Abstract: A light emitting device (LED) employs one or more conductive multilayer reflector (CMR) structures. Each CMR is located between the light emitting region and a metal electrical contact region, thereby acting as low-loss, high-reflectivity region that masks the lossy metal contact regions away from the trapped waveguide modes. Improved optical light extraction via an upper surface is thereby achieved and a vertical conduction path is provided for current spreading in the device. In an example vertical, flip-chip type device, a CMR is employed between the metal bottom contact and the p-GaN flip chip layer. A complete light emitting module comprises the LED and encapsulant layers with a phosphor. Also provided is a method of manufacture of the LED and the module.

Abstract: In this disclosure there is a method, system and a tool for analyzing e-channel data for a website and for applying the analytics for obtaining a rule based personalized website. The e-channel data is obtained, pre-processed and integrated. Different analytics are performed on the integrated data and reports are generated. In addition, this disclosure describes a marketing association tool for extracting useful rules from the pre-processed data and using the rules for enhancing the website dynamically and for generating decision support reports.

Abstract: The optical component (4) is mounted on an optical chip in alignment with an optical fibre (1) which is mounted within a V-groove (2) formed in the chip, the optical component (4) has two non-parallel location surfaces (4A, 4B) which abut against corresponding location features (5, 6) on the chip to locate the component (4) in a first direction (Y-axis) substantially perpendicular to the plane of the chip and in a second direction (Z-axis) which is perpendicular to said first direction (Y-axis) and substantially perpendicular to the length (X-axis) of the V-groove (2), and the optical component (4) is mounted on the chip so as to overhang one end (2A) of the V-groove to enable the end (1A) of the optical fibre (1) to be brought into a close, abutting relationship with the component (4).

Abstract: An interferometer is integrated on an optical chip. The optical chip is formed on a layer of silicon separated from a substrate by a layer of insulating material. The optical chip includes an integrated fiber connector for connecting the optical chip to one or more optical fibers. The fiber connector includes a groove formed in the substrate for receiving an optical fiber and a waveguide for transmitting light to or from the fiber connector. The waveguide includes rib waveguides formed in the layer of silicon and at least one phase modulator for altering the phase of light traveling along one of the rib waveguides. This arrangement forms an interferometer in which light transmitted along different optical paths can be combined and the effective path length of at least one of the optical paths can be altered by the phase modulator.

Abstract: The application describes the addition of serrations to the edge of the light transmissive layer of an integrated optical device. This enables scattered background light to be coupled out of the device, improving the signal-to-noise ratio.

Abstract: An integrated optical circuit formed on an optically conductive substrate having light absorbing means comprising one or more doped areas (1) of the substrate where the doping concentration is greater than that of areas of the substrate forming the optical circuit (2) to absorb stray light in the substrate which is not guided by components of the optical circuit.

Abstract: An apparatus is provided for coupling an optical fibre to a waveguide on an optical chip, the apparatus comprises a recess in the chip for receiving the optical fiber, the recess comprising a V-groove the side faces of which locate the position of the fiber in directions perpendicular to the optical axis of the fiber so as to position the fibre in alignment with the waveguide, and an end face adjacent the end of the waveguide, the end face of the recess being substantially flat and substantially perpendicular to the plane of the chip with its normal inclined to the optical axis of the waveguide so an optical fiber having an inclined end face can be brought into a close, abutting relationship with the end of the waveguide and brought into rotational alignment therewith about its optical axis by positioning the fiber so its inclined end face lies in planar contact with the end face of the recess.

Abstract: The polarizer is formed on a silicon rib waveguide (4) having an upper face and two side faces, and comprises a section of the silicon rib waveguide (4) with a buffer layer (6) and a light absorbing layer (7) on either the upper face of the rib or at least one side face of the rib. The buffer layer (6) has a refractive index similar to that of the waveguide (4) such that light traveling along the waveguide (4) and incident upon the respective face thereof passes into the buffer layer (6) and then into the light absorbing layer (7) so either the TM (transverse magnetic) or TE (transverse electric) mode of the light traveling along the waveguide is attenuated.

Abstract: An integrated optical circuit for use in a fibre optic gyroscope which senses rotation rates by determining a phase shift due to the Sagnac Effect between light beams travelling around an optical fibre sensing loop (4) in opposite directions, the circuit being provided on a silicon-on-insulator chip comprising a layer of silicon separated from a substrate by an insulating layer, the circuit comprising: rib waveguides (11) formed in the silicon layer for receiving light from a light source (2) and transmitting light to a light detector (3), fibre optic connectors (9) in the form of grooves etched in the silicon layer for receiving the respective ends of the optical fibre sensing loop (4); rib waveguides (11) formed in the silicon layer for transmitting light to and from said fibre optic connectors (9) so as to direct light beams in opposite directions around the sensing loop (4) and receive light beams returning therefrom, phase determining means and (13,17,31) integrated in silicon layer for determining a pha

Abstract: A turntable optical transmission circuit has a light source forming an input to a waveguide, a detector detecting light output from the waveguide, a comparator for comparing the output with a predetermined value to generate a difference signal and a waveguide trimmer for changing the waveguide transmission in dependence on the difference signal until the output matches the predetermined value.

Abstract: This invention pertains to metal-air electrochemical cells wherein one or more air entry ports is located in the bottom of the cathode can, to provide for entry of oxygen-rich air into the cathode can, where the oxygen participates in the chemical reaction whereby the cell produces electrical energy. In this invention, multiple small air entry ports are provided. Generally, the use of multiple ports distributed over the bottom of the cathode can, opposite the reaction surface of the cathode assembly, while not increasing the overall open area of the ports, results in an increase in the ratio of the cell limiting current to the rate at which moisture is lost from the cell. Accordingly, moisture loss as a function of electrical energy produced, is reduced.

Abstract: A simple locking latch arrangement is disclosed which maintains barbecue side shelves in the horizontal orientation. The latch arrangement is freely pivotal on pin members of the shelf and prevent upward removal of the pins unless the latch is moved to the release position. The latch is designed to provide a gravity bias urging the latch to the locked position.

Abstract: A two tiered warming rack makes use of the additional height of the upper housing of a gas grill and utilizes the support linkage of the first warming rack. The second warming rack is fixed to the first rack and moves therewith. The second rack is generally parallel to the first rack and maintains the same orientation as the first rack. Preferably, the second rack is supported in a cantilevered manner from the rear portion of the first rack.

Abstract: This invention pertains to metal-air electrochemical cells wherein one or more air entry ports is located in the bottom of the cathode can, to provide for entry of oxygen-rich air into the cathode can, where the oxygen participates in the chemical reaction whereby the cell produces electrical energy. In this invention, multiple small air entry ports are provided. Generally, the use of multiple ports distributed over the bottom of the cathode can, opposite the reaction surface of the cathode assembly, while not increasing the overall open area of the ports, results in an increase in the ratio of the cell limiting current to the rate at which moisture is lost from the cell. Accordingly, moisture loss as a function of electrical energy produced, is reduced.

Abstract: A barbecue grill is disclosed having a plurality of vertical leg members, a cooking vessel, a bracket for securing the vertical leg members and supporting the cooking vessel, wherein the bracket has a pair of oppositely disposed shelf attachments. Each of the shelf attachments has a pair of horizontally and vertically offset extensions with slots therein, and at least one side shelf has a pair of horizontally and vertically offset pins on opposite sides thereof adapted to slide within respective ones of the slots for selectively: 1) locking the shelf in a horizontal position; 2) pivoting the shelf downwardly from the horizontal position to a vertical position; and 3) removing the shelf from the bracket.