Norton Company

Texas Instruments Corporation

Raytheon Company

James T Hoggins

Paul Klocek

Louis K Bigelow

Robert B Chipper

Ralph M Horton

David H Rester

Brent L Sisney

James Jay Hudgens

Daniel J Murphy

Royce A Anthon

Shih-Yee Kuo

Frank J Csillag

Deborah Gunderson

Cristan Ellison

Thomas McKenna

An optical apparatus () includes a base member () with a plurality of grooves (), and includes a respective lens () fixedly mounted in each groove. Optical filters () are mounted on the support member in predetermined locations. One such lens is fixedly secured to an input optical fiber (), and the input fiber is used to introduce radiation into the apparatus. Several output optical fibers () are successively positioned in relation to respective lenses by a fiber positioner (), which monitors the amount of radiation passing through the fiber being positioned, and then causes a laser () to fuse the fiber end to the associated lens in a selected position.

Method and apparatus for effecting alignment in an optical apparatus

An apparatus includes a support section which supports a further section, an optically transmissive substrate, and a dispersive section, the further section transporting plural signal components at respective frequencies along a path of travel. A plurality of optical fibers have ends fixedly coupled to a surface on the substrate. The dispersive section has a dispersive characteristic which deviates a direction of travel of each signal component by a respective different amount to optically map each signal component between the end portion of a respective fiber and the path of travel in the further section. During assembly, the fiber ends are moved relative to the surface while radiation passing through them is monitored, and then they are fixedly coupled to the surface in a selected position.

A protectively coated optical device which includes an infrared transmissive optical surface and an infrared transmissive polymer coating on the surface having low hardness, high strength and low elastic (Young's) modulus and is transmissive in the 8 to 12 micrometer wavelength range. The hardness is less than 50 kg/mm.sup.2, the strength is from about 10,000 to about 100,000 psi and the elastic (Young's) modulus is from about 0.2.times.10.sup.6 to about 3.times.10.sup.6 psi. The polymer is one of propylene, diene, polyamides, styrene, copolymers thereof and ethylene-octene copolymer, polyvinylpyrrolidene, poly(acenaphthylene), styrene/ethylenebutylene copolymer, poly(1-butene), polybrene, poly(acrylic acid, ammonium salt), polyamide resin, ethylene/propylene copolymer and ethylene/propylene/diene terpolymer, which are infrared (8 to 12 micrometers) transparent and neoprene, polyurethane, fluorelastomer, polycarbonate, polyether sulfone, polyether ether-ketone, tetcel and polyacrylate which are rain erosion resistant and combinations thereof.

Polymeric infrared optical protective coating

A thermal imaging system (10) including a housing (12) having a cavity (28) therein is provided. A plurality of thermal sensors (14) are placed in the cavity (28) of the housing and an IR window (16) in the opening of the cavity protects the thermal sensors (14). The IR window (16) includes first (18) and second (20) faceplates formed from an IR transmissive material and a honeycomb support structure (22) between the faceplates for supporting the faceplates. The window (16) may also include an adhesive layer (25 & 26) between each faceplate and the support structure (22) for adhering each faceplate to the support structure (22).

Low cost infrared window and method of manufacture

A method for depositing diamond film on a substrate utilizing a tuneable microwave cavity with an adjustable height and antenna and an electrically insulated chamber comprises the steps of decreasing the pressure within the chamber, creating a plasma including hydrogen gas within the chamber, tuning the cavity by varying its height and the depth of insertion of the antenna to minimize reflected power and properly position the plasma on the substrate, injecting a hydrocarbon gas into the chamber, and maintaining the plasma for a sufficient time for diamond film of the desired thickness to be deposited.

Diamond film deposition with a microwave plasma

Synthetic diamond film produced by chemical vapor deposition can be crushed to obtain diamond grit which has useful abrasive properties. The flexibility of CVD deposition processes in determining diamond film properties means that CVD diamond grit properties can be tailored to particular abrasive applications. In a disclosed embodiment, the grit particles are coated with a magnetic material. The coated grit particles can then be aligned with a magnetic field, and the coated grit particles are bonded to a matrix while aligned. In a further disclosed form of the invention, a chemical vapor deposition system, such as an arc jet plasma deposition system, is provided in a chamber.

Method for making diamond grit and abrasive media

A protectively coated optical device which includes an infrared transmissive optical surface and an infrared transmissive polymer coating on the surface having low hardness, high strength and low elastic (Young's) modulus and is transmissive in the 8 to 12 micrometer wavelength range. The hardness is less than 50 kg/mm.sup.2, the strength is from about 10,000 to about 100,000 psi and the elastic (Young's) modulus is from about 0.2.times.10.sup.6 to about 3.times.10.sup.6 psi. The polymer is one of propylene, diene, polyamides, styrene, copolymers thereof and ethylene-octene copolymer, polyvinylpyrrolidene, poly(acenaphthylene), styrene/ethylene-butylene copolymer, poly(1-butene), polybrene, poly(acrylic acid, ammonium salt), polyamide resin, ethylene/propylene copolymer and ethylene/propylene/diene terpolymer, which are infrared (8 to 12 micrometers) transparent and neoprene, polyurethane, fluorelastomer, polycarbonate, polyether sulfone, polyether ether-ketone, tetcel and polyacrylate which are rain erosion resistant and combinations thereof.

The disclosure is directed to a bonding tool for use primarily in thermo-compression bonding of electronic circuit components and to a method of making the bonding tool. In one form of the disclosure, a holder is provided and has a substrate mounted at an end thereof. The holder is adapted to receive a heating element. A polycrystalline diamond film is disposed on the substrate, the film preferably being deposited by chemical vapor deposition. In a disclosed embodiment the substrate is a material selected from the group consisting of polycrystalline diamond, cemented tungsten carbide, silicon carbide, cubic boron nitride, and tungsten. In a further form of the disclosure, a ceramic substrate is provided which has a favorable thermal conductivity property as well as substantial electrical conductivity sufficient to permit shaping by electrical discharge machining ('EDM').

Bonding tool and its fabrication

To prevent thermal stress from damaging a PCD or diamond, multilayer metal coatings for bonding polycrystalline diamond compacts and diamond crystals to a matrix comprise a first metal layer of a refractory metal, such as tungsten, a compliant metal layer of copper, and an outer metal layer of a refractory metal such as tungsten. Metallic bonding layers of a metal, such as nickel, are placed between the tungsten and copper layers for improved bonding. The method of manufacturing multilayer metal coatings comprises applying the inner metal layer by chemical vapor deposition, applying the first bonding layer metal by electrolytic deposition, applying the compliant layer metal by electrolytic deposition, applying the second bonding layer by electrolytic deposition and applying the outer layer by chemical vapor deposition. A superabrasive tool element comprises a coated diamond product bonded either to a matrix comprising tungsten carbide or iron powder or to a cemented tungsten carbide support.

Growing community of inventors

Plano, TX, United States of America

James T Hoggins