Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 8081670 | System and method for providing chirped electromagnetic radiation A system and method for controllably chirping electromagnetic radiation from a radiation source includes an optical cavity arrangement. The optical cavity arrangement enables electromagnetic radiation to be produced with a substantially linear chirp rate and a confi... | 12/20/2011 |
| 7953131 | Frequency synthesizer and frequency synthesizing method using optical injection locking The present invention relates to an optical frequency synthesizer and an optical frequency synthesizing method using femtosecond laser optical injection locking, which inject a femtosecond laser optical frequency comb into a diode laser, thus obtaining single-mode l... | 05/31/2011 |
| 7869473 | Directly modulated laser with isolated modulated gain electrode for improved frequency modulation A DBR laser, such as a semiconductor DBR laser is disclosed having improved frequency modulation performance. The laser includes a split gain electrode and a tuning electrode. A modulating current encoding a data signal is injected into a first section of the gain e... | 01/11/2011 |
| 7778293 | Determining and setting the frequency modulation index of a laser in a CPT frequency standard A technique for determining the modulation index of a frequency-modulated laser source from the absorption spectrum that is produced when light from the laser passes through an alkali metal vapor cell. The absorption spectrum contains a primary minimum and a number ... | 08/17/2010 |
| 7715453 | Wavelength control in phase region of semiconductor lasers Particular embodiments of the present invention relate generally to semiconductor lasers and laser scanning systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser is configured f... | 05/11/2010 |
| 7586960 | Forced wavelength chirping in semiconductor lasers Methods of controlling semiconductor lasers are provided where, the time-averaged optical spectrum of the semiconductor laser is broadened by modulating the drive current at a relatively high frequency. Generally, the frequency of the drive current modulation is hig... | 09/08/2009 |
| 7436864 | Method for optimising the calibration process of a tuneable laser A method relating to the calibration of tuneable lasers is described. The method provides for the provision of correct control currents so as to achieve each of desired output frequencies from the laser. The correct currents are determined by forming a matrix of the... | 10/14/2008 |
| 7418205 | Method and apparatus for controlling a frequency hopping laser An optical spread spectrum communication system includes a tunable laser which sequentially outputs optical signals having different wavelengths. The laser produces a frequency spectrum having a plurality of closely spaced modes relative to optical frequencies. The ... | 08/26/2008 |
| 7418014 | Surface-emitting type semiconductor laser, and method for manufacturing the same, optical switch, and optical branching ratio variable element A surface-emitting type semiconductor laser includes a substrate, a first distributed Bragg reflection type mirror formed above the substrate, an active layer formed above the first mirror, a second distributed Bragg reflection type mirror formed above the active la... | 08/26/2008 |
| 7414779 | Mode locking methods and apparatus In one aspect the invention relates to a frequency varying wave generator. The generator includes a gain element adapted to amplify a wave having a wavelength; a time varying tunable wavelength selective filter element in communication with the gain element, the tun... | 08/19/2008 |
| 7391796 | Ultra-low heat laser An ultra-low heat laser that does not rely on florescence cooling. Generally, the inventive laser includes a pump source operable at a pump frequency and a gain medium disposed to receive energy from the source and lase at a frequency close to the pump frequency. In... | 06/24/2008 |
| 7389053 | Tunable filtering of RF or microwave signals based on optical filtering in Mach-Zehnder configuration Devices and techniques for achieving signal filtering in RF or microwave frequencies by optical filtering using two separate optical paths. Each optical path may include one or more optical resonators to achieve desired optical filtering. ... | 06/17/2008 |
| 7389045 | Apparatus and method for monitoring and compensating an optical signal Optical communication apparatuses and optical communication methods are provided. According to one aspect, an optical communication apparatus includes a communication path configured to communicate a first signal; a signal generator configured to provide a second si... | 06/17/2008 |
| 7379672 | Photonic RF distribution system The present photonic RF generation and distribution system provides a system and method for distributing an RF output signal. The photonic RF distribution system includes two optical sources for generating optical signals. A first optical source (42) is opera... | 05/27/2008 |
| 7372056 | LPP EUV plasma source material target delivery system An EUV light generation system and method is disclosed that may comprise a droplet generator producing plasma source material target droplets traveling toward the vicinity of a plasma source material target irradiation site; a drive laser; a drive laser focusing opt... | 05/13/2008 |
| 7370532 | RF communications method and system for laser ultrasonic testing A system including a processor, a high-energy density system linked to the processor, and a communicator linked to the processor. The communicator comprehensively integrates a plurality of hardware and software functions associated with operating the high-energy den... | 05/13/2008 |
| 7369583 | Electrooptically wavelength-tunable resonant cavity optoelectronic device for high-speed data transfer A device contains at least one wavelength-tunable element controlled by an applied voltage and at least two resonant cavities, where the resonant wavelength of the tunable element is preferably elecrooptically tuned using the quantum confined Stark effect around the... | 05/06/2008 |
| 7369597 | Laser output light pulse stretcher Providing a high peak power short pulse duration gas discharge laser output pulse comprises a pulse stretcher a laser output pulse optical delay initiating optic diverting a portion of the output laser pulse into an optical delay having an optical delay path and com... | 05/06/2008 |
| 7365349 | EUV light source collector lifetime improvements An apparatus and method for cleaning a plasma source material compound from a plasma produced EUV light source collector optic which may comprise reacting the plasma source material compound with hydrogen to form a hydride of the plasma source material from the plas... | 04/29/2008 |
| 7362783 | Optical frequency mixing A method of generating coherent radiation, wherein a first fundamental beam of radiation from a four level laser and a second fundamental beam of radiation from a three level laser are mixed in a non-linear body to obtain an output beam at the sum frequency of the t... | 04/22/2008 |
| 7354157 | Image display device and light source device An image display device includes a laser light source, a wavelength conversion element converting a wavelength of a light beam emitted from the laser light source into a predetermined wavelength, and a light modulating device modulating the laser beam output from th... | 04/08/2008 |
| 7355191 | Systems and methods for cleaning a chamber window of an EUV light source Systems and methods are disclosed for cleaning a chamber window of an extreme ultraviolet (EUV) light source. The window may have an inside surface facing a chamber interior and an opposed outside surface and the light source may generate debris by plasma formation.... | 04/08/2008 |
| 7333526 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 02/19/2008 |
| 7329936 | Mask for sequential lateral solidification and crystallization method using thereof A method of forming a polycrystalline silicon layer includes: disposing a mask over the amorphous silicon layer, the mask having a plurality of transmissive regions, the plurality of transmissive regions being disposed in a stairstep arrangement spaced apart from ea... | 02/12/2008 |
| 7327769 | Injection locking Q-switched and Q-switched cavity dumped COlasers for extreme UV generation A CO2 laser reference oscillator (RO) can provide injection seeding to a Q-switched (QS) or Q-switched cavity dumped (QSCD) CO2 laser, where the output frequency of the RO laser is locked to the peak of the laser line by the use of appropriate ... | 02/05/2008 |
| 7324761 | Single sideband optical transmitter Described are an optical transmitter and a method for generating a single sideband optical signal. The method includes generating a data signal at a first power level and at a second power level with a predetermined ratio being defined between the power levels. The ... | 01/29/2008 |
| 7324567 | Modulation frequency tunable optical oscillator Provided is a millimeter-wave band frequency optical oscillator that can be used as an oscillation frequency signal source for a millimeter-wave forwarded to wireless subscribers from a base station of a millimeter-wave wireless subscriber communication system for a... | 01/29/2008 |
| 7321607 | External optics and chamber support system A gas discharge laser and method of operating same is disclosed which may comprise a gas discharge laser chamber support structure comprising a first support arm attached to a mounting table; a gas discharge laser chamber slideably engaging the first support arm; an... | 01/22/2008 |
| 7321427 | Multiple beam ellipsometer An ellipsometric apparatus provides two impinging focused probe beams directed to reflect off the sample along two mutually distinct and preferably substantially perpendicular directions. A rotating stage rotates sections of the wafer into the travel area defined by... | 01/22/2008 |
| 7321117 | Optical particulate sensor in oil quality detection An oil quality sensor apparatus includes a housing that includes an oil flow path through which oil flows through the housing. One or more photo-detectors can be provided in association and a plurality of light-emitting devices located within the housing and proxima... | 01/22/2008 |
| 7317536 | Spectral bandwidth metrology for high repetition rate gas discharge lasers A bandwidth meter apparatus and method for measuring the bandwidth of a spectrum of light emitted from a laser input to the bandwidth meter which may comprise an optical bandwidth monitor providing a first output representative of a first parameter which is indicati... | 01/08/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 7301972 | Apparatus, system, and method for frequency stabilized mode-locked laser A high finesse optical resonator is used to store optical pulses of a mode-locked laser. The mode-locked laser is frequency stabilized by monitoring an optical attribute of the high finesse optical resonator indicative of a difference between a center frequency of t... | 11/27/2007 |
| 7295584 | System and method for generating multi-wavelength laser source using highly nonlinear fiber A number of embodiments provide multi-Wavelength Laser Source (MWLS) designs based on Super Continuum (SC) generation using Highly Non-Linear optical Fiber (HNLF). Advantageously, in some embodiments this technology only needs a single wavelength locking mechanism t... | 11/13/2007 |
| 7295589 | Frequency modulated vertical cavity laser A frequency modulated (FM) vertical cavity surface emitting laser (VCSEL). The frequency modulated VCSEL includes a mirror region that has an active region. The frequency modulated VCSEL also includes a phase adjustment region for use in altering the characteristics... | 11/13/2007 |
| 7295582 | Thermo-optic tunable laser apparatus Thermo-optic tuning apparatuses and techniques that may be used in external cavity lasers are provided. A wavelength selection device may be placed in the external cavity and may include a thermally responsive substrate and tunable optical elements extending therefr... | 11/13/2007 |
| 7291853 | Discharge produced plasma EUV light source An DPP EUV source is disclosed which may comprise a debris mitigation apparatus employing a metal halogen gas producing a metal halide from debris exiting the plasma. The EUV source may have a debris shield that may comprise a plurality of curvilinear shield members... | 11/06/2007 |
| 7292744 | Optical connection device and optoelectronic hybrid apparatus including the same An optical connection device includes: a substrate; an optical waveguide provided in the substrate; and plural optical connection ports provided in the optical waveguide and having at least one of a light output port and a light input port, the light output port out... | 11/06/2007 |
| 7281429 | Optical hydrophone for a shock-wave field with long service life An optical hydrophone for measurement of the acoustic pressure distribution in a fluid medium has a light source that illuminates an area of a boundary region between an optically transparent body and the fluid medium. A light receiver measures the intensity of the ... | 10/16/2007 |
| 7280568 | Laser coherence control using homogeneous linewidth broadening An apparatus and method for linewidth broadening applied to a laser that emits a light having an output frequency ν and an emission linewidth δE. The apparatus is equipped with an electro-optic modulator for intercepting the light and a noise generator ... | 10/09/2007 |
