrolytic resistance in accordance with DIN ISO 719 in class 1 and an acid resistance in accordance with DIN 12116 and an alkali resistance in accordance with DIN ISO 695 at least in class 2.

Abstract: The glass composition of the present invention includes the following components, expressed in mass %: 70% to 88% of SiO2; 6% to 18% of B2O3; 0.5% to 4.5% of Al2O3; 0% to 0.5% of Li2O; 0% to 0.5% of Na2O; 2% to 10% of K2O; and 0% to 2% of MgO+CaO+SrO+BaO, and the glass composition further includes chlorine (Cl). The glass composition of the present invention is used suitably as a glass substrate for an information display device.

Abstract: The present invention is to provide a neutral gray colored glass composition that has a soda-lime-silica glass base composition containing as major colorants 0.30 to 0.70% by weight Fe2O3; 0 to 30 ppm of Co3O4; 1 to 20 ppm of Se; and 20 to 200 ppm of CuO. The glass provides an illuminant “A” light transmission greater of 65%, a total solar energy transmittance of less than or equal to 60%, a solar ultraviolet transmittance of less than 46%; a dominant wavelength from 490 nm to 600; and an excitation purity of less than 6.

Abstract: The X-ray opaque glass is characterized by a composition, in mol %, of SiO2, 75-98; Yb2O3, 0.1 to 40; and ZrO2, 0 to 40. Preferred embodiments of the glass are free of Al2O3 and B2O3. The glass is produced from the glass batch by melting at a temperature of at least 1500° C. in an iridium or iridium alloy vessel with the assistance of high-frequency radiation. In preferred embodiments of the glass production process at least one raw material ingredient is present in the batch as a nanoscale powder. The glass is useful in dental applications, optical applications, and biomedical applications, or for photovoltaics, or as a target material in PVD processes.

Abstract: A known SiO2 slurry for the production of quartz glass contains a dispersion liquid and amorphous SiO2 particles with particle sizes to a maximum of 500 ?m, wherein the largest volume fraction is composed of SiO2 particles with particle sizes in the range 1 ?m-60 ?m, as well as SiO2 nanoparticles with particle sizes less than 100 nm in the range 0.2-15% volume by weight (of the entire solids content). In order to prepare such a slurry for use, and to optimize the flow behavior of such a slurry with regard to later processing by dressing or pouring the slurry mass, and with regard to later drying and sintering without cracks, the invention suggests a slurry with SiO2 particles with a multimodal distribution of particle sizes, with a first maximum of the sizes distribution in the range 1 ?m-3 ?m and a second maximum in the range 5 ?m-50 ?m, and a solids content (percentage by weight of the SiO2 particles and the SiO2 nanoparticles together) in the range 83%-90%.

Abstract: The invention is directed to a glass composition and articles made from the composition that are both polarizing and photorefractive. The glass has, for example, a composition consisting essentially of, in weight percent (“wt. %”) of 70-73 SiO2, 13-17% B2O3, 8-10% Na2O, 2-4% Al2O3, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. In another embodiment the composition consists essentially of 70-77% SiO2, 13-18% B2O3, 8-10% Na2O, 2-4% Al2O3, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. The glass can be used make articles or elements that can exhibits both the photorefractive effect and the polarizing effect within a single element or article, and can be used to make a variety of optical elements including Bragg gratings, filtering elements, and beam shaping elements and light collection elements for use in display, security, defense, metrology, imaging and communications applications.

Abstract: The invention is directed to a glass composition and articles made from the composition that are both polarizing and photorefractive. The glass has a composition consisting essentially of, in weight percent (“wt. %”) of 70-73 SiO2, 13-17% B2O3, 8-10% Na2O, 2-4% Al2O3, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. The glass can be used make articles or elements that can exhibits both the photorefractive effect and the polarizing effect within a single element or article, and can be used to make a variety of optical elements including Bragg gratings, filtering elements, and beam shaping elements and light collection elements for use in display, security, defense, metrology, imaging and communications applications.

Abstract: The invention is directed to a glass composition and articles made from the composition that are both polarizing and photorefractive. The glass has, for example, a composition consisting essentially of, in weight percent (“wt. %”) of 70-73 SiO2, 13-17% B2O3, 8-10% Na2O, 2-4% Al2O3, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. In another embodiment the composition consists essentially of 70-77% SiO2, 13-18% B2O3, 8-10% Na2O, 2-4% Al2O3, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. The glass can be used make articles or elements that can exhibits both the photorefractive effect and the polarizing effect within a single element or article, and can be used to make a variety of optical elements including Bragg gratings, filtering elements, and beam shaping elements and light collection elements for use in display, security, defense, metrology, imaging and communications applications.

Abstract: A technique of manufacturing glass having fairly clear color and/or high visible transmission is provided. In certain example embodiments of this invention, it has surprisingly been found that by using carbon-containing compound(s) including CxHyOz.mH2O, excellent melting and refining can be achieved in the manufacture of glass, and not as much ferrous iron is formed compared to the use of elemental carbon as a refining agent. Such compound(s) are especially advantageous when highly transparent clear glass is desired, in that less ferrous iron is formed and thus transmittance and coloration can be improved.

Abstract: The present invention provides a blue-violet light blocking glass containing copper (I) halide fine particles that satisfactorily transmits light having a wavelength of 450 nm to 600 nm and sharply blocks light having a wavelength shorter than 450 nm. Specifically, the present invention provides a blue-violet light blocking glass containing a copper (I) halide and silver; for example, 20 to 85% by weight of SiO2; 2 to 75% by weight of B2O3; not more than 10% by weight of Al2O3; 2 to 30% by weight of at least one member selected from the group consisting of Li2O, Na2O, K2O, Rb2O and Cs2O; 1 to 15% by weight of at least one member selected from the group consisting of MgO, CaO, SrO, BaO and ZnO; not more than 10% by weight of at least one member selected from the group consisting of PbO, Nb2O5, ZrO2, La2O3, Y2O3, Ta2O3 and Gd2O3; not more than 5% by weight of at least one member selected from the group consisting of Sb2O3 and As2O3; not more than 5% by weight of SnO2; 0.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition comprises, in terms of mass %: 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0.001-0.5% Li2O; 0.01-0.5% Na2O; 0.002-0.5% K2O; and 0-1.

Abstract: A silica glass containing TiO2, which has a fictive temperature of at most 1,200° C., a F concentration of at least 100 ppm and a coefficient of thermal expansion of 0±200 ppb/° C. from 0 to 100° C. A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body, a step of obtaining a fluorine-containing formed glass body and a step of carrying out annealing treatment.

Abstract: A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition contains, in terms of mass %: 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0-0.5% Li2O; 0-1.0% Na2O; 0-1.5% K2O; and 0-1.5%, excluding 0%, Cl, Li2O+Na2O+K2O exceeding 0.06%. The glass composition can be produced suitably using, for example, a chloride as part of the raw glass materials.

Abstract: The invention relates to aluminoborosilicate glasses as a glass casing body of a lighting means, especially for background illumination, which glass composition is equally suitable for use in lighting means with external contacting as well as for lighting means with internal contacting.