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8183170 |
Contrast-enhancing UV-absorbing glass and articles containing same
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...
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7951733 |
Blue-violet light blocking glass
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...
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7829489 |
Low CTE photomachinable glass
The present invention describes a composition, method and article for a photomachinable glass having a coefficient of thermal expansion from less than 6×10−6/° C. in the temperature range of 0° ...
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7799711 |
Photomachinable glass compositions having tunable photosensitivity
The invention is directed to photomachinable glass compositions having a controllable or tunable photosensitivity, and to a method for making such compositions. The compositions of the invention...
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7648656 |
Process of making a visible polarizing glass
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...
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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...
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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...
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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...
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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 mat...
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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...
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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...
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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...
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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...
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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...
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6606885 |
Infrared, glass polarizer and method
A glass polarizer and a method of making the polarizer, the polarizer being produced from an R2O—Al2O3—B2O3—SiO2 glass containing limited amounts of ZrO2 and TiO2, and having a silver halide liqui...
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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...
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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...
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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 Th2 represents a bithienyl group in one of the positions 5 to 10 of the naphthenic ring system system, R1...
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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...
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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...
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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...
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6177371 |
Photochromic glass and lens
A fixed tint, photochromic glasses and sunglass lenses produced therefrom. The glasses have R2 O--Al2 O3 --B2 O3 --SiO2 base compositions, contain silver chloride and bromide contents as...
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6162749 |
Photochromic glasses
The invention concerns photochromic glasses with improved properties having the following composition, in wt. %: SiO2 : 51-66, B2 O3 : 15-23, Al2 O3 : 3-10, ZrO2 : 2.5-11, TiO2 : 0-1, Li2 O: 3-7,...
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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...
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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...
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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...
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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 ______________________________________ SiO2 54-58% Ag...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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5541142 |
Method of making a color filter by precipitation of Cu2 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% SiO2, 15-45% B2 O3,...
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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...
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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 ...
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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,...
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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...
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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/cm3, has a composition (in % by...
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5322819 |
Ultraviolet absorbing glasses
A non-photochromic R2 O-B2 O3 -SiO2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting essentially...
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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) luminous...
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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...
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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 that, after a...
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5244845 |
Multipurpose photochromic brown glasses
A composition for a photochromic glass consisting essentially of, in approximate calculated weight percent, about: TBL ______________________________________ SiO2 54-58% Ag 0.18-0.33% B2 O3 18-22%...
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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...
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5212120 |
Photosensitive glass
A photosensitive borosilicate glass which consists essentially in calculated weight percent on an oxide basis of 20-80% SiO2, 8-40% B2 O3, 0-6% Li2, 0-28% Na2, 0-25% K2 O, the total Na2 O+K2 O...
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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° C.,...
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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...
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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...
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