| Patent Number |
Title Of Patent |
Date Issued |
| 6773635 |
UV-sensitive material |
August 10, 2004 |
| Materials, both glass and glass-ceramic, that exhibit UV-induced changes in light transmission and electrical conductivity behavior. The materials consist essentially, in mole %, of 20-40% SiO.sub.2, 10-20% AlO.sub.1.5, 35-55% SiO.sub.2 +AlO.sub.1.5, at least 30% CdF.sub.2, 0-20% PbF.sub |
| 6366075 |
Fiber optic, current measuring devices and method |
April 2, 2002 |
| The present invention relates to a device for measuring a current in a magnetic field which includes a glass article wherein the glass may be an oxyfluoride glass or a bismuth oxide glass having a photoelastic coefficient of from about -0.2 to 0.2 at 546 nm. Further, the present inve |
| 6320366 |
Method of measuring a large current using a glass fiber current sensor |
November 20, 2001 |
| A method of determining the magnitude of an exceptionally large current which comprises measuring the angle of rotation of polarized light in a magnetic field created by the current with a glass fiber sensor composed of a fluoride glass having a low Verdet constant and a photoelastic |
| 6284685 |
Light-induced refractive index changes in low temperature glasses |
September 4, 2001 |
| Devices are made comprising a tin-phosphorous oxyfluoride glass, which has been exposed to light, preferably shorter in wavelength than the absorption edge of the glass, to change the refractive index change of the glass. The glasses can be used to form planar and fiber devices, includin |
| 6281151 |
Transparent lanthanum fluoride glass-ceramics |
August 28, 2001 |
| The present invention relates to a transparent glass-ceramic material which includes a glass matrix and a crystalline phase of lanthanum fluoride crystals in the glass matrix, where the transparent glass-ceramic material contains no silica. The present invention further relates to a meth |
| 5609660 |
Method of reducing water sensitivity of phosphate glass particles |
March 11, 1997 |
| Polymeric compositions having a polymeric component and an inorganic filler which undergoes a crystal (phase) inversion within the operating temperature range of the composition are provided. The present invention relates to a method for reducing the water sensitivity of particles of a |
| 5552092 |
Waveguide coupler |
September 3, 1996 |
| The present invention relates to a method for packaging an optical waveguide coupler where the coupler includes a body having two end portions and a constricted portion located between the end portions. The method includes placing the coupler in a mold where the mold surrounds at lea |
| 5537505 |
Transparent glass-ceramics |
July 16, 1996 |
| The present invention is directed to the preparation of two groups of transparent glass-ceramics exhibiting high optical clarity and containing essentially only one crystal phase. The first group consists essentially, in cation percent, ofand the second group consists essentially, in cat |
| 5483628 |
Transparent glass-ceramics |
January 9, 1996 |
| The present invention is directed to the preparation of two groups of transparent glass-ceramics exhibiting high optical clarity and containing essentially only one crystal phase. The first group consists essentially, in cation percent, ofand the second group consists essentially, in cat |
| 5278107 |
Optical parts and equipment using infrared athermal glasses |
January 11, 1994 |
| Optical parts and optical equipment, including lenses, mirrors and laser media made of athermal glasses having compositions comprising 0-13 mol % CdO, 9-24 mol % CdF.sub.2, 5-10 mol % LiF, 30-34.5 mol % AlF.sub.3 28-33.5 mol % PbF.sub.2, 0-4 mol % KF, 0-6.5 mol % YF.sub.3, and 0-2 mol % |
| 5108477 |
Method for making a glass article |
April 28, 1992 |
| A method for foming glass articles of substantial thickness from unstable glass compositions which normally devitrify when formed by conventional casting or molding processes, is disclosed. The method includes the steps of quench-cooling the glass to form a crystal-free glass feedstock |
| 5106400 |
Casting core/clad glass preforms method and apparatus |
April 21, 1992 |
| Disclosed is a method of forming a glass preform from core and cladding glasses having low liquidus viscosities and narrow working ranges. A tube of liquid core glass is vertically situated in a vessel of liquid cladding glass. The tube extends to the bottom of the vessel where there is |
| 5100449 |
Method of forming glass articles |
March 31, 1992 |
| Disclosed is a method and apparatus for drawing an elongated glass article such as a fiber optic device. The article is drawn upwardly from a source through the surface of a quantity of molten metal having a vertical temperature gradient. The source can be an elongated solid glass prefor |
| 5089446 |
Sealing materials and glasses |
February 18, 1992 |
| Mill additions are disclosed which lower the CTE of, and are compatible with, tin-phosphorus oxyfluoride glasses. The sealing materials provide fusion-type seals having a CTE not over about 110.times.10.sup.-7 /.degree.C. and a sealing temperature not over about 350.degree. C.Also disclo |
| 4969710 |
Optical fiber transmission path with dispersion compensation |
November 13, 1990 |
| An optical fiber transmission path wherein total dispersion of the system is compensated by use of fibers composed of glasses with total dispersion of opposite signs at the operating wavelength for the system. With silica-based fibers, CdF.sub.2 --LiF--AlF.sub.3 --PbF.sub.2 --KF--YF.sub. |
| 4752593 |
Stabilized CdF.sub.2 -PbF.sub.2 -AlF.sub.3 -alkali fluoride glasses |
June 21, 1988 |
| Metal halide glasses of CdF.sub.2 -LiF-AlF.sub.3 -PbF.sub.2 composition but comprising KF and one or more of LaF.sub.3 and YF.sub.3 as stabilizers, and also including a minor amount of oxygen as a further stabilizer, exhibit excellent glass stability and low hydroxyl content as evidenced |
| 4668641 |
Optical elements made from ThF.sub.4 --BeF.sub.2 glasses |
May 26, 1987 |
| ThF.sub.4 --BeF.sub.2 glasses of specified composition exhibit sufficiently low high-temperature viscosity and melt stability to be useful for the fabrication of optical devices for ultraviolet or infrared light transmission. The low melt viscosity renders the glasses suitable as host |
| 4537864 |
Metal fluoride glasses in the CdF.sub.2 -PbF.sub.2 -AlF.sub.3 -(LiF) system |
August 27, 1985 |
| Novel halide glass-forming compositions in the CdF.sub.2 -AlF.sub.3 -PbF.sub.2 and CdF.sub.2 -AlF.sub.3 -PbF.sub.2 -LiF composition fields are disclosed which exhibit unusual glass stability. The constituents of these glasses are potentially vapor transportable, so that very pure glass |
| 4426430 |
Inorganic NbF.sub.5 (TaF.sub.5)-P.sub.2 O.sub.5 electrolytes |
January 17, 1984 |
| Compositions in the NbF.sub.5 (TaF.sub.5)-P.sub.2 O.sub.5 system which are liquid at room temperature and exhibit relatively high ionic conductivities, useful for example, as electrolytes in batteries or other electrochemical cells, are described. |
| 4420569 |
Alkali metal zirconofluorophosphate glasses |
December 13, 1983 |
| This invention is directed to the production of glasses within the Li.sub.2 O-K.sub.2 O-ZrO.sub.2 -F-P.sub.2 O.sub.5 system having batch compositions as generally depicted in terms of mole percent in FIG. 2. |
| 4405724 |
Mercury thallium fluorophosphate glasses |
September 20, 1983 |
| Mercury thallium fluorophosphate glasses are disclosed that have very low transition temperatures, very high refractive indices and dielectric constants, and are resistant to moisture attack. The glasses are free of alkali metals and substitute thallium chloride in the glass batch as a |
| 4405672 |
Composite photochromic glass article and method of making |
September 20, 1983 |
| There is disclosed a composite photochromic glass article composed of a glass core and a thin surface layer substantially encasing that core, the core preferably containing a copper-cadmium halide photochromic crystal system and the substantially encasing glass layer preferably containin |
| 4379070 |
Tin-phosphorus oxyfluoride glass containing aromatic organic compound |
April 5, 1983 |
| A tin-phosphorous oxyfluoride glass in the Sn--P--O--F composition field is used as a supporting matrix for light-responsive polycyclic aromatic hydrocarbons, such as triplet state or lasing dyes. Dye compatibility with the glass is good, as evidenced by the fact that glasses containing |
| 4362819 |
Moldable fluoroaluminophosphate glasses |
December 7, 1982 |
| The present invention is directed to the production of essentially dry alkali metal (R.sup.1) aluminofluorophosphate glasses optionally containing at least one divalent metal (R.sup.2) which exhibits a transition temperature below about 350.degree. C., good chemical durability, resis |
| 4323654 |
Moldable glass compositions |
April 6, 1982 |
| Alkali-Ta.sub.2 O.sub.5 -B.sub.2 O.sub.3 -P.sub.2 O.sub.5 glass compositions suitable for providing molded optical elements or the like, exhibiting glass transition temperatures below 500.degree. C., refractive index values (n.sub.d) above 1.523, and acceptable water durability are d |
| 4314031 |
Tin-phosphorus oxyfluoride glasses |
February 2, 1982 |
| Glass compositions in the tin-phosphorus-oxyfluoride composition system exhibiting very low glass transition temperatures and capable of being modified by the addition of selected constituents to exhibit excellent stability in a humid environment, are described. |
| 4285730 |
Moldable glasses |
August 25, 1981 |
| The instant invention is concerned with the production of glasses which are capable of being molded or otherwise shaped under pressure at temperatures not exceeding about 450.degree. C. Such glasses consist essentially, in mole percent as analyzed on the oxide basis, of at least 20% but |
| 4226628 |
Cuprous copper and/or silver halophosphate glasses |
October 7, 1980 |
| This invention is related to the production of glasses having compositions within the copper and/or silver-halide-phosphate field, wherein at least one halide is present selected from the group of fluoride, chloride, bromide, and iodide, such glasses exhibiting softening points below abo |
| 4168339 |
Photochromic microsheet |
September 18, 1979 |
| This invention is directed to the production of photochromic glass microsheet which is particularly useful in the fabrication of transparent glass-plastic composite lenses. In such lenses, the photochromic microsheet will either be buried within the plastic or will act as a surface l |
| 4166745 |
Refractive index-corrected copper-cadmium halide photochromic glasses |
September 4, 1979 |
| Alkali boroaluminosilicate glass compositions providing refractive index-corrected copper-cadmium halide photochromic glasses of optical quality, particularly useful for making ophthalmic lenses, are described. Ion-exchange-strengthenable glasses exhibiting good chemical durability a |
| 4076544 |
Copper-cadmium-silver photochromic glass |
February 28, 1978 |
| Copper, cadmium, silver and halogen-containing glass compositions suitable for the production of photochromic glass articles comprising these constituents in a separated, particulate photochromic phase are described. The glasses exhibit a characteristic copper-cadmium halide absorption |
| 3954485 |
Silver-free polarizing photochromic glasses |
May 4, 1976 |
| Silver-free photochromic glasses capable of reversibly changing from the clear nonpolarizing state to the darkened polarizing state are provided by heating a photochromic alkali boroaluminosilicate base glass containing copper and/or cadmium halides to a working temperature and elongatin |
