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| Number | Title | Issue Date |
| 7826130 | Device for the optical splitting and modulation of electromagnetic radiation A device for the optical splitting and modulation of monochromatic coherent electromagnetic radiation, in particular light beams and/or laser beams, contains a beam source, an acousto-optical element disposed downstream of the latter and serving for splitting the be... | 11/02/2010 |
| 7821703 | Laser drawing method and apparatus A method of laser drawing includes steps of causing laser light from a light source to be incident to an acousto-optical diffraction element, and deflecting the light incident to the element by changing a frequency of a high frequency signal to be inputted to the el... | 10/26/2010 |
| 7697195 | Apparatus for reducing wavefront errors in output beams of acousto-optic devices We disclose acousto-optic modulators that include: (a) an optical element configured to receive an input optical beam that propagates along a first direction; and (b) a transducer extending along the first direction and positioned on one or more surfaces of the opti... | 04/13/2010 |
| 7684110 | High frequency acousto-optic frequency shifter having wide acceptance angle An acousto-optic (AO) frequency shifter includes an anisotropic crystal having an optical axis and an input face, and an acoustic transducer having electrodes affixed to the face for receiving an electrical signal and projecting an acoustic wave into the crystal. Th... | 03/23/2010 |
| 7684109 | Bragg mirror optimized for shear waves In an embodiment, set forth by way of example and not limitation, a Bragg mirror includes a first bi-layer of a first thickness and a second bi-layer of a second thickness which is different from the first thickness. In this exemplary embodiment, the first bi-layer ... | 03/23/2010 |
| 7667888 | Low cost system and method that implements acousto-optic (AO) RF signal excitation An acousto-optic modulator includes an acousto-optic bulk medium. A transducer is attached to the acousto-optic bulk medium and formed as a linear array of electrodes. A transducer driver is connected to each electrode and comprises a plurality of amplifiers connect... | 02/23/2010 |
| 7595929 | Grooved backside acoustic termination of acousto-optic devices An acousto-optic device having at least one groove on the backside improves acoustic termination of the device. The grooves can be added early in device fabrication and are compatible with batch processing, thereby avoiding the separate device handling. Grooving can... | 09/29/2009 |
| 7443567 | Image enhancement of a microdisplay through acoustooptics A method of processing light includes generating a beam of light and periodically diffracting the beam of light by an acoustooptic cell to produce diffracted light having at least one direction change from the generated light. The method further includes spatially i... | 10/28/2008 |
| 7423818 | Method of suppressing distortion of a working laser beam of a laser link processing system A method of suppressing distortion of a working laser beam directed for incidence on a target specimen presented for processing by a laser link processing system uses a spatial filter to remove stray light-induced distortion from the working laser beam. ... | 09/09/2008 |
| 7421212 | Detecting and locating pulses using a Bragg cell Detecting a pulse of a signal includes receiving the signal and a light beam. The signal drives a spatial light modulator to modulate the light beam, where the complex amplitude of the modulated light beam is proportional to the signal current. The modulated light b... | 09/02/2008 |
| 7414773 | Device for dispersing light pulses of which the spectral amplitude is programmable Device for dispersion of light pulses of an optical beam constituted by two dispersive prisms with the same vertex angle, mounted head to tail, the optical input surface of the first prism being parallel to the optical output surface of the second prism, the distanc... | 08/19/2008 |
| 7405858 | Acousto-optic tunable filter control apparatus automatically adjusting frequency and power of radio frequency signal An AOTF control apparatus, which applies an RF signal to an AOTF to allow a selected light to pass through the AOTF, includes: a first calculating unit calculating a relationship between a frequency of the RF signal and a wavelength of the selected light based on a ... | 07/29/2008 |
| 7370972 | Two-dimensional image display device In a two-dimensional image display device, speckle noise is reduced by a simple construction. A two-dimensional image display device for displaying an image by projecting coherent light onto a projection plane is provided with at least one coherent light source (... | 05/13/2008 |
| 7348569 | Acceleration of charged particles using spatially and temporally shaped electromagnetic radiation A method and apparatus for accelerating charged particles are disclosed, wherein the method comprises using at least a transverse component of a temporally and spatially shaped electromagnetic field to accelerate one or more charged particles. ... | 03/25/2008 |
| 7343056 | Acoustooptic filter An acoustooptic filter 1 having an optical waveguide 3 disposed on an upper surface 2a of an acoustooptic substrate 2, an interdigital electrode 4 which excites a surface wave disposed on the acoustooptic substrate 2,... | 03/11/2008 |
| 7327896 | Testing apparatus and method for a spectral imaging system A hyperspectral imaging system is tested in the lab to allow a determination of its response to the emission from a simulated target, of certain wavelengths of radiation which the imaging system will be using during target determination. A broadband IR wavelength ge... | 02/05/2008 |
| 7302852 | Vibration measuring and monitoring system A vibration measuring and monitoring system (100) for an object (20) includes a laser unit (11), a laser sensor unit (12), and a processor (15). The laser unit is used for emitting a laser beam (13). The laser sensor unit is... | 12/04/2007 |
| 7291904 | Downsized package for electric wave device A package substrate includes signal pads provided on a main surface of the package substrate, footpads provided on a backside of the package substrate, and a sealing electrode provided on the main surface to surround the signal pads, the signal pads being electrical... | 11/06/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7283707 | Evanescently coupling light between waveguides and whispering-gallery mode optical resonators An exemplary embodiment of the present invention described and shown in the specification and drawings is a system including an optical resonator and an optical element having a periodic structure for coupling of light into the optical resonator. ... | 10/16/2007 |
| 7283290 | Acousto-optic devices having highly apodized acoustic fields and methods of forming the same An acousto-optic (AO) device for generating a highly apodized acoustic wave field includes a piezoelectric transducer crystal for emitting an acoustic wave having a ground electrode disposed on one side of the piezoelectric crystal, and a patterned electrode layer d... | 10/16/2007 |
| 7262765 | Apparatuses and methods for utilizing non-ideal light sources A method includes obtaining a measurement of a property of a light source, scanning light from the light source onto a surface, such that the light interacts with the surface, detecting light from the surface to create a picture element, and correcting the picture e... | 08/28/2007 |
| 7253950 | Scanning laser microscope A scanning laser microscope is provided which includes at least one laser light source for emitting laser light, a plurality of modulating sections for adjusting the laser light emitted from each laser light source, a storage section for storing delay time informati... | 08/07/2007 |
| 7245789 | Systems and methods for minimally-invasive optical-acoustic imaging This document discusses, among other things, an imaging guidewire that includes one or more optical fibers communicating light along the guidewire. At or near its distal end, one or more blazed or other fiber Bragg gratings (FBGs) directs light to a photoacoustic tr... | 07/17/2007 |
| 7239439 | Communication system using variable pattern acousto-optic modulation A communication system uses a beam of light; a beam expanding lens; a lens for collimating the expanded beam into a column of collimated light; a plurality of acoustic transducers to project acoustic emanations perpendicularly to the column of collimated light, wher... | 07/03/2007 |
| 7227618 | Pattern generating systems A pattern generating system for generating two-dimensional images on a surface includes a light source and one or more Zone Plate Modulator (ZPM) arrays. The ZPM arrays comprise diffractive zone plate modulating elements that are capable of either diffracting or ref... | 06/05/2007 |
| 7221503 | Fast multi-line laser confocal scanning microscope According to a first embodiment the invention provides, for achieving fast multi-wavelength scanning in an acousto-optical deflector based confocal scanning microscope, dynamically adjusting an optical path of said an acousto-optical deflector based confocal microsc... | 05/22/2007 |
| 7218433 | Scanning apparatus using a plurality of diffracted beams The present invention provides a scanning apparatus, which scans a plurality of diffracted beams, obtained by diffracting and modulating light emitted from a single light source, on a scanning object, such as the drum of a printer or sheet. ... | 05/15/2007 |
| 7206120 | Dynamic beam splitter outputting a selectable number of beams A dynamic beam splitter including a beam deflector having a plurality of operative regions, the beam deflector being operative to receive a laser beam at a first one of the plurality of operative regions, the laser beam passing through the beam deflector, and to sel... | 04/17/2007 |
| 7205501 | Laser machining method and laser machining apparatus A laser machining method and a laser machining apparatus superior in hole position accuracy and hole quality. An outgoing beam outputted as short pulses is shaped by a pulse shaping unit so as to form a #1 branch beam. The #1 branch beam is supplied to a portion to ... | 04/17/2007 |
| 7202988 | Diffractive light modulator In one embodiment disclosed, a light modulator can be configured to have a substantially flat optically active modulator element portion while deflected. The modulator can include a plurality of modulator elements arranged substantially in parallel, with each modula... | 04/10/2007 |
| 7177081 | High contrast grating light valve type device A grating light valve has with a plurality of spaced reflective ribbons are spatially arranged over a substrate with reflective surfaces. The grating light valve is configured to optimized the conditions for constructive and destructive interference with an incident... | 02/13/2007 |
| 7173687 | Lithographic apparatus, device manufacturing method, and device manufactured thereby Apparatus and methods for compensating for the movement of a substrate in a lithographic apparatus during a pulse of radiation include providing an optical structure configured to move a patterned projection beam incident on the substrate in synchronism with the sub... | 02/06/2007 |
| 7162159 | Position demodulation through polarization of the transmitted beam in an optical wireless link A method of eliminating the non-linearities associated with the remote feedback sensor, such as a quad position detector, used in a micro-electro-mechanical (MEM) mirror assembly. The incoming beam transmitted from a remote optical wireless link is first polarized, ... | 01/09/2007 |
| 7158553 | Master oscillator/power amplifier excimer laser system with pulse energy and pointing control Pulse parameters of a gas discharge laser system can be optimized and controlled for precision applications such as microlithography. Important laser pulse parameters typically vary in the beginning of a pulse burst, and the directionality of the output beam typical... | 01/02/2007 |
| 7147803 | Process for the preparation of pink light-emitting diode with high brightness The subject invention relates to yttrium aluminum garnet fluorescent powders with formula (Y3-x-yZxEuy)Al5O12 or (Y3ZxEuy)Al5O12, wherein 0 | 12/12/2006 |
| 7133186 | AOM modulation techniques employing transducers to modulate different axes Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM (60) facilitate substantially full extinction of a laser beam (90) to prevent unwanted laser energy from impinging a workpiece (80); fac... | 11/07/2006 |
| 7133187 | AOM modulation techniques employing plurality of transducers to improve laser system performance Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM (60) facilitate substantially full extinction of a laser beam (90) to prevent unwanted laser energy from impinging a workpiece (80); fac... | 11/07/2006 |
| 7133188 | AOM modulation techniques employing an upstream Bragg adjustment device Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM (60) facilitate substantially full extinction of a laser beam (90) to prevent unwanted laser energy from impinging a workpiece (80); fac... | 11/07/2006 |
| 7133182 | AOM frequency and amplitude modulation techniques for facilitating full beam extinction in laser systems Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM (60) facilitate substantially full extinction of a laser beam (90) to prevent unwanted laser energy from impinging a workpiece (80); fac... | 11/07/2006 |
