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5639702 |
Yellow colored glasses and methods of making same
Glass colored in yellow, having transmission in the visible light range of the spectrum, which is produced by blending or adding an iodine compound to a matrix of glass having transmission in the...
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5628106 |
Method of manufacturing magnetic head
In a first glass bonding process, a silicon-dioxide layer is formed on either a first or second magnetic material by vacuum evaporation. The first or second magnetic material with the...
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5616159 |
Method of forming high purity fused silica having high resistance to optical damage
High purity fused silica glass which is highly resistant to optical damage by ultraviolet radiation in the laser wavelength of about 300 nm or shorter is produced. In particular, a fused silica...
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5610107 |
Blue high silica glass
High silica glasses exhibiting blue color by transmitted light are produced by impregnating a porous, high silica glass with a solution of cobalt, aluminum, and selected alkaline earth or alkali...
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5578103 |
Alkali metal ion migration control
A materials system comprising a glass containing alkali metal ions capable of migrating and a silica, alumina, or tantala film deposited on the glass surface, the glass also containing high field...
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5534041 |
Method of making laser eyewear protection
Glass articles transparent to visible radiation, but opaque to ultraviolet radiation, rendering them particularly suitable for protecting the wearer of such lenses from exposure to laser radiation...
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5510144 |
Process for preventing heavy metal migration in crystal articles
Crystal articles are treated at high temperature by a gas produced by the vaporization of sulfate(s) of ammonium and of aluminum or of iron. For example, a temperature of 480° C. is maintained for...
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5491708 |
Integrated optic laser
A laser waveguide medium is provided comprising: a laser glass substrate wherein the substrate is a glass comprising (on an oxide composition basis): TBL ______________________________________...
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5356840 |
Distributed index of refraction type optical element and method of making the same
The distributed index of refraction type optical element consists of an element composing a glass forming oxide and a cation composing a glass modifying oxide, and has therein a distributed index...
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5318614 |
Method of burying optical waveguide paths
Optical waveguide paths are formed under the surface of a glass substrate by a method comprising (a) forming by ion-exchange a dopant ion path on a first substrate surface, (b) applying an...
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5294240 |
Method of forming waveguides with ion exchange of halogen ions
This invention pertains to optical waveguides which includes waveguides of ll shapes and sizes, preforms, and optical fibers made from the preforms, and to a method for making waveguides devoid of...
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5281303 |
Process for manufacturing integrated optical components using silicon mask
A process for the production of an integrated optical circuit in a glass body by ion exchange between certain regions of the glass body and a metallic salt with the use of a mask defining the...
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5269888 |
Method of fabricating integrated optical devices by means of field-assisted ion exchange
Integrated optical devices are fabricated by field-assisted ion exchange on a starting substrate, wherein the substrate is first prepared to be connected to a source of potential difference, is...
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5271082 |
Method of fabricating integrated optical guides of glass
Refractive index change in a glass substrate, necessary to obtain a guiding region, is obtained by bombarding the substrate surface with an electron beam. An electric field induced by negative...
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5266092 |
Processes for preparation of ion exchanged crystalline waveguides
There is disclosed an optical waveguide comprising a K 1 -x Rb x TiOmO 4 single crystal substrate, wherein x is from 0 to 1 and M is P or As, having at least one optically smooth surface wherein...
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5262365 |
Quartz glass doped with rare earth element and production thereof
Rare earth element doped silica glass according to the invention is prepared by doping silica-based glass co-doped with a rare earth element and aluminum additionally with fluorine and has...
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5252112 |
Method of producing a glass front-panel protected from coloring by electron rays
In a glass front-panel for a cathode ray tube, whose surface layer contains more potassium ions than those in the interior thereof, and whose flange is stuck to a rear panel to form a vacuum...
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5250098 |
Thermally durable anti-reflective glass
A process for preparing thermally durable anti-reflective glass comprises injecting element ions into the surface region of a glass sheet by ion implantation and thereafter treating the surface of...
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5244844 |
Method of manufacturing gradient index optical elements
A method of manufacturing a gradient index optical element comprises preparing a sol using silicon alkoxide and an aqueous metal salt solution as a source of index-modifying cations. The sol is...
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5232753 |
Crystal flask treated with an alumino-silicate slip and heat
An article made by treating the surface of a solid article made of a material having a vitreous structure, such as crystal, lead glass and the same, and containing some amounts of heavy metals such...
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5232481 |
Glass dimensional control using ion exchange
This method is directed at a method for making selectively sculptured lithium silicate crystal-containing glass articles. A photonucleable, glass body is selectively exposed to short wave radiation...
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5221310 |
Method of manufacturing wavelength conversion device
A wavelength conversion device exhibiting an excellent wavelength conversion efficiency is provided by forming it in such a manner that an LiTaO 3 substrate is subjected to a proton exchange...
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5211734 |
Method for making a magnetic head having surface-reinforced glass
Glass is surface reinforced by providing a surface layer which contains an oxide component, typically silicon oxide in more excess than the underlying base glass, the oxide component exhibiting...
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5194117 |
Lithium niobate etchant
Oxides of tantalum and niobium are selectively etched using patterned silicon oxide deposited by a low-temperature chemical vapor deposition as a mask and a sulfate flux to selectively remove...
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5160360 |
Process for producing low-loss embedded waveguide
A process for producing a low-loss embedded waveguide is disclosed, which comprises: a first ion exchange step in which a glass substrate containing a monovalent ion and capable of undergoing ion...
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5160523 |
Method of producing optical waveguides by an ion exchange technique on a glass substrate
The invention relates to a method of producing waveguides by an ion exchange technique on a glass substrate. In order to be able to alleviate the tolerances allowed for the ion exchange technique,...
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5151117 |
Solution doping of porous preforms
Disclosed is a method of forming a doped glass body. The glass body is formed by adding a dopant to a glass preform, at least part of which has interconnective pores. The porous preform is immersed...
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5139557 |
Method of performing an ion exchange of optical glass
This invention relates to a method of performing an ion exchange of optical glass to produce an axial gradient index material having a good linear distributiion by bringing a glass body containing...
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5133791 |
Method for making surface-reinforced glass
Glass is surface reinforced by providing a surface layer which contains an oxide component, typically silicon oxide in more excess than the underlying base glass, the oxide component exhibiting...
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5127930 |
Method for manufacturing anti-veiling-glare glass input window for an optical device
Anti-veiling-glare glass input window for an optical device. The window has throughout a shallow surface layer over its peripheral surfaces radiation absorbent free-metal-induced color centers. A...
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5127931 |
Process for ion exchange on glass or glass ceramic
For ion exchange at the surface of glass or glass ceramic, the ion exchange is carried out by means of a solid layer containing mainly one or more salts which do not melt at the exchange...
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5125944 |
Process for producing buried wave guide device
A buried wave guide device is produced by immersing a phosphate glass containing exchangeable ions in a molten salt. Ions are exchanged from the phosphate glass to give a wave guide whose...
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5114453 |
Lightwave guide produced by ion exchange of cs+ ions
A method of production of mono- or multimodal lightwave guides from special substrate glasses of the glass system SiO 2 -B 2 O 3 -Al 2 O 3 - K 2 O-F - , with partial exchange of the Li + , Na...
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5104435 |
Method of making a plate microlens
In a plate microlens of the invention, wherein gradient index lenses each having an optical axis along a normal to a surface of a transparent base and a refractive index profile gradually changing...
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5102736 |
Process for the manufacture of reflecting glass and the product thereof
A process for the manufacture of reflecting glass comprises implantation of ions of selected metal elements under selected conditions of temperature, energy and dosage in a glass substrate to...
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5098792 |
Process for the manufacture of glass with modified radiant energy characteristics and the product so obtained
A process for the manufacture of a glass capable of transmitting and reflecting radiant energy in an amount different from that transmitted and reflected by the original glass is disclosed. An ion...
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5096479 |
Method of enhancing fused quartz body purity
The method of enhancing purity of a fused quartz body having opposed boundary surfaces, includes the steps of maintaining the body at a temperature above 1000° C. and at the same time applying a...
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5091003 |
Ink compositions and method for placing indicia on glass
Indicia is permanently affixed to a glass article utilizing a low viscosity silver nitrate-containing thermal diffusion ink composition which is applied in a predetermined pattern to the surface of...
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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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5078772 |
Process for producing buried waveguide device
A buried wave guide device is produced by immersing a phosphate glass containing exchangeable ions in a molten salt. Ions are exchanged from the phosphate glass to give a wave guide whose...
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5069700 |
method of manufacturing gradient-index glass
A method of manufacturing a large-diameter gradient-index glass having a predetermined refractive index gradient includes the steps of (a) hydrolyzing a solution consisting of an alkoxide of...
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5062877 |
Method for making an optical device
This invention is directed to a method of forming optical devices composed of a photonucleable, crystallizable, lithium silicate glass body having at least one glass lens integral with and rising...
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5057135 |
Method of quickly manufacturing an optical waveguide
In a method of manufacturing an optical waveguide by the use of a substrate which has a first ion of a first refractive index and primary and secondary surfaces, an optical passage is formed in the...
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5057134 |
Process for producing a glass article protected from coloring by electron rays
A process for producing a glass article protected from coloring by electron rays comprises preparing a soda-lime-silica glass, contacting the glass with a molten salt containing potassium ions so...
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5047076 |
Method of fabricating optical fibres by solution-doping
Silica intended to form the core of an optical-fibre preform is deposited as an unvitrified soot inside a reaction tube, where a non-aqueous solution of dopant precursor(s) is then introduced...
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5039326 |
Composition and method for radiation synovectomy of arthritic joints
A method for preparing nonradioactive microspheres adapted for radiation synovectomy of arthritic joints in a mammal involves forming the microspheres by doping a biodegradable glass material which...
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5035734 |
Method of producing optical waveguides
The invention relates to a method of producing optical waveguides by ion exchange technique in a glass substrate (1), the ion exchange between a source of ions (such as AgNO 3 ) and the glass...
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5028107 |
Optical articles for wavelength conversion and their manufacture and use
Articles and process for wavelength conversion are disclosed which use a series of aligned sections of optical materials which are suitably balanced over the series with regard to the section...
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5018811 |
Asymmetric optical waveguides for minimizing bending losses and techniques for fabricating same
A generally circular or elliptical waveguide (2) is fabricated within a substrate (3) such that the waveguide is surrounded by two different indices of refraction, with the index inside the...
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5007948 |
Essentially colorless silver-containing glasses through ion exchange
This invention relates to the production of an essentially colorless alkali meal oxide-Al 2 O 3 and/or B 2 O 3 -SiO 2 , wherein at least a portion thereof contains silver ions resulting from an...
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