Patents Examined by Dalei Dong
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Patent number: 6975793Abstract: Actuators facilitating mechanical beam steering for optical integrated circuits are disclosed. The mechanical beam steering can mitigate thermal sensitivity of optical circuits, for example, arrayed waveguides. Also disclosed are methods for fabricating optical integrated circuits employing actuators.Type: GrantFiled: March 18, 2002Date of Patent: December 13, 2005Assignee: Lightwave Microsystems CorporationInventors: Robert Cole, Michael Guerrero, Kenneth Purchase, Anthony J. Ticknor, Kenneth McGreer, David Menche
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Patent number: 6975805Abstract: The present invention involves a light channel communication component for a vehicle interior member. The light channel communication component comprises an integral polymeric body being a signal-conductive integral medium for transmitting light signals therethrough. The integral polymeric body has a predetermined index of refraction through which the light signals are transmitted. The integral polymeric body further includes a structure of the vehicle interior member to support a shape of the vehicle interior member.Type: GrantFiled: August 15, 2002Date of Patent: December 13, 2005Assignee: Visteon Global Technologies, Inc.Inventors: Donald S Hanson, Harvinder Singh, Richard K. McMillan
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Patent number: 6975801Abstract: A Dispersion Compensation (DC) fiber for low slope transmission fiber (such as a NZDSF) and transmission line including same. The DC fiber has a refractive index profile having a central core with a core delta (?1) value less than 1.8%, a moat surrounding the central core having a moat delta (?2) value greater than ?0.9%, and a ring surrounding the moat having a positive ring delta (?3). The DC fiber's refractive index profile is selected to provide total dispersion less than ?40 and greater than ?87 ps/nm/km, and kappa of greater than 165 and less than 270 nm, all at 1550 nm. The DC fiber, when used in a transmission line, may provide low average residual dispersion across the C, L, and C+L when such lines include transmission fibers with a total dispersion between 4 and 10 ps/nm/km and a dispersion slope less than 0.045 ps/nm2/km at 1550 nm.Type: GrantFiled: July 15, 2002Date of Patent: December 13, 2005Assignee: Corning IncorporatedInventor: Scott R. Bickham
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Patent number: 6975066Abstract: An object is to provide an organic EL element which can realize the improvement in the difference of an emission luminance due to the difference of an emission rise time in a plurality of light emitting portions. Segment portions S for determining an emission in a specific shape and wiring portions L for separately supplying electric currents to the segment portions S are formed. An area of the wiring portion L of the segment portion S is enlarged such that an emission luminance in the segment portion S falls within a range of from a minimum luminance to a luminance 30% higher than that.Type: GrantFiled: June 22, 2001Date of Patent: December 13, 2005Assignee: Nippon Seiki Co., Ltd.Inventors: Hitoshi Wakai, Jun-Ichi Maruyama, Hiroshi Ohkawa
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Patent number: 6972515Abstract: In a flat type color cathode ray tube, in using of a tint or a dark tint panel capable of improving contrast characteristics of a screen and reducing production processes, namely, having the conventional coating process reduction advantage, by optimizing a horizontal pitch and a transmissivity of a shadow mask and a transmissivity of a screen in order to solve a brightness balance deterioration problem at the circumference portion of the screen due to a glass transmissivity difference, it is possible to maintain inner impact resistance and howling characteristics of the shadow mask, in addition, by improving a circumference portion transmissivity of the shadow mask and a screen transmissivity, it is possible to improve a brightness balance at the circumference portion and a quality of the screen.Type: GrantFiled: May 29, 2002Date of Patent: December 6, 2005Assignee: LG. Philips Displays Korea Co., Ltd.Inventor: Hoon Jeong
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Patent number: 6971939Abstract: A non-oxidizing electrode arrangement for an excimer lamp that is formed by coating an electrode of the lamp with a layer of protective layer that prevents the electrode from oxidizing. The protective layer is preferably transparent and possesses a low permeability for oxygen (e.g., silicon oxide, magnesium fluoride, calcium fluoride). The interior of the excimer lamp is evacuated to a pressure level that is lower than the pressure level surrounding the excimer lamp at any time during the non-oxidizing electrode formation process in order to assist in preventing the excimer lamp from fracturing.Type: GrantFiled: May 28, 2004Date of Patent: December 6, 2005Assignee: Ushio America, Inc.Inventors: Holger Claus, Zoran Falkenstein
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Patent number: 6972521Abstract: A low-pressure gas discharge lamp provided with a gas discharge vessel containing a mercury-free gas filling with an indium compound in an amount of about 1 to 10 microgram per cubic centimeter and a partial pressure in the range from 1.0 to 30 micro bar, and a buffer gas for emitting radiation in a continuous spectrum in the visible and near UVA regions of the electromagnetic spectrum, which low-pressure gas discharge lamp is also provided with electrodes and a ballast for controlling the ignition and operation of the lamp.Type: GrantFiled: September 7, 2001Date of Patent: December 6, 2005Assignee: Koninklijke Philips Electronics N.V.Inventors: Robert Peter Scholl, Rainer Hilbig, Achim Koerber, Johannes Baier
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Patent number: 6969951Abstract: A discharge vessel or chamber for a high-intensity discharge lamp is provided, including a central body having a discharge space provided therein, two capillaries closing off respective end openings of the central body and an electrode positioned within each respective one of the capillaries. The central body and the capillaries comprise an alumina material or an alumina-based ceramic material. An average diameter of alumina grains in the central body is greater than an average diameter of alumina grains in the capillaries, and the average diameter of alumina grains in the capillaries is in a range of 10 ?m to 25 ?m.Type: GrantFiled: October 12, 2000Date of Patent: November 29, 2005Assignee: NGK Insulators, Ltd.Inventors: Sugio Miyazawa, Michio Asai
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Patent number: 6965719Abstract: A dispersion compensating optical fiber includes an uncovered dispersion compensating optical fiber containing a core and a cladding, and a resin coating which is disposed around the uncovered dispersion compensating optical fiber, wherein the resin coating has an adhesive property of 10 g/mm or less, and which includes an outer coating layer which is formed to have a thickness of 3 ?m or more, and the outer diameter of the uncovered dispersion compensating optical fiber is in a range from 90 to 125 ?m, and the outer diameter of the dispersion compensating optical fiber is in a range from 180 to 250 ?m.Type: GrantFiled: March 21, 2002Date of Patent: November 15, 2005Assignee: Fujikura Ltd.Inventors: Kazuhiko Aikawa, Yutaka Nagasawa, Shogo Shimizu, Takaaki Suzuki, Masakazu Nakayama, Kuniharu Himeno, Ryozo Yamauchi, Keiji Ohashi, Munehisa Fujimaki
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Patent number: 6957992Abstract: An image intensifier tube includes a photocathode (20) with an active layer (52) providing an electrical spectral response to photons of light. The photocathode (20) also includes integral spacer structure (42) which extends toward and physically touches a microchannel plate (22) of the image intensifier tube in order to establish and maintain a desirably precise and fine-dimension spacing distance “G” between the photocathode and the microchannel plate. A method of making the photocathode and a method of making the image intensifier tube are described also.Type: GrantFiled: December 3, 2004Date of Patent: October 25, 2005Assignee: Litton Systems, Inc.Inventor: Michael Jude Iosue
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Patent number: 6956327Abstract: A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).Type: GrantFiled: June 26, 2002Date of Patent: October 18, 2005Assignee: Toshiba Lighting & Technology Corp.Inventors: Kiyoshi Nishio, Toshiya Tanaka, Takayuki Fujita, Takeo Yasuda
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Patent number: 6954028Abstract: A screen for a cathode ray tube and a method for manufacturing the screen are provided. The screen for a cathode ray tube includes: a phosphor film formed on the inner front surface of a panel where at least one stud pin is mounted, the phosphor film including phosphor layers; a metal layer formed on the phosphor film, which reflects light emitted from the phosphor layers toward the front side of the panel; and a gas exhaust member extended from the metal layer, which provides a path for gas to exhaust, the gas being generated as a filming layer interposed between the phosphor film and the metal layer to make the thickness of the phosphor film uniform is decomposed. To manufacture this screen, a guide block having a mask pattern, which corresponds to a pattern of a metal layer and gas exhaust member to be formed as a single body inside the panel on which the phosphor film and a filming layer have been formed, is fitted into the panel.Type: GrantFiled: June 17, 2002Date of Patent: October 11, 2005Assignee: Samsung SDI, Co., Ltd.Inventor: Hwan-Chul Rho
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Patent number: 6952505Abstract: A composite for use in the aircraft construction industry includes an optical transmission device, such as an optical fiber, embedded within a carrier. The optical transmission device is provided with a high-quality optical interface surface which provides for optical connection to the optical transmission means from outside the carrier. The optical interface surface is provided as part of a micro-optical component which processes the optical signals to improve light extraction from a supply to the optical transmission means. The buried optical transmission device is accessed by a passageway formed in the carrier to the interface surface. If the passageway is formed prior to completion of finishing processes on the composite, a protective plug is provided to close the passageway until the optical connection is required.Type: GrantFiled: January 5, 2001Date of Patent: October 4, 2005Assignee: BAE Systems plcInventors: Nigel Bruce Aldridge, Geoffrey Martland Proudley, Peter David Foote, Ian James Read
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Patent number: 6950577Abstract: A waveguide Bragg grating (WBG) is apodized by varying the duty cycle of selected grating periods while fixing the pitch of the grating periods. In one embodiment, the WBG is implemented in a silicon substrate using polysilicon filled trenches of varying width while keeping the grating periods' pitch constant. The polysilicon trenches are formed so that if the width of one trench is increased compared to an adjacent grating period, the trench width in the other adjacent grating period (if present) is decreased.Type: GrantFiled: July 1, 2002Date of Patent: September 27, 2005Assignee: Intel CorporationInventors: Ansheng Liu, Shlomo Ovadia, Dean A. Samara-Rubio, Michael T. Morse
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Patent number: 6950592Abstract: One or more fiber optic cable management systems provided with an optical communications housing for managing and routing fiber optic cables. Each fiber optic cable management system includes a series of saddle brackets, and a channel for routing and separating matrix fiber optic cables from customer fiber optic cables. Each saddle bracket is capable of routing customer fiber optic cables in multiple directions without bending the customer cables beyond their minimum bend radii. As many saddle brackets as practical are provided in the fiber optic cable management system. Providing a multitude of saddle brackets allows the slack in the customer fiber optic cables to be distributed across more brackets, and allows each saddle bracket to be shorter. Shorter saddle brackets, in turn, increases hand space for a technician to manipulate and route the customer fiber optic cables.Type: GrantFiled: May 31, 2002Date of Patent: September 27, 2005Assignee: Ciena CorporationInventors: Gary C. Gehrke, Boyd R. Baty
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Patent number: 6949871Abstract: An improved discharge lamp is provided which includes a discharge vessel (arc tube) enclosing a discharge space, the discharge vessel (arc tube) including within the discharge space a metal halide ionizable material; first and second discharge electrode feedthroughs, and first and second current conductors connected to the first and second discharge electrode feedthroughs, respectively. The improvement is through the use of a field wire of a material that includes Ni or Ni alloy, and wherein the field wire material exhibits an electrical resistivity at 25° C.<10 ohms/mm2; a photoelectric emission work function>4.0 eV; a thermionic emission work function>4.0 eV; and a melting point>1200° C.Type: GrantFiled: June 24, 2002Date of Patent: September 27, 2005Assignee: Koninklijke Philips Electronics N.V.Inventor: Junming Tu
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Patent number: 6946781Abstract: A cathode structure for an electron gun of a cathode-ray tube having a reduced size and providing a fast cathode start-up time and excellent thermal efficiency. The cathode comprises a closed chamber consisting of a cap supporting an emitting part of the cathode and a dish-shaped skirt having an internal surface which is concave so as to reflect, by radiation, the thermal energy stored in the skirt walls, towards that region of the cap supporting the emitting part. The cathode structure also comprises filament supply leads which pass through the side walls of the skirt and connect to the filament heater contained in the closed chamber.Type: GrantFiled: June 7, 2001Date of Patent: September 20, 2005Assignee: Thomson Licensing S.A.Inventor: Jean-Luc Ricaud
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Patent number: 6946782Abstract: A connector system for a rod-shaped two-ended gas discharge lamp (12) with bases (20) disposed on the connector ends (16) of the discharge lamp (12) and with insert sockets (22) for receiving the bases (20) in a lamp housing (14). Each base (20) is provided with a contact pin (26) linked with a lamp electrode (36) with an insulating cylinder (28) surrounding the contact pin (26) while leaving a lateral connector opening (46) free. Each insert socket (22) is provided with a contact element (58) that can be detachably engaged with the corresponding contact pin (26) through the connector opening (46) of the pertaining base (20) and can be impinged upon with a high voltage. The insert socket is further provided with an insulating body (60) that carries the contact element (58) and covers the connector opening (46) in the connected state.Type: GrantFiled: September 16, 2000Date of Patent: September 20, 2005Assignee: Isi Metz GmbHInventors: Armin Beying, Joachim Jung, Karlheinz Schworm, Günter Fuchs
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Patent number: 6941040Abstract: An optical fiber system includes an optical fiber light transmission system having a light path therethrough, and a filter module positioned to controllably place light filters into the light path of the optical fiber light transmission system. The filter module includes a movable support on which light filters are mounted, and a drive mechanism operably connected to the movable support to controllably move the at least one light filter into and out of the light path. The drive mechanism is operated to move the light filters into or out of the light path.Type: GrantFiled: June 5, 2002Date of Patent: September 6, 2005Assignee: Raytheon CompanyInventors: Gabor Devenyi, Brien Ross, James Whitty
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Patent number: 6940216Abstract: The invention relates to a gas discharge lamp for dielectrically impeded discharges, which gas discharge lamp includes a phosphor layer containing a blue phosphor with a host lattice and Nd3+ as the activator, electrodes for a dielectrically impeded discharge and means for igniting and maintaining the discharge. The invention also relates to a blue phosphor with a host lattice and Nd3+ as the activator.Type: GrantFiled: June 24, 2002Date of Patent: September 6, 2005Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Juestel, Walter Mayr, Detlef Uwe Wiechert, Hartmut Lade