Patents in Class 501/40

Matches 1 - 50 out of 201

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Match	Document	Document Title
1	7547652	Vitreous compositions of the vitroceramic type, transparent to infrared The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga<1,...
2	7498284	Glass material and method of preparing said glass A nitride glass with the general formula α x β y γ z is provided wherein α is a glass modifier comprising at least one electropositive element. β comprises Si, B, Ge, a and/or Al. γ is N or...
3	7418835	Low loss chalcogenide glass and process for making same using arsenic monochalcogenide This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass. The process includes the...
4	7330634	Chalcogenide glass for low viscosity extrusion and injection molding The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the...
5	7312168	Glass beads and uses thereof In one aspect, the invention provides glass beads and optical devices comprising the glass beads. In other aspects, the invention provides methods of making said glass beads and rapid glass...
6	7190875	Fiber waveguide formed from chalcogenide glass and polymer In general, in one aspect, the disclosure features a fiber waveguide having a waveguide axis, including a core extending along the waveguide axis and a confinement region extending along the...
7	7157390	Infrared chalcogenide glass An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10 −6 /° C.
8	7116888	Chalcogenide glass for low viscosity extrusion and injection molding The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the...
9	6967249	Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic articles produced therewith Specific photochromic 3H-naphtho[2,1-b]-pyran compounds useful with various types of synthetic resin materials to form photochromic articles, especially ophthalmic lenses, and photochromic articles...
10	6756333	Devitrification-resistant chalcogenide glasses The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of...
11	6660672	Alkali halide-doped sulfide glasses for optical amplifier and fabricating method thereof There is provided alkaloid halogen-doped sulfide glasses for an optical amplifier and a fabricating method thereof. An alkaloid halogen-doped sulfide glass is formed of silica doped with a...
12	6649326	Photolithographic method and UV transmitting fluoride crystals with minimized spatial dispersion The invention provides a UV below 200 nm lithography method. The invention includes providing a below 200 nm radiation source for producing <200-nm light, providing a plurality of mixed cubic...
13	6645893	Glass suitable for optical functional elements and process for producing same A glass includes (a) a matrix containing a compound of at least one nonmetallic element; and (b) a particle selectively formed in the matrix. This particle is made of the at least one nonmetallic...
14	6634189	Glass reaction via liquid encapsulation A method of making chalcogenide glass which utilizes liquid encapsulation to prevent the evaporation loss of low boiling point or high vapor pressure glass components while the glass melt is being...
15	6503859	Molecular, inorganic glasses The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of...
16	6501590	Display medium using emitting particles dispersed in a transparent host Two and three dimensional color image displays. The displays include a display medium having a substantially uniform dispersion of red, green and blue visible light emitting particles sized between...
17	6499317	Synthetic quartz glass and method for production thereof A synthetic quartz glass for optical use, to be used by irradiation with light within a range of from the ultraviolet region to the vacuum ultraviolet region, which contains fluorine, which has a...
18	6395657	Fluoride crystalline optical lithography lens element blank The invention provides a high quality identifiable fluoride crystalline optical microlithography lens element blank for formation into an lens element of a microlithography system. The highly...
19	6352949	Fluoro glass ceramic showing photostimulable properties A glass ceramic material for storing energy of X-rays and releasing said energy by photo-stimulation comprising a fluoride glass matrix containing micro-crystalline particles, said particles having...
20	6277775	GeAs sulphide glasses containing P A GeAs sulphide glass family of transparent glasses having transmission far into the infrared portion of the spectrum, containing a source of phosphorus ion as a co-dopant to effect dispersion of a...
21	6223563	Process for fabricating fluorine-doped sol-gel article The invention reflects discovery of a liquid phase doping technique that, unlike previous techniques, exhibits very little fluorine depletion upon subsequent heating. The invention involves the...
22	6205281	Fluorinated rare earth doped glass and glass-ceramic articles The present invention is directed to a fluorinated rare earth doped glass composition and method for making a glass-ceramic optical article therefrom, e.g. optical fiber waveguides, fiber lasers...
23	6177372	Preparation of high density heavy metal fluoride glasses with extended ultraviolet and infra red ranges, and such high density heavy metal fluoride glasses A heavy metal fluoride glass composition range (in mol percent) consisting essentially of: (16-30)BaF 2 .(8-26)HfF 4 .(6-24)InF 3 or GaF 3 .(4-16)CdF 2 .(6-24)YbF 3 .(4-22)ZnF 2 . In an...
24	6128429	Low phonon energy glass and fiber doped with a rare earth Disclosed herein is a low phonon energy glass and a fiber made therefrom. e glass includes the following components given in mol percent: TBL ______________________________________ germanium ...
25	6074968	Chalcogenide glass fiber Chalcogenide glass fibers having a glass core with two cladding glass layers, the second cladding glass layer having a refractive index lower than that of the core glass and higher than that of the...
26	6037285	Infrared transmitting optical fiber materials An optical fiber amplifier is formed from glass doped with praseodymium. The glass may include one or more of cadmium mixed halide, hafnium halides, geranium and silicon disulphide based vitreous...
27	6015765	Rare earth soluble telluride glasses A telluride glass with glass transition temperature above 150° C., fference between the crystallization temperature and the glass transition temperature of above 200° C., and extended...
28	RE36513	Gallium sulfide glasses This invention is directed broadly to transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, those glasses consisting...
29	5976398	Process for manufacturing semiconductor, apparatus for manufacturing semiconductor, and amorphous material A process for manufacturing a semiconductor, including generating a first plasma of a V group element from a V group element source; generating a second plasma of an auxiliary material for...
30	5858891	Glass-ceramic materials especially for lasers and optical amplifiers, doped with rare earths A glass-ceramic material that is doped with rare-earths and is especially suitable for lasers and optical amplifiers is disclosed. The glass-ceramic material is optically non-scattering, and the...
31	5858052	Manufacture of fluoride glass fibers with phosphate coatings The specification describes a method for the manufacture of fluoride glass optical fibers which are covered with a protective coating of phosphate glass. The coating is produced by dipping the...
32	5856882	Optical fibers and optical fiber amplifiers Disclosed are an optical fiber comprising a core and a cladding wherein the core is composed of a In-Ga-Cd-Pb halide glass and the clad composed of a halide glass possesses a refractive index of...
33	5846889	Infrared transparent selenide glasses A selenide glass with improved mechanical and optical properties such as ended transmission in the infrared region of radiation having wavelengths beyond 15 microns; Tg in the region of 363°-394°...
34	5779757	Process for removing hydrogen and carbon impurities from glasses by adding a tellurium halide Hydrogen and/or carbon impurities are removed from chalcogenide or chalcoide glasses by the addition of a halide, such as TeCl 4 , to the batch composition. During melting of the batch composition,...
35	5772915	Glass compositions A halide glass composition contains iodide and/or bromide. In addition the halide content preferably includes chloride. The preferred metal composition includes no aluminium and 1-10 mole % of...
36	5764661	Laser glasses and laser glass fibers Disclosed are laser glasses composed of a Ga--Na--S glasses doped with one or more kinds of activating ions, laser glass fibers comprising a core and a clad wherein the core is composed of the...
37	5757446	Liquid crystal display matrix array employing ovonic threshold switching devices to isolate individual pixels An acute matrix liquid crystal display panel including 1) a plurality of liquid crystal display elements distributed in a matrix of rows and columns; 2) means for supplying video signals and...
38	5755998	Fluorophosphate fluorescent glass capable of exhibiting fluorescence in the visible region According to the present invention, there is provided a fluorophosphate fluorescent glass, capable of converting invisible ultraviolet rays into visually observable visible rays with a high...
39	5695880	Lead-containing fluoride glass, optical fiber and process for producing it Lead-containing fluoride glass comprises 50-70 mol % of ZrF 4 , 3-5 mol % of LaF 3 , 0.1-3 mol % of YF 3 , and 2-15 mol % of NaF and/or LiF and/or CsF, where LaF 3 +YF 3 =4.5-6 mol %, and further...
40	5670086	Vitrified phosphor articles, intermediates, and preparation methods Vitrified phosphor articles, intermediates, and methods for preparing the articles. In the methods, a combination of species are admixed. The combination of species are precursors for a...
41	5631194	Heavy metal fluoride glass containing indium trifluoride A heavy metal fluoride glass composition for an optical fiber in mole percent, about: 20 to 40% InF 3 , 20 to 0% GaF 3 , 2 to 10% PbF 2 , 0 to 25% ZnF 2 , 0 to 25% CdF 2 ,10 to 25% BaF 2 , 0 to 6%...
42	5629248	Modified germanium sulfide glass A preferred embodiment of a sulfide glass with improved mechanical and optical properties such as extended transmission in the infrared region of radiation having wavelengths of up to about 15...
43	5599751	Alkaline earth modified germanium sulfide glass A sulfide glass with improved mechanical and optical properties such as ended transmission in the infrared region of radiation having wavelengths of up to about 15 microns; Tg in the region of...
44	5599588	Process for preparing metal halides by the sol-gel-method The present invention concerns a process for obtaining metal halides, in particular rare earth and/or alkali earth halides. This process consists of forming a homogeneous solution by mixing one or...
45	5518970	Nitride glasses and methods of making same The present invention relates generally to a novel and unique class of gly materials and methods of making such materials in which substantially all of the anions are nitride ions, in contrast to...
46	5480845	Fluorinated glasses Flourinated glasses containing indium fluoride and MF 2 fluorides in at least 70 moles %, in which M denotes one or several elements of the group Ba, Sr, Ca, Pb. Said glasses contains, in the form...
47	5455211	Methods of making nitride glasses The present invention relates generally to a novel and unique class of gly materials and methods of making such materials in which substantially all of the anions are nitride ions, in contrast to...
48	5389584	Ga- and/or In-containing AsGe sulfide glasses This invention is directed to the production of transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, said glasses consisting...
49	5379149	Glass compositions having low energy phonon spectra and light sources fabricated therefrom Embodiments of the present invention are sulfur rich glass compositions comprising germanium, gallium and sulfur, which glass compositions have a low energy phonon spectrum and which glass...
50	5378664	Optical fiber amplifier and a glass therefor A chalcogenide glass that is doped with praseodymium and contains a rare earth metal is disclosed. The rare earth metal is at least 10 mole percent of the metals in the glass. The concentration of...

Matches 1 - 50 out of 201

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