las Method for making an elastomeric apertured web By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method for making an elastomeric apertured web comprises providing a precursor web comprising a laminate which is subjected to incremental stretching to form an elastomeric precursor web. A forming apparatus is provided comprising a first member and a second member, wherein the first member comprises a mating member, and the second member comprises teeth which are joined to the second member. The elastomeric precursor web is moved through the forming apparatus, wherein apertures are formed in the elastomeric precursor web material as the teeth on the second member penetrate the mating member forming an elastomeric apertured web. The elastomeric apertured web exhibits a WVTR of at least about 1000 g/m2/day. Full Article
las Method for producing a plastic article and blow mould for carrying out the method By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The invention relates to a method for producing a plastics material article, said method including the extruding of a tube-shaped parison and the re-forming of the parison into a hollow body within a blow mold by applying differential pressure. The method includes initially a first expanding and partial shaping of the parison with the blow mold not completely closed. Then at least one opening is provided on the circumference of the pre-expanded parison. In a further step at least one part to be built-in is introduced through the opening into the interior of the partially shaped plastics material article. In a final step the blow mold is closed completely and the blow molding of the plastics material article is completed. Full Article
las Automatic detection, removal, replacement and tagging of flash frames in a video By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method for automatically detecting, eliminating and replacing flash frames in digital video utilizes the detected flash frames to categorize and tag the surrounding frames as a relevant area of the digital video. The flash frame is detected when acquiring digital video during capture, the flash frame is replaced with a newly-constructed frame that is interpolated based upon surrounding frames and then, using the detected flash as the timestamp, the frame is tagged. Full Article
las Elastomeric particle having an electrically conducting surface, a pressure sensor comprising said particles, a method for producing said sensor and a sensor system comprising said sensors By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An elastomeric particle (1, 1, 1″) comprises a non-conducting elastomeric body (2) having an electrically conducting surface (4a, 4b, 6). Pressure sensor elements (20, 20', 20″; 30, 30', 30″, 30'″) comprising such elastomeric particles are disclosed, as well as sensor clusters (50″, 50'″, 50IV, 50V, 50VI, 50VII, 70) comprising such sensor elements. There is also disclosed a pressure sensor element (40, 40', 40″, 40'″, 40IV, 40V, 40VI, 40VII), comprising a resistive element (44, 44', 44″) providing a conduction path, a first electrode (42a, 42a-1, 42a-2, 42a-3, 42a-4, 42a-5, 42a-6), connected to the resistive element, a second electrode (42b, 42b'), which in a quiescent state is spaced from said first electrode, wherein the second electrode, when the pressure sensor element is subjected to a pressure, is arranged to contact said first electrode or said resistive element. Systems comprising such sensor elements and sensor clusters are disclosed, as well as methods of their fabrication. Full Article
las Hand tool for inserting a variety of connectors into plastic irrigation piping By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A hand tool for inserting a large variety of connector components into narrow plastic irrigation piping is disclosed. This tool is an improved and progressive development of my previous Israeli patent no: 152089 in that it is designed to work with a large variety of connector components and is designed to accommodate both sizes of narrow spaghetti piping, whereas the previous patent could accommodate only a single size of narrow piping. The tool as shown in FIG. 2 has a body onto which all the elements are connected and the body is configured to sit comfortably in the palm of the hand. When pressing down on the handle, the grips secure the narrow piping and cause a connector component, deployed in appropriate recess provided in the tool to be easily inserted into the narrow piping. Full Article
las Laser scanning unit and image forming apparatus including the same, with laser light intensity detection, adjustment, and control By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A laser scanning unit includes a laser light source, rotating polygon mirror, drive motor, and entry detection, intensity detection, intensity adjustment, and drive control portions. The laser light source radiates first and second laser lights in first second directions, respectively. The drive motor rotates the polygon mirror reflecting the first laser light. The intensity adjustment portion adjusts the first laser light in accordance with the second laser light detected by the intensity detection portion, until a second time after a first time has elapsed since the first laser light entry detection by the entry detection portion. The drive control portion, upon adjustment by the intensity adjustment portion, drives the drive motor at a first rotation speed, wherein a return light entry timing is included within the first time or from when the second time has elapsed to the timing of the entry detection portion detection. Full Article
las Surgical instrument having a plastic surface By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A surgical instrument including a handle portion, a body portion, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. At least one of the closure apparatus and a contact surface of the tool assembly include a plastic surface. The body portion extends distally from the handle portion. The movable handle is located on the handle portion and is in mechanical cooperation with a drive member. The tool assembly includes an anvil, a cartridge assembly and a contact surface. The drive beam includes a proximal engagement portion and is configured to engage a portion of the drive member. The closure apparatus is configured to engage the contact surface of the tool assembly. At least a partial actuation of the movable handle moves the closure apparatus distally into engagement with the contact surface to approximate the anvil and the cartridge assembly. Full Article
las Surgical instrument having a plastic surface By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A surgical instrument including a handle portion, a body portion, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. At least one of the closure apparatus and a contact surface of the tool assembly include a plastic surface. The body portion extends distally from the handle portion. The movable handle is located on the handle portion and is in mechanical cooperation with a drive member. The tool assembly includes an anvil, a cartridge assembly and a contact surface. The drive beam includes a proximal engagement portion and is configured to engage a portion of the drive member. The closure apparatus is configured to engage the contact surface of the tool assembly. At least a partial actuation of the movable handle moves the closure apparatus distally into engagement with the contact surface to approximate the anvil and the cartridge assembly. Full Article
las Surgical instrument having a plastic surface By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A surgical instrument including a handle portion, a body portion, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. At least one of the closure apparatus and a contact surface of the tool assembly include a plastic surface. The body portion extends distally from the handle portion. The movable handle is located on the handle portion and is in mechanical cooperation with a drive member. The tool assembly includes an anvil, a cartridge assembly and a contact surface. The drive beam includes a proximal engagement portion and is configured to engage a portion of the drive member. The closure apparatus is configured to engage the contact surface of the tool assembly. At least a partial actuation of the movable handle moves the closure apparatus distally into engagement with the contact surface to approximate the anvil and the cartridge assembly. Full Article
las Apparatus and method for driving plasma display panel to enhance display of gray scale and color By www.freepatentsonline.com Published On :: Tue, 11 Apr 2006 08:00:00 EDT The present invention relates to an apparatus and method for driving a PDP (plasma display panel). An image signal processor of the apparatus performs gamma correction and error diffusion processes of input image signals. A quantization error compensator compensates quantization errors with respect to an automatic power control (APC) level of image data output from the image signal processor. An error diffuser sets part of the image data output from the quantization error compensator as display errors and diffuses the display errors to peripheral pixels. A memory control and address driver generates sub-field and address data corresponding to image data that have undergone error diffusion by the error diffuser, and applies the data to the PDP. An APC and sustain/scan pulse generator generates a sub-field arrangement structure according to the APC level, generates control signals based on the generated sub-field arrangement, and applies the control signals to the PDP. Full Article
las Laser-welded joint structure between insulation frame and bearing cup of fan and method of forming same By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A laser-welded joint structure between insulation frame and bearing cup of fan includes a base having a bearing cup and a stator having at least one insulation frame. The insulation frame includes a sleeve portion defining a bore axially extending therethrough. The sleeve portion is provided on an inner wall surface with at least one pressing section that radially projects into the bore to press a lower side against an upper end of the bearing cup and a bearing received therein. A portion of at least one lateral side of each pressing section that is in contact with the upper end of the bearing cup is melted by laser beam to form a laser-welded joint, so that the insulation frame and the bearing cup are integrally connected together at reduced manufacturing cost and have increased structural strength. A method of forming the laser-welded joint structure is also disclosed. Full Article
las Method and apparatus for controlling flash By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A method and an apparatus for controlling a flash are disclosed. The method includes obtaining a statistical gray value of a preview image. If the statistical gray value of the preview image is less than a preset threshold, a corresponding fill light parameter is searched for in a preset dynamic fill light table according to the statistical gray value of the preview image and the fill light drive current is set according to the fill light parameter. The fill light drive current is configured to drive a flash lamp to fire a pre-flash. A corresponding exposure drive current in the preset exposure parameter table is configured according to the fill light parameter and the exposure drive current is configured to drive the flash lamp to flash. Full Article
las Imaging apparatus, flash device, and control method thereof By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An imaging apparatus for performing wireless communication with an external device. An instruction transmitting unit transmits an operation instruction to the external device. A response signal receiving unit receives a response signal from the external device. A first controlling unit starts a first operation relating to an imaging process in a case that a first time passes from a point of receiving the response signal by the response signal receiving unit. The external device executes a second operation relating to the imaging process in a case that a second time passes from a point of transmitting the response signal from the external device to the imaging apparatus. Full Article
las Convertible flash bag By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A modifiable enclosure that can be used to house an object and can be adapted and connected to the object to aid in directing a stream of light emanating from the object. The modifiable enclosure can include a first panel with a connecting element extending substantially about a periphery thereof and a second panel with connecting element extending substantially about a periphery thereof that is releasably fastenable to the connecting element extending substantially about a periphery of the first panel. Full Article
las All fiber passively Q-switched laser By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Embodiments relate to an all fiber passively Q-switched laser. The laser includes a large core doped gain fiber having a first end. The large core doped gain fiber has a first core diameter. The laser includes a doped single mode fiber (saturable absorber) having a second core diameter that is smaller than the first core diameter. The laser includes a mode transformer positioned between a second end of the large core doped gain fiber and a first end of the single mode fiber. The mode transformer has a core diameter that transitions from the first core diameter to the second core diameter and filters out light modes not supported by the doped single mode fiber. The laser includes a laser cavity formed between a first reflector positioned adjacent the large core doped gain fiber and a second reflector positioned adjacent the doped single mode fiber. Full Article
las Broadband short pulse fiber lasers capable of generating output spectra broader than gain bandwidth By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Implementations and examples of fiber lasers based on fiber laser cavity designs that produce self-similar pulses (“similaritons”) to achieve a pulse spectral bandwidth greater than a gain spectral bandwidth based on a spectral broadening fiber segment and a spectral filter to ensure the proper similariton conditions. Full Article
las Multi-color harmonic synthesized laser system for laser processing and laser processing method using multi-color harmonic synthesized laser By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A multi-color harmonic synthesized laser system for laser processing and a laser processing method using multi-color harmonic synthesized laser are disclosed. The multi-color harmonic synthesized laser system includes a laser source for providing a single laser wave, a converter for converting the single laser wave into a plurality of harmonic waves with different frequencies, and a modulating unit for modulating amplitudes and relative phases of the harmonic waves to form a plurality of modulated harmonic waves, so as to synthesize the modulated harmonic waves as a single synthesized laser wave, wherein the single synthesized laser wave is focused on an object to perform a laser processing. The converter includes a plurality of non-linear crystals for converting the single laser wave into a fundamental harmonic wave and a plurality of multi-frequency harmonic waves. The harmonic waves are coherent and collinear, and the phases of the harmonic waves are related to one another. Full Article
las Methods of modulating microlasers at ultralow power levels, and systems thereof By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A microlaser system includes an optical source, a microlaser, an actuator switch, and a photovoltaic power source. The microlaser, which includes a control element, is optically pumped by at least a portion of light emitted by the optical source. The actuator switch is configured to be activated by a triggering event. Furthermore, the photovoltaic power source is coupled in a series connection with the actuator switch and the control element, the series connection configured to connect the photovoltaic power source to the control element of the microlaser when the actuator switch is activated by the triggering event. Full Article
las Temperature measurement and control for laser and light-emitting diodes By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The existing diodes in an LED or laser diode package are used to measure the junction temperature of the LED or laser diode. The light or laser emissions of a diode are switched off by removing the operational drive current applied to the diode package. A reference current, which can be lower the operational drive current, is applied to the diode package. The resulting forward voltage of the diode is measured using a voltage measurement circuit. Using the inherent current-voltage-temperature relationship of the diode, the actual junction temperature of the diode can be determined. The resulting forward voltage can be used in a feedback loop to provide temperature regulation of the diode package, with or without determining the actual junction temperature. The measured forward voltage of a photodiode or the emissions diode in a diode package can be used to determine the junction temperature of the emissions diode. Full Article
las Low inductance laser diode bar mount By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The laser mount arrangement can have a laser bar and a driver positioned adjacent to one another and secured against a connection face of a heat sink base. The heat sink base is connected to and forms a first electrical connection between the laser bar and the driver. A second electrical connection is also provided between the laser bar and the driver opposite the heat sink base, which can be in the form of a flexible metal sheet with a narrow upward fold. This arrangement can provide a low inductance path for the current. Full Article
las Conduction cooled high power semiconductor laser and method for fabricating the same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A conduction cooled high power semiconductor laser and a method for fabricating the same are provided. The conduction cooled high power semiconductor laser comprises a heat sink (2) and one or more semiconductor laser units (1). The semiconductor laser unit consists of a laser chip (3), a substrate (4) bonded to the laser chip for heat dissipation and electrical connection, and an insulation plate (5) soldered to the substrate for insulation and heat dissipation. The semiconductor laser unit is soldered on the heat sink with the insulation plate therebetween. The semiconductor laser unit may be tested, aged, and screened in advance, and thereby the yield of the lasers can be improved and the manufacturing costs can be reduced. The laser has desirable heat dissipation performance, high reliability, and is applicable to high temperature and other complex and volatile environments. Full Article
las Circuitry and method for driving laser with temperature compensation By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit, configured to generate a second current based on a first current and a temperature-independent current; and a modulation current generating circuit, configured to generate a modulation current based on the second current, and calibrate optical power output of the laser component based on the modulation current. The first current is proportional to the absolute temperature. The second current and the first current have a slope relative to the absolute temperature respectively, and the slope of the second current relative to the absolute temperature is larger than of the slope of the first current relative to the absolute temperature. Full Article
las Laser optic protection By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The specification and drawings present an apparatus and a method for protecting lasers or other sources of high optical power from damage due to external sources of contamination using a concept of a sacrificial optical component and automatic laser shutdown based on a pressure indication of a substantial damage to the sacrificial optical component such as puncturing through that component. Full Article
las Echelle diffraction grating and its manufacturing method, excimer laser and its manufacturing method By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A manufacturing method for an excimer laser that includes a reflective Echelle diffraction grating includes obtaining information of a wavelength of a light source, a blazed order, a repetitive pitch of the grating, a material of the grating, and a predefined orientation ratio B/A that is a ratio between that a diffraction efficiency A of the blazed order and a diffraction efficiency Bb of an order lower by one order than the blazed order, and determining an initial value of a blaze angle based upon these pieces of information. Full Article
las Vibration resistant optically pumped semiconductor laser By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An intra-cavity frequency doubled OPS-laser includes a laser-resonator terminated by a plane mirror and a mirror-structure of an OPS-chip. The resonator is folded by three fold-mirrors. The fold-mirrors are supported on a vibration-isolation plate supported by isolation posts above a base-plate. The plane mirror and the mirror-structure of the OPS-chip are mounted back to back on opposite parallel surfaces of a mounting block. The mounting-block is supported on the base-plate and extends through an aperture in the vibration-isolation plate. Movement of the vibration-isolation plate with respect to the base-plate does not change the resonator length. Full Article
las Slab amplification device, laser apparatus, and extreme ultraviolet light generation system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An EUV light generation system includes a driver laser comprising a master oscillator such as a semiconductor laser, a spatial filter, gas slab amplification devices, relay optical systems, and high-speed axial-flow amplifiers. The slab amplification devices include beam adjusting optical units disposed, respectively, at input and output sides of the slab amplifiers SA to convert the beam profile and/or polarization direction and/or an elongated direction of the beam profile with the slab amplifiers is parallel to a free space axis AF of the slab waveguides, i.e. parallel to the discharge electrodes. Full Article
las High power single mode ytterbium fiber laser system with single mode neodymium fiber pump source By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A high power fiber laser system emitting a substantially diffraction limited beam with a Gaussian intensity profile includes a single mode (“SM”) neodymium fiber pump source outputting a SM pump light; a seed laser operative to emit a SM signal light at a wavelength greater than that of the pump light; a SM DWM receiving and multiplexing the SM pump and signal lights. The disclosed system further includes a booster fiber amplifier which is configured with a frustoconically-shaped ytterbium (“Yb”) doped core receiving the pump and signal lights and configured with a small diameter input end which supports only a SM and a large diameter output end which is capable of supporting the SM and high order modes (:HOM”). The booster further has a cladding surrounding and coextending with the core, the core being configured for having intensity profiles of respective SMs of pump and signal lights overlap one another so that an overlap integral substantially equals to one (1) along an entire length of the core. The SM of the light signal extracts substantially the entire energy from the pump mode leaving the HOMs without amplification necessary to affect a quality of the diffraction limited beam of the system in a MW peak power range and hundreds of watt average power range. Full Article
las Grating external-cavity semiconductor laser and quasi-synchronous tuning method thereof By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method for quasi-synchronous tuning of wavelength or frequency of grating external-cavity semiconductor laser and a corresponding semiconductor laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (Pq) as rotation center, so as to achieve the frequency selections by grating and resonance cavity in quasi-synchronous tuning, wherein the angle of the line between the quasi-synchronous tuning point (Pq) and a conventional synchronous tuning point (P0) with respect to the direction of light incident on the grating is determined according to the angle difference between the incidence angle and diffraction angle of light on the grating. According to present invention, approximately synchronous tuning of laser is achieved with a simple and flexible design. Full Article
las Obtaining narrow line-width, full C-band tunability mirror for monolithic or hybrid integrated lasers By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An apparatus comprising an optical medium, a power splitter coupled to the optical medium, a first delay line coupled to the power splitter such that the power splitter is positioned between the first delay line and the optical medium, a first comb reflector coupled to the first delay line such that the first delay line is positioned between the first comb reflector and the power splitter, and a second comb reflector coupled to the power splitter but not the first comb reflector and not the first delay line. A method comprising receiving an optical signal, splitting the optical signal into a first split optical signal and a second split optical signal, delaying the first split optical signal, tuning the delayed first split optical signal, tuning the second split optical signal, and delaying the tuned second split optical signal. Full Article
las Method for fabricating group-III nitride semiconductor laser device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method for fabricating a group-III nitride semiconductor laser device stably supplies laser cavity mirrors having a low lasing threshold current through the use of a semi-polar plane. A blade 5g is forced down through a first region ER1 to keep the first region ER1 squeezed between a support member H2 and a movable member H1 together with a part of a protective sheet TF in contact with the first region ER1 while the tension generated in the area of the protective sheet TF in contact with the first region ER1 with the movable member H1 increases until the semi-polar principal surface SF at an end face EG1 of the first region ER1 tilts by a deflection angle THETA from the semi-polar principal surface SF of a second region ER2, and a force is thereby generated in the first region ER1 in a direction opposite to the direction of travel of the blade 5g toward the first region ER1. For example, an angle ALPHA is within the range of 71 degrees to 79 degrees, and the deflection angle THETA is within the range of 11 to 19. Full Article
las Semiconductor laser By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A semiconductor laser includes a semiconductor nanowire of a first conductivity type provided over a substrate, a light emitting layer provided around the semiconductor nanowire and insulated at an upper end and a lower end thereof, a cladding layer of a second conductivity type different from the first conductivity type, the cladding layer being provided at an outer periphery of the light emitting layer, a first electrode electrically coupled to an end portion of the semiconductor nanowire, a second electrode electrically coupled to an outer periphery of the cladding layer, a first reflection mirror provided at a one-end portion side of the semiconductor nanowire, and a second reflection mirror provided at the other end portion side of the semiconductor nanowire. Full Article
las Efficient third-order distributed feedback laser with enhanced beam pattern By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A third-order distributed feedback laser has an active medium disposed on a substrate as a linear array of segments having a series of periodically spaced interstices therebetween and a first conductive layer disposed on a surface of the active medium on each of the segments and along a strip from each of the segments to a conductive electrical contact pad for application of current along a path including the active medium. Upon application of a current through the active medium, the active medium functions as an optical waveguide, and there is established an alternating electric field, at a THz frequency, both in the active medium and emerging from the interstices. Spacing of adjacent segments is approximately half of a wavelength of the THz frequency in free space or an odd integral multiple thereof, so that the linear array has a coherence length greater than the length of the linear array. Full Article
las Transverse pumped laser amplifier architecture By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An optical gain architecture includes a pump source and a pump aperture. The architecture also includes a gain region including a gain element operable to amplify light at a laser wavelength. The gain region is characterized by a first side intersecting an optical path, a second side opposing the first side, a third side adjacent the first and second sides, and a fourth side opposing the third side. The architecture further includes a dichroic section disposed between the pump aperture and the first side of the gain region. The dichroic section is characterized by low reflectance at a pump wavelength and high reflectance at the laser wavelength. The architecture additionally includes a first cladding section proximate to the third side of the gain region and a second cladding section proximate to the fourth side of the gain region. Full Article
las Laser based frequency standards and their applications By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same. Full Article
las Method to tune emission wavelength of semiconductor laser diode By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method to tune an emission wavelength of a laser diode (LD) finely is disclosed. The method first controls a temperature of the etalon filter in T1 or T2, where the transmittance of the etalon filter becomes 40 to 50%, assuming a height between the peak and the bottom of the periodic transmittance to be 100%, at the grid wavelength λ1 or λ2, respectively. Then, the temperature of the LD is adjusted such that the intensity of light emitted from the LD and transmitted through the etalon filter becomes 40 to 50%. Full Article
las High-power low-loss GRINSCH laser By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A GRINSCH laser having an asymmetric configuration wherein the optical confinement is weighted more to the n-doped multilayer section than to the p-doped multilayer section. The GRINSCH laser can emit laser light at a wavelength λ=976 nm over a broad area with a beam power of 11.4 W at a 12 A bias current at a temperature of 20° C. Fabry-Perot and distributed Bragg reflector GRINSCH laser configurations are disclosed. Full Article
las III-V photonic crystal microlaser bonded on silicon-on-insulator By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Novel methods and systems for miniaturized lasers are described. A photonic crystal is bonded to a silicon-on-insulator wafer. The photonic crystal includes air-holes and can include a waveguide which couples the laser output to a silicon waveguide. Full Article
las Laser converter for emitting a green laser By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention provides a laser converter for converting a laser radiation of shorter wavelength to a laser radiation of longer wavelength using a single stage conversion. The laser converter comprises a laser diode for emitting a laser radiation in a first wavelength range, a cylindrical microlens for transferring and focusing the laser radiation to a laser chip and the laser chip for absorbing the laser radiation and emitting the laser radiation in a second wavelength range. Full Article
las Surface emitting laser, surface emitting laser array, and optical apparatus having surface emitting laser array By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT There is provided a surface emitting laser allowing a direction of a far-field pattern (FFP) centroid to be inclined from a normal direction of a substrate providing the surface emitting laser, comprising: a substrate; a lower reflecting mirror, an active layer, an upper reflecting mirror stacked on the substrate; and a surface relief structure located in an upper portion of a light emitting surface of the upper reflecting mirror, the surface relief structure being made of a material allowing at least some beams emitted from the surface emitting laser to be transmitted therethrough, a plurality of regions having a predetermined optical thickness in a normal direction of the substrate being formed in contact with other region in an in-plane direction of the substrate, and a distribution of the optical thickness in the in-plane direction of the substrate is asymmetric to a central axis of the light emitting regions. Full Article
las Tunable external resonator laser By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Disclosed is an ASE-free continuously tunable external resonator laser in which reduction in tuning range and decrease in output are suppressed. The external resonator laser comprises: a fixed support body which has a half mirror that partially reflects incident light and partially transmits incident light fixed therein; and a rotatory support body which is rotatably supported by the fixed support body by way of a shaft, and which has a laser chip that emits light, a collimator lens that collimates light emitted from the laser chip, and a diffraction grating that diffracts light emitted from the laser chip, fixed therein. Full Article
las Brightness multi-emitter laser diode module and method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Improved brightness and feedback multi-emitter laser diode modules and methods are provided. A plurality of laser diode emitters emit broad-area light beams in a beam direction. In cross-section, each beam is broad in its slow axis and narrow in its fast axis. Groups of downstream optical components collimate, shape, stack and direct the beams along a light path towards a beam spot (which may be fiber-coupled). After collimating, stacking and directing, the beams are Fourier transformed in the fast-axis through a lens feature having a fast-axis focal length less than about 3 millimeters. In some embodiments, the fast-axis focal length is between about 0.1 and 2.0 millimeters. Astigmatism may be introduced between the fast axis and the slow axis in the beams upstream of the lens feature and in accordance with the fast axis focal length of the lens feature. The emitters may receive feedback including wavelength locking feedback. Full Article
las Hybrid laser light sources for photonic integrated circuits By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A light source for a photonic integrated circuit may comprise a reflection coupling layer formed on a substrate in which an optical waveguide is provided, at least one side of the reflection coupling layer being optically connected to the optical waveguide; an optical mode alignment layer provided on the reflection coupling layer; and/or an upper structure provided on the optical mode alignment layer and including an active layer for generating light and a reflection layer provided on the active layer. A light source for a photonic integrated circuit may comprise a lower reflection layer; an optical waveguide optically connected to the lower reflection layer; an optical mode alignment layer on the lower reflection layer; an active layer on the optical mode alignment layer; and/or an upper reflection layer on the active layer. Full Article
las Anchoring inserts, electrode assemblies, and plasma processing chambers By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A showerhead electrode is provided where backside inserts are positioned in backside recesses formed along the backside of the electrode. The backside inserts comprise a tool engaging portion. The tool engaging portion is formed such that the backside insert further comprises one or more lateral shielding portions between the tool engaging portion and the threaded outside diameter to prevent a tool engaged with the tool engaging portion of the backside insert from extending beyond the threaded outside diameter of the insert. Further, the tool engaging portion of the backside insert comprises a plurality of torque-receiving slots arranged about the axis of rotation of the backside insert. The torque-receiving slots are arranged to avoid on-axis rotation of the backside insert via opposing pairs of torque-receiving slots. Full Article
las Plastic product with insert By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A device for joining a plastic part to a second part with an insert adapted to thread into the plastic part. The insert includes a longitudinal body with outer threads, a hole in the longitudinal body with female threads, and an annular flange. Protrusions and recesses on the bottom of the annular flange alternate in a radial pattern. The insert is threaded into an opening in the plastic part. The protrusions and recesses of the insert interact with the plastic part to resist over rotation of the insert. The opening in the plastic part may include a hole and a counter bore portion. The counter bore includes protrusions and recesses. The protrusions and recesses alternate in a radial pattern. When the insert is threaded into the opening, the protrusions and recesses of the insert interact with the protrusions and recesses of the plastic part and resist over rotation. Full Article
las Connecting arrangement between a plastic component and another structural element By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A connecting arrangement is provided between a plastic component with at least two mutually adjacent and at least approximately parallel walls and another structural element, having at least one force-transmission element which is adhesively bonded to the plastic component via an adhesive bond on the plastic component in frusto-conical or spherical-segment-shaped depressions in the mutually adjacent walls of the plastic component. The force-transmission element has a carrying structure for the other structural element. With the exception of a possibly provided coating, the force-transmission element is composed only of metallic material and has a plate which is adapted to the depression in the outer wall of the plastic component, which outer wall is adjacent to the other structural element. The edge of the plate rests with interposition on the outer wall in the surrounding region of the depression, wherein the plate is connected via a web to an end section of the force-transmission element, which end section is adapted to the depression in the other inner wall of the plastic component. The depression is configured in the outer wall without a bottom to such an extent that the end section of the force-transmission element can be inserted through the outer wall into the recess of the inner wall. Full Article
las Multi-threshold flash NCL circuitry By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Multi-threshold flash Null Convention Logic (NCL) includes one or more high threshold voltage transistors within a flash NCL gate to reduce power consumption due to current leakage by transistors of the NCL gate. High-threshold voltage transistors may be added and/or may be used in place of one or more lower voltage threshold transistors of the NCL gate. A high-Vt device is included in the pull-up path to reduce power when the flash NCL logic gate is in the null state. Full Article
las Maskless hybrid laser scribing and plasma etching wafer dicing process By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Maskless hybrid laser scribing and plasma etching wafer dicing processes are described. In an example, a method of dicing a semiconductor wafer having a front surface with a plurality of integrated circuits thereon and having a passivation layer disposed between and covering metal pillar/solder bump pairs of the integrated circuits involves laser scribing, without the use of a mask layer, the passivation layer to provide scribe lines exposing the semiconductor wafer. The method also involves plasma etching the semiconductor wafer through the scribe lines to singulate the integrated circuits, wherein the passivation layer protects the integrated circuits during at least a portion of the plasma etching. The method also involves thinning the passivation layer to partially expose the metal pillar/solder bump pairs of the integrated circuits. Full Article
las Plasmid vector, method for detecting gene promoter activity, and assay kit By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT According to one embodiment, a first gene encodes a reporter protein. The first gene is disposed at the downstream of the gene promoter. A second gene is disposed at the downstream of the gene promoter and encodes a replication origin-binding protein. An internal ribosome entry site is disposed between the first gene and the second gene. The transcription termination signal sequence encodes a signal for terminating the transcription of the first gene and the second gene. A replication origin sequence is recognized by the replication origin-binding protein. Full Article
las Premium class aircraft passenger suite By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A premium class passenger suite that includes a main seat positioned in the suite together with separate bed. The bed has a flexible mattress of predetermined dimensions and is movable between a stowed position to one side of the main seat and a deployed position above and separate from the main seat. A drive apparatus is provided for driving the bed between the stowed and deployed positions. The main seat is configured to be movable between a seating position when the bed is stowed, and a stowed position with a lowered seat back when the bed is deployed for use. Full Article
las Method and apparatus for compressing plasma to a high energy state By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A compressor assembly and the method of using the same which includes an elongated spiral passageway within which a compact toroid plasma, such as a compact toroid plasma structure, can be efficiently compressed to a high-energy state by compressing the compact toroid plasma structure by its own momentum against the wall of the spiral passageway in a manner to induce heating by conservation of energy. The compressor assembly also includes a burn chamber that is in communication with the spiral passageway and into which the compressed compact toroid plasma structure is introduced following its compression. Full Article