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| Number | Title | Issue Date |
| 4897101 | Method of forming a precision glass mold and article A method of forming precision glass molds suitable for molding glass optical elements or lenses is disclosed. The glass molds define first and second opposed optical molding surfaces. Each master is formed by defining a master cavity adapted to form a fir... | 01/30/1990 |
| 4883528 | Apparatus for molding glass optical elements An apparatus for molding glass optical elements by means of at least one molded glass mold is disclosed. The optical element, which may be a lens and which may be formed of glass, is molded within an apparatus that comprises a pair of molds of which at le... | 11/28/1989 |
| 4877306 | Coated optical waveguide fibers An optical waveguide fiber is provided which comprises (a) a glass core; (b) a glass cladding which includes a barrier layer in the region of its outer surface which has an index of refraction and an absorption coefficient which are greater than the index... | 10/31/1989 |
| 4854958 | Process to mold precision glass articles The present invention is directed to a four-step process for molding glass articles of high precision and excellent surface figure. A glass preform having an overall geometry closely approximating that of the desired final product is placed into a mold, t... | 08/08/1989 |
| 4834494 | Expanded beam waveguide connector A field-installable, expanded beam waveguide connector is provided by opposing molded glass bodies having integrally formed therein an aspheric lens with protective ring and conically-shaped fiber alignment depressions. The glass bodies are inserted withi... | 05/30/1989 |
| 4822389 | Capillary splice method An optical fiber splice and the method of forming it are described wherein a hollow cylindrical glass member is provided, the member having a bore along the longitudinal axis thereof. Fluid at a pressure in excess of ambient pressure is provided to the bo... | 04/18/1989 |
| 4807959 | Method of splicing fibers The method of forming an optical fiber splice is described wherein a hollow cylindrical glass member is provided, the member having a bore along the longitudinal axis thereof. The member is formed with tapered, funnel-like apertures at each end thereof fo... | 02/28/1989 |
| 4797144 | Deep pressing mold and process for molded optical elements A method and apparatus for molding precision optical quality glass elements having complex and concave surfaces requires the apportionment of relative movement between two opposing mold surfaces. First and second molds are contained within a floating alig... | 01/10/1989 |
| 4789389 | Method for producing ultra-high purity, optical quality, glass articles A method for producing ultra-high purity, optical quality, glass articles is disclosed which involves: (1) forming a gel from a silicon-containing organic compound, such as, TEOS; (2) drying the gel to produce granules having a mean particle size of less ... | 12/06/1988 |
| 4765702 | Glass integrated optical component An integrated optical component including a monolithic glass body having a surface in which at least one cavity is molded. An optical circuit path, which is formed in the surface by ion exchange, is aligned with the cavity.... | 08/23/1988 |
| 4763970 | Non-pistoning capillary splice An optical fiber splice wherein a hollow cylindrical glass member is provided defining a longitudinal cylindrical aperture therein. Means adjacent the aperture defining a longitudinal groove parallel to the longitudinal aperture and in communicating relat... | 08/16/1988 |
| 4750926 | Method of making precision shaped apertures in glass Method of producing precision shaped apertures in glass is shown. A hollow glass member defining a longitudinal aperture is provided. A carbon graphite member is shaped externally to a desired shape, disposed within the longitudinal aperture in the glass ... | 06/14/1988 |
| 4741748 | Heating oven for preparing optical waveguide fibers A heating oven for processing glass materials from which optical waveguide fibers are prepared is provided which comprises: (a) an elongated chamber for receiving the glass material to be processed; and (b) means for heating the chamber, said means comprising ... | 05/03/1988 |
| 4362545 | Support member for an optical waveguide preform An article suitable as an integral handle for an optical waveguide preform is disclosed. The article comprises a hollow tubular member defining a substantially longitudinal aperture and having one end thereof tapered and of diminishing wall thickness for ... | 12/07/1982 |
| 4358181 | Gradient index optical waveguide and method of making In the method of making a preform for a high numerical aperture gradient index optical waveguide, the concentration of two dopant constituents is changed during fabrication. Concentration of the first dopant, GeO2, is changed radially as the pr... | 11/09/1982 |
| 4310339 | Method and apparatus for forming an optical waveguide preform having a continuously removable starting member A substantially continuous method of and apparatus for forming an article suitable for an optical waveguide preform wherein the starting member is continuously removed is disclosed. The preform is formed by providing a starting member or bait and applying... | 01/12/1982 |
| 4294190 | Method of coating optical waveguide filaments and coating die A method of coating an optical waveguide filament employing a die body having an at least partly tapered central aperture and radial means for introducing coating material to the central aperture is disclosed. The method includes exposing the optical wave... | 10/13/1981 |
| 4289522 | Support member for an optical waveguide preform An article suitable as an integral handle for an optical waveguide preform is disclosed. The article comprises a hollow tubular member defining a substantially longitudinal aperture and having one end thereof tapered and of diminishing wall thickness for ... | 09/15/1981 |
| 4289517 | Method of forming an optical waveguide preform A method of forming a preform suitable for optical waveguides is disclosed. The method comprises providing a hollow tubular member defining a substantially longitudinal aperture and having one end thereof tapered and of diminishing wall thickness for the ... | 09/15/1981 |
| 4286978 | Method for substantially continuously drying, consolidating and drawing an optical waveguide preform A substantially continuous method for drying, consolidating and drawing an optical waveguide preform is disclosed. A porous soot preform suspended from a substantially hollow longitudinal preform handle having a longitudinal aperture therein is provided. ... | 09/01/1981 |
| 4280829 | Apparatus for controlling internal pressure of a bait tube This invention pertains to an apparatus for controlling the diameter of a glass bait tube during the deposition of glassy layers therein. The exhaust end of the bait tube is connected to a vented chamber. A gas source is connected to the chamber by a mass... | 07/28/1981 |
| 4280827 | System for measuring optical waveguide fiber diameter The diameter of an optical fiber being drawn is monitored and controlled by an optical measuring technique. An electrical input signal is generated from the fringe pattern produced by directing a laser beam onto the fiber. The input signal is connected to... | 07/28/1981 |
| 4263031 | Method of producing glass optical filaments A method of incorporating an additive or dopant oxide into a glass body produced by the oxidation of vaporous source material in a flame. The resultant glassy particles are deposited to form a porous preform having a uniform refractive index. During the c... | 04/21/1981 |
| 4251251 | Method of making optical devices A method of making solid glass articles by the flame hydrolysis technique. First and second layers of glass soot produced by a flame hydrolysis are deposited on the outside surface of a mandrel to form a porous preform. The refractive index of the soot pa... | 02/17/1981 |
| 4233045 | Apparatus and method for making optical filament preform A glass optical waveguide filament preform is prepared by chemical reaction of vapor ingredients within a glass bait tube. A reactant feed tube extends into one end of the bait tube and terminates just short of the hot zone where reaction occurs. The end ... | 11/11/1980 |
| 4210386 | Fluorine out-diffused optical device and method A fluorine containing silicate glass substrate is heated to a temperature sufficiently high to permit fluorine to out-diffuse from the surface thereof. A surface region is formed having a gradient fluorine concentration in a direction perpendicular to the... | 07/01/1980 |
| 4208200 | Filament coating system Disclosed is an optical waveguide coating system having means for cooling the hot filament prior to the time that the filament enters the coating apparatus. The cooling means comprises an elongated container through which the filament passes. A coolant ja... | 06/17/1980 |
| 4203744 | Method of making nitrogen-doped graded index optical waveguides A method of forming graded index, nitrogen-doped optical waveguides. A cylindrically-shaped porous preform comprising at least two oxides is initially formed. One of the oxides, which more readily reacts with nitrogen, has a greater concentration near the... | 05/20/1980 |
| 4203553 | Ribbon burner An elongated burner, which produces a stream of metal oxide soot, comprises three adjacent housings. A centrally disposed housing contains a linear array of orifices for issuing a gas-oxygen mixture to produce a linear flame. Disposed on opposite sides of... | 05/20/1980 |
| 4193980 | Dry preparation for reticulocyte staining A dry stain for reticulocyte staining comprising a mixture of new methylene blue N dye, potassium acetate, and an anti-blood-clotting agent. The stain is prepared in a concentrated aqueous solution, filtered, dispensed volumetrically into tubes, and dried... | 03/18/1980 |
| 4184653 | Spool for filament winder A spool is disclosed for winding an optical waveguide filament during the drawing thereof. Each end of the spool is provided with an annular resilient member which forms a part of a channel for receiving the filament. The resilient member must be displace... | 01/22/1980 |
| 4184741 | Filament-to-device coupler A coupler is disclosed for properly positioning the endface of an optical waveguide filament with respect to an optoelectronic device in a repeatable fashion. Three elongated rods of deformable material are disposed in mutually contacting relationship wit... | 01/22/1980 |
| 4182500 | Optical waveguide shipping spool Disclosed is a spool for shipping low expansion optical waveguide filament. The filament supporting portion of the spool is a composite structure consisting of a cylindrically-shaped barrel of material having a thermal coefficient of expansion no greater ... | 01/08/1980 |
| 4179185 | Coupler for optical communication system A coupler for coupling an optical signal progagating in any one of a plurality of optical waveguide filaments to all of the remaining filaments. The coupler comprises a plurality of optical waveguide filaments, the end portions of which are fused together... | 12/18/1979 |
| 4168921 | Cable connector or terminator A cable connector or terminator suitable for coaxial cables, devices including coaxial cable-like fittings, or the like embodying a protective or security shield is disclosed. The connector or terminator includes a protective sleeve-like shield open at on... | 09/25/1979 |
| 4165223 | Method of making dry optical waveguides A method of making low loss glass optical waveguides, wherein at least one coating of glass soot is deposited by the flame hydrolysis process on a starting member. The starting member is removed from the soot preform leaving an aperture therein. While the... | 08/21/1979 |
| 4157906 | Method of drawing glass optical waveguides A method of making glass optical waveguides by the flame hydrolysis technique. Particles of glass soot produced by flame hydrolysis are deposited on the outside surface of a mandrel to form a porous preform. The soot particles closer to the mandrel have a... | 06/12/1979 |
| 4154592 | Method of drawing optical filaments A method of forming an article such as an optical waveguide filament by disposing a draw blank in a cylindrical muffle. The muffle is heated to a temperature sufficient to cause a first end of the blank to reach the drawing temperature of the material the... | 05/15/1979 |
| 4138069 | Winding apparatus for glass optical filaments Disclosed is a method and apparatus for winding glass optical waveguide filaments during drawing thereof. When a spool is full, the apparatus automatically changes spools, attaches the filament being drawn to a spool moved into the winding station, and se... | 02/06/1979 |
| 4136828 | Oxide depositing ribbon burner An elongated burner for producing a stream of metal oxide soot comprises a burner face having two parallel arrays of orifices for issuing a gas-oxygen mixture to produce two intersecting linear flames. Disposed between the gas-oxygen orifices is an array ... | 01/30/1979 |
