Class 264/1.23 - Halogen containing

Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the nonresinous material contains a halogen,
No. of patents: 25
Last issue date: 06/10/2008

Number	Title	Issue Date
7384581	Forming transparent crystalline elements by cold working An infrared optical element, and methods for its manufacture. The optical element is made by cold working an ingot of a soft crystalline ionic solid such as silver halide or a thallium halide inside a sacrificial split die. The solid preferably includes at most one ...	06/10/2008
7204942	Method of making a fluoride crystalline optical lithography lens element blank The method of making a high quality fluoride crystalline optical microlithography lens element blank includes crystallizing a fluoride crystalline member with dimension ≧200 mm from a melt, annealing the fluoride crystalline member and qualifying the resulting mem...	04/17/2007
7200311	Surface corrugation on internal reflection infrared waveguide for enhanced detection sensitivity and selectivity Internal reflection infrared waveguides having enhanced surface sensitivity and methods for using them are provided. In various embodiments, the internal reflection infrared waveguides can include a multiple internal reflection (MIR) crystal that is substantially tr...	04/03/2007
7148480	Polycrystalline optical window materials from nanoceramics Optical windows for protecting infrared sensing instruments are manufactured from nano-sized crystallites by compressing the crystallites into a continuous mass under high pressure in the presence of a pulsed electric current, preferably one produced by spark plasma...	12/12/2006
6699408	Method of making a fluoride crystalline optical lithography lens element blank Method of making a high quality identifiable fluoride crystalline optical microlithography lens element blank for formation into an lens element of a microlithography system. The highly qualified fluoride crystalline characteristics of the fluoride optica...	03/02/2004
6269661	Method for manufacturing optical components for use in the ultraviolet region The present invention provides a method for manufacturing an optical component that have increased transmittance in the ultraviolet region of the spectrum. The method includes the steps of cutting out a part from a block material; polishing optical sides ...	08/07/2001
6103147	Method and apparatus for manufacturing curved gamma camera detector crystals An apparatus and methods for manufacturing curved scintillation crystal detector plates uses hot forging of crystal material. Crystal material is brought to a temperature between its plastic temperature and its melting temperature, and it is pressed betwe...	08/15/2000
5723076	Method of producing large polycrystalline plates from optical and scintillation materials Method of manufacturing large polycrystalline plates from optical and scintillation materials consists in heating a crystalline blank up to the temperature of 0,5Tmelt.	03/03/1998
5700404	Process and device for casting a large-area crystalline salt body A process and device for producing an optically pure polycrystalline salt body by melting a starting material for the salt and then introducing the melted material into a casting mould having a base which is kept at a temperature of 1° C. to 50° C. belo...	12/23/1997
5658504	Method of producing an infrared transmitting barium fluoride sintered body The present invention provides a method of producing an infrared ray transmitting material, a large-sized one which can be manufactured at a low price, consisting of a polycrystal not liable to cleavage, which makes only a slight absorption of infrared ra...	08/19/1997
5622659	Method of preparing doped lithium fluoride thermoluminescent radiation detector A process for preparing doped lithium fluoride suitable for use as a thermoluminescent radiation-sensitive material includes the sequential steps of: 1) preparing a mixture of microcrystals of lithium fluoride and one or more dopants; 2) heating the mixtu...	04/22/1997
5575960	Method of manufacturing an infrared optical fiber A method of manufacturing an unclad infrared optical fiber hot extrudes silver halide crystals through a die while simultaneously applying a pressure of 5 to 15 tons/cm2 to the crystals and a tensile load to the forming fiber, the tensile load ...	11/19/1996
5575959	Process for making low cost infrared windows Low cost broadband infrared windows are fabricated using a near net shape process which greatly reduces the cost of machining and grinding window materials. The fabrication of zinc sulfide (ZnS) IR windows uses ceramic powder processing to avoid the expen...	11/19/1996
5186870	Process for fabricating an IR transmitting optical fiber The present invention is directed to a process for manufacturing a cladded optical fiber. The cladding and core are halide materials. An interface for inhibiting radiation scatter is provided at the boundary between the halide cladding and the halide core...	02/16/1993
4600442	Process for the removal of impurities from optical component materials A process is disclosed for the removal of water and water derived impurities, e.g. OH-, substitutionally or interstitially incorporated in the structure of crystalline and amorphous materials, more specifically, in metal oxides, e.g. fused sili...	07/15/1986
4414164	Process and apparatus for producing preforms for optical fibers In order to produce a preform or parison from which an optical fiber can be drawn, a vitrifiable substance such as silicon chloride and a doping agent such as germanium chloride, for example, are fed in liquid form and at room temperature to a spray nozzl...	11/08/1983
4410468	Hot press-forging of an optical body with dynamic constraint by crystal powder A method is disclosed for hot press-forging a normally frangible optically integral crystalline mass ("optical body") in a closed die, by directly pressing a surface of the mass while it is peripherally surrounded by a crystal powder the amount of which i...	10/18/1983
4217318	Formation of halide optical elements by hydrostatic press forging Fine-grained halide bodies are formed which have comparable optical properties to a single crystal halide body. The halide bodies are formed by press forging while an essentially constant fluid pressure is applied to the halide body....	08/12/1980
4123483	Manufacturing method of an optical waveguide A method of manufacturing an O-ring type optical waveguide wherein a layer of fused silica is formed on the smooth cylindrical surface of an elongated member of fused silica and thereafter a thin layer of doped fused silica having an index of refraction g...	10/31/1978
4118448	Preparation of high strength halide bodies Fine-grained polygonized halide bodies are formed having comparable optical properties to a single crystal halide body. Heat and force are applied to the halide body to reduce the dimension of the body in one direction while the body is constrained in oth...	10/03/1978
4085172	High strength halides Fine-grained polygonized halide bodies are formed having comparable optical properties to a single crystal halide body. Heat and force are applied to a single crystal halide to recrystallize or polygonize the halide. The body is then annealed to suppress ...	04/18/1978
4044112	Hot-pressable magnesium fluoride powder A process is disclosed for converting basic magnesium carbonate into pure hot-pressable magnesium fluoride such as is used for the hot-pressing of infra-red radiation transmitting optical bodies. The process includes contacting a slurry of basic magnesium...	08/23/1977
4044082	Multiple extrusion of polycrystalline extrudates Scintillation phosphors, infrared and ultraviolet transmitting shaped articles of unrestricted length and arbitrary cross section are formed by multiple extrusion of a relatively small single crystal, melt-grown macrocrystal ingot, or, re-extrusion of a r...	08/23/1977
4013796	Hot-pressed ionic fluoride optical bodies free of absorption bands and method of making them A hot-pressed optical body is disclosed which is free from absorption bands due to carbon dioxide, water, hydroxyl ion and acid fluorides in the ultraviolet, visible and near-infrared wavelength regions. Typically, the optical body is formed from a powder...	03/22/1977
3933970	Shaped press-forged normally frangible inorganic crystals A polycrystalline shaped article useful as a light-transmitting body or scintillation phosphor is formed from an essentially monocrystalline melt-grown macrocrystal ingot by pressing the ingot between opposed surfaces with no radial restraint, at a temper...	01/20/1976

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Class 264/1.23 - Halogen containing