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7618908 Visible light optical polarizer made from stretched H2-treated glass  
The invention is directed to a method for preparing visible light optical polarizers using a non-halide silver salt and any glass composition that the non-halide silver salts is soluble, provided...
7482296 Aluminoborosilicate glass and method for the production of crystallite-free gradient index lenses  
The invention is directed to an aluminoborosilicate glass containing alkali metals for the production of optical components with refractive index gradients which are generated by ion exchange of...
7468148 Visible polarizing glass and process  
The invention is directed to a silver-containing polarizing boroaluminosilicate glass composition that has been doped with a noble metal selected from the group consisting of Pt, Pd, Os, Ir, Rh and...
7288495 Photorefractive glass and optical elements made therefrom  
The present invention provides an alkali alumino-silicate Na—F-containing glass material and a method of making the alkali alumino-silicate Na—F-containing glass material, with the glass...
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...
6887808 Infrared broadband dichroic glass polarizer  
Polarized glass articles having a wavelength range that is broadened for high contrast-ratio applications. A method that imparts to a glass article a high contrast ratio of at least 40 dB for use...
6844277 UV photosensitive melted glasses  
The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate glasses. The photosensitive bulk glass of the...
6777359 Polarizing glass and preparation method thereof  
A polarizing glass comprising geometrically anisotropic particles dispersed in an oriented manner in at least the surface of a glass base body. The glass base body is denoted by the weight...
6762875 Creating refractive index changes in glass by up-conversion of rare earth ions  
A method for creating refractive index changes in a substrate is provided by irradiating the substrate with infrared (IR) or visible light radiation. Ultra-violet (UV) radiation is generated in the...
6606885 Infrared, glass polarizer and method  
A glass polarizer and a method of making the polarizer, the polarizer being produced from an R 2 O—Al 2 O 3 —B 2 O 3 —SiO 2 glass containing limited amounts of ZrO 2 and TiO 2 , and having...
6562523 Direct write all-glass photomask blanks  
A narrowly defined range of zinc silicate glass compositions is found to produce High Energy Beam Sensitive-glass (HEBS-glass) that possesses the essential properties of a true gray level mask...
6344424 Low melting point glass, insulating package, and sealing member  
An insulating package is provided with an insulating base having a bottom plate and frame body, electrodes led from the inside to the outside of the insulating base, and a metal cap to seal the...
6312811 Photochromic naphtho [2,1-b]pyran compounds containing bithienyl or terthienyl substituents, process for their manufacture, and photochromic materials and articles obtained  
The photochromic compounds of the invention correspond to the formula: ##STR1## in which Th 2 represents a bithienyl group in one of the positions 5 to 10 of the naphthenic ring system system, R 1...
6228787 Fluorescent photosensitive glasses and process for the production thereof  
This invention relates to fluorescent photosensitive glasses and a process for the production thereof. The fluorescent photosensitive glasses according to the present invention employ silicate or...
6221480 Broadband contrast polarizing glass  
A polarizing glass article, and a method of making the article, that exhibits a broad band of high contrast polarizing properties in the infrared region of the radiation spectrum, that is...
6197711 Protective filter lens  
An ophthalmic, protective, filter lens, and a method of producing such lens, the lens having a ratio of Z and Y tristimulus values between 0.25-0.40, a dominant wavelength between 570-580 nm. on a...
6177371 Photochromic glass and lens  
A fixed tint, photochromic glasses and sunglass lenses produced therefrom. The glasses have R 2 O--Al 2 O 3 --B 2 O 3 --SiO 2 base compositions, contain silver chloride and bromide contents...
6162749 Photochromic glasses  
The invention concerns photochromic glasses with improved properties having the following composition, in wt. %: SiO 2 : 51-66, B 2 O 3 : 15-23, Al 2 O 3 : 3-10, ZrO 2 : 2.5-11, TiO 2 : 0-1,...
6156684 Light polarization control element using stress-optical coefficient glass and method of producing the stress-optical coefficient glass  
In a light polarization control element using a stress-optical coefficient glass, the stress-optical coefficient glass is substantially composed of a phosphorous acid glass containing 20 to 60...
6132643 Fluorescent photosensitive vitroceramics and process for the production thereof  
This invention relates to fluorescent photosensitive vitroceramics and the process for the production thereof. The fluorescent photosensitive vitroceramics according to the present invention employ...
6089042 Method of forming glass having integral polarizing and non-polarizing regions  
Method of making polarizing glass having integral polarizing and non-polarizing regions disclosed. The method involves applying a protective glass/frit material capable of blocking reducing gas to...
6037283 Plus power, photochromatic glass lenses  
A photochromic glass lens and method of producing such lens, the lens having a plus power and a composition consisting essentially of: TBL ______________________________________ SiO 2 54-58% ...
5958596 Composite material  
A process in which a dye film is cast, the film is peeled off from the substrate and stretched monoaxially, the stretched film is applied to a glass film, and the resultant laminate is conditioned...
5932498 Magnet and method for manufacturing a magnet  
A chemically-machinable glass-magnet composition comprising a photosensitive chemically machinable glass having a magnetic material in admit therewith, wherein the photosensitive chemically...
5698020 Photochromic dental material  
The invention relates to dental materials which contain a photochromic material such as for example a photochromic dye, a photochromic glass, a photochromic ceramic and/or a photochromic glass...
5639701 Permanent tint photochromic glasses  
A photochromic glass having colorant incorporated in the glass composition to impart a permanent tint, and having its chromaticity point shifted from the blue-green side toward the red side of the...
5627114 Laser eyewear protection  
This invention is directed to the production of glass articles transparent to visible radiation, but opaque to ultraviolet radiation, rendering them particularly suitable for protecting the wearer...
5547904 Borosilicate glass having improved UV transmission, thermal and chemical properities and methods of making and using same  
The borosilicate glass has a UV transmission of at least 80% at a UV wavelength of about 254 nm for a borosilicate glass sheet thickness of 2 mm, a linear coefficient of thermal expansion, α 20...
5543269 Image writing on ceramics  
The present invention relates to writing and marking images on ceramic surfaces in a reversible fashion. The images are marked using a laser. The images are erased by heating the ceramic surfaces...
5541142 Method of making a color filter by precipitation of Cu.sub.2 O from a glass matrix  
A non-photochromic colored glass containing crystals of precipitated cuprous oxide in a matrix of glass, the matrix glass consisting essentially of, in cation percent, 35-75% SiO 2 , 15-45% B 2 O...
5491117 Optical filter glasses  
This invention is directed to the production of a silver halide-containing glass article essentially free from silver halide crystals exhibiting a bright yellow coloration which strongly attenuates...
5482902 Brown-photochromic glasses  
This invention is directed primarily to a composition for a photochromic glass which is essentially colorless in the undarkened state consisting essentially, expressed in terms of weight percent,...
5482901 Amber photochromic glasses  
A surface-reduced photochromic glass containing silver halide crystals, having an original transmittance of 60-75%, a darkened transmittance of less than 30% at 25° C., a faded transmittance equal...
5426077 High index brown photochromic glasses  
This invention is directed to photochromic glasses which darken to a brown coloration upon exposure to actinic radiation, which glasses have a refractive index of about 1.6, an Abbe number between...
5424255 High-refractive index phototropic glass  
A high-refractive index phototropic glass having a refractive index of 1.69 to more than 1.7, an Abbe coefficient of at least 35 and a density of at most 3.5 g/cm 3 , has a composition (in % by...
5322819 Ultraviolet absorbing glasses  
A non-photochromic R 2 O-B 2 O 3 -SiO 2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting...
5300465 Photochromic glasses which darken to a pink hue  
A transparent photochromic glass displaying a pink hue in the darkened state which, in bodies of 2 mm cross section, will exhibit the following optical properties: (a) a clear (undarkened)...
5275979 Colored glasses and method  
Thermally induced color is developed in a glass article containing a silver halide crystal phase by including in the glass batch a thermal reducing agent, retaining the thermal reducing agent in...
5256601 Slow fading photochromic glass  
A silver halide photochromic glass has a. a clear luminous transmittance of about 90%, b. A darkened luminous transmittance at 20° C. below about 25%. c. A fading rate at 20° C. such...
5244845 Multipurpose photochromic brown glasses  
A composition for a photochromic glass consisting essentially of, in approximate calculated weight percent, about: TBL ______________________________________ SiO 2 54-58% Ag ...
5217927 Highly refractive, low-density, phototropic glass  
A highly refractive, low-density phototropic glass in which the carriers of phototropy are precipitates containing silver, halogens and copper oxide, and which has a density equal to or less than...
5212120 Photosensitive glass  
A photosensitive borosilicate glass which consists essentially in calculated weight percent on an oxide basis of 20-80% SiO 2 , 8-40% B 2 O 3 , 0-6% Li 2 , 0-28% Na 2 , 0-25% K 2 O, the total Na...
5162826 High index ophthalmic glasses  
This invention relates to the production of glasses exhibiting a refractive index between about 1.66-1.81, a softening point between about 625°-675° C., a strain point between about 455°-490°...
RE33859 Hermetically sealed electronic component  
A ceramic substrate supports a thin or thick film electronic circuit hermetically enclosed by a vitreous glass covering sealed to the ceramic substrate by a heat fused vitreous sealing glass. The...
5078771 Method of making high energy beam sensitive glasses  
The invention relates to high energy beam-sensitive glass articles exhibiting insensitivity and/or inertness to actinic radiation, glass articles which are darkened and/or colored within a thin...
5066524 Crystallized glass article with colored small masses dispersed in a surface thereof  
A crystallized glass article with a colored surface pattern, which comprises a crystallized glass substrate having a surface and small glass masses having a color different from the substrate and...
5059561 UV attenuated colored glasses  
Glasses containing chromophores are partially struck to produce no coloring or only light coloring due to the chromophore. The glasses are colored as desired by contents of colorant ions.
5045510 Process for preparing a surface darkened glass  
A process for preparing a surface-darkened glass is disclosed. In the first step of this process, a specified silicate glass which contains a minor amount of antimony trioxide is provided....
5023209 Fast fading, high refractive index photochromic glass  
This invention is directed to the preparation of silver halide-containing photochromic glasses exhibiting refractive indices between 1.585-1.610, Abbe numbers higher than 41, and densities less...
5019538 Colored photosensitive opal glasses  
This invention is directed to photosensitively opacifiable glasses consisting essentially, in weight percent, of about 14-18% Na 2 O, 0-6% Zno, 6-12% Al 2 O 3 , 0-5% B 2 O 3 , 0-0.2% Sb 2 O 3 ,...
Matches 1 - 50 out of 190 1 2 3 4 >