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| Number | Title | Issue Date |
| 8300303 | Acoustically focused optical lens An acoustically-focused optical lens is provided that uses acoustic transducers arranged in diametrically-opposed pairs around an exterior surface of a cylindrical tube in order to concentrate (heavier-than-water metallic) particles suspended in water within the int... | 10/30/2012 |
| 8294977 | Imaging apparatus and methods Methods, systems and apparatus for manipulating electromagnetic radiation such as laser beams. A method and apparatus for correcting magnification chromatic aberration utilizes one or more dispersive lenses such that long wavelength components are magnified less tha... | 10/23/2012 |
| 7436387 | Electrooptical device utilizing electrophoresis An electrooptical device comprises an electrooptical layer between electrodes. The electrooptical layer includes a dispersion medium and particles contained in the dispersion medium. The particles are colored a first color, while the dispersion medium is colored a s... | 10/14/2008 |
| 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 |
| 7372612 | High performance compact external cavity laser (ECL) for telecomm applications An optical tunable laser design (100) for the optic telecommunication industry is disclosed in this invention. This new design is economical, reliable, robust and with superior optical performances. The design offers broadband tunability, high output power, n... | 05/13/2008 |
| 7317417 | Methods for detection and tracking of targets The present invention relates to active sensor applications, and more particularly is directed to efficient systems and methods for detection and tracking of one or more targets. The invention provides a method for receiving signals reflected from one or more target... | 01/08/2008 |
| 7304314 | Quantum cross-ambiguity function generator A cross-ambiguity function generator (“CAF”) uses properties of quantum mechanics for computation purposes. The CAF has advantages over standard analog or digital CAF function generators, such as improved bandwidth. The CAF may be used for traditional geolocatio... | 12/04/2007 |
| 7221701 | System and method for CDMA communications A system and method for spread spectrum communication primarily for use in mobile CDMA communication systems. The system receiver has simplified architecture, comprising a channel compensator and correlation detector. The channel compensator has a channel estimator ... | 05/22/2007 |
| 7209607 | Optical space-switching matrix Optical switch matrix having at least an input matrix port defining at least a row of the matrix, a plurality of output matrix ports defining columns of the matrix, a plurality of switching elements, each one being disposed at the intersection of at least one row an... | 04/24/2007 |
| 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 |
| 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 |
| 6967764 | Optical arrangement and scan microscope An optical arrangement for spatially separating an illumination light beam and a detection light beam includes an acousto-optical component that splits the detection light beam by birefringence. A compensation element is provided that compensates, in a single passag... | 11/22/2005 |
| 6958858 | Method for scanning microscopy; and scanning microscope A method for scanning microscopy is disclosed. It contains the step of generating an illuminating light beam that exhibits at least a first substantially continuous wavelength spectrum whose spectral width is greater than 5 nm; the choosing of a second wavelength sp... | 10/25/2005 |
| 6930819 | Miniaturized external cavity laser (ECL) implemented with acoustic optical tunable filter An optical tunable laser design for the optical telecommunication industry is disclosed in this invention. This new design is economical, reliable, robust and with superior optical performances. The design offers broadband tunability, high output power, narrow laser... | 08/16/2005 |
| 6903862 | Ultraviolet acoustooptic device and optical imaging apparatus using the same The present invention provides an ultraviolet acoustooptic device including: a radio-frequency signal input part; a transducer unit for converting a radio-frequency signal into a mechanical vibration; and an acoustooptic medium whose optical characteristic varies ac... | 06/07/2005 |
| 6751009 | Acousto-micro-optic deflector An acousto-micro-optic deflector (AMOD) is provided. This device uses a special combination of an acousto-optic deflector (AOD) and a micro-optic deflector (MOD) to provide agile gimballess beam steering over large angles. The combination is driven such that the ent... | 06/15/2004 |
| 6674564 | System, method and article of manufacture for a beam splitting acousto-optical modulator A system, method and article of manufacture is disclosed that provides an improved, more efficient, laser beam modulator and splitter. The combined device includes a crystal with a horizontal cross-sectional shape of a pentagon. The crystal includes a top... | 01/06/2004 |
| 6587255 | Acousto-optic scanning system with fast non-linear scan An acousto-optic scanning system, which relies on two counter propagating acoustic waves with the same frequency modulation. This scheme completely suppresses the linear frequency chirp, and thus enables the generation of fast non-linear scans and non-con... | 07/01/2003 |
| 6577429 | Laser projection display system A display apparatus includes a laser light source for emitting a light beam having a coherence length; a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics for shaping the expanded laser beam to provide uniform illu... | 06/10/2003 |
| 6563845 | Optical modulation device The invention relates to an optical modulation device for coupling an entering radiation field (12), with which an incident radiation field (40) is divided into a transmitted branch (40T) and a diffracted branch (40B) by means of a first acousto-optical m... | 05/13/2003 |
| 6172799 | Three channel acousto-optical devices A three channel acousto-optic modulator may be used to implement a projection display or a scanner. Each of three channels are deflected differently by the modulator. The channels may correspond to the primary color planes.... | 01/09/2001 |
| 6088150 | 3-Channel light modulator and modulation method for a high power laser A 3-channel modulation system for a high power laser and a modulation method for a high power laser are disclosed herein. In a preferred implementation, the modulation system includes a laser light source, a light modulator modulating the light generated ... | 07/11/2000 |
| 6052216 | Laser and beam intensity modulation system for imagesetting device A laser beam intensity modulation system has a variable delay circuit that is used to control the relative delay in the delivery of a video signal between two cascaded AOM's. This delay circuit is controlled by a delay controller that monitors the intensi... | 04/18/2000 |
| 5937271 | Method for manufacturing a thin film actuated mirror array An inventive method for manufacturing an array of M×N thin film actuated mirrors for use in an optical projection system includes the step of: providing a substrate; depositing a thin film sacrificial layer on top of the substrate; creating an array of M... | 08/10/1999 |
| 5890789 | Multi-beam emitting device having an acoustooptic element A multi-beam emitting device which splits a light beam emitted from a light source into a plurality of beams with a beam splitter to emit a plurality of beams. As the beam splitter, an optical waveguide type acoustooptic element or the like is used. A mul... | 04/06/1999 |
| 5801874 | Optical scanning system having multi-pass acoustic traveling wave lens A folded acoustic traveling wave lens arrangement imparts multiple passes of an incident optical beam through the traveling wave lens, and thereby effectively maximize utilization of acoustic power. A lens of optically transmissive bulk material, such as ... | 09/01/1998 |
| 5768006 | Thin film actuated mirror array for use in an optical projection system An inventive array of thin film actuated mirrors is provided with an active matrix having an array of switching devices, an array of actuating structures and an array of mirrors, wherein each of the actuating structures is cantilevered on the active matri... | 06/16/1998 |
| 5682262 | Method and device for generating spatially and temporally shaped optical waveforms A method and device for shaping both the temporal and spatial profiles of an input optical pulse to generate an output optical waveform are described. The method includes the step of dispersing the spectral frequencies of the input pulse. These frequencie... | 10/28/1997 |
| 5623360 | Time delay beam formation Optical systems are disclosed which are capable of generating and rapidly changing time delays of electrical signals for true time delay beam formation and beam steering and for signal processing applications. The systems utilize an interferometer configu... | 04/22/1997 |
| 5394257 | Optical neural network system An optical system of an optical neural network model for parallel data processing is disclosed. Taking advantage of the fact that an auto-correlation matrix is symmetric with respect to a main diagonal and the weights for modulating the values of diagonal... | 02/28/1995 |
| 5390046 | Time delay beam formation Optical systems are disclosed which are capable of generating and rapidly changing time delays of electrical signals for true time delay beam formation and beam steering and for signal processing applications. The systems utilize an interferometer configu... | 02/14/1995 |
| 5363233 | Optical correlator using fiber optics lasers A plurality of fiber optic laser members are supported in an apertured plate so as to form an array supplied by an optical pump. Individual members may have the light passing there through modulated by respective modulators. Light from the fiber optic las... | 11/08/1994 |
| 5202776 | Time delay beam formation Optical systems are disclosed which are capable of generating and rapidly changing time delays of electrical signals for true time delay beam formation and beam steering. The systems utilize an interferometer configuration. A first optical modulator and a... | 04/13/1993 |
| 5191466 | High resolution two-directional optical scanner A high resolution two-directional optical scanner, comprising a source of very high frequency light pulses, a first acousto-optic cell for diffracting the light pulses towards an image plane so as to form on a predetermined area thereof a line of pixels c... | 03/02/1993 |
| 5173790 | Adaptive filter with correlation weighting structure An adaptive filter having a correlation weighting structue having a single Bragg cell, acting as a tapped delay line and having an input and an output, the Bragg cell intensity modulating a write laser beam for computing correlation values, and modulating... | 12/22/1992 |
| 5155619 | Optical AND/OR gate employing non-linear organic polymers and photovoltaic/piezoelectric optical interfaces A multi-channel/multi-layer optical gate contained within a fiber-optic housing having any number of optical cells disposed within the housing. The optical cells are made up of non-linear organic polymers surrounded by a piezoelectric crystal, which is in... | 10/13/1992 |
| 5122898 | Acousto-optical deflector An acousto-optical deflector disclosed, comprising, two crystals and two piezoelectric transducers associated respectively with the crystals and controlled by a variable frequency RF signal for generating, in the crystals, ultrasonic waves of the same fre... | 06/16/1992 |
| 4867542 | Laser exposure apparatus A laser exposure system for use in scanning and recording images, the system comprising subdividing the laser beam from the laser source into several parallel traces of laser beams; modulating the laser beams individually in response to the image signals ... | 09/19/1989 |
| 4843335 | Acoustooptic modulation device capable of avoiding impedance mismatching over a wide frequency band In an acoustooptic modulation device, a plurality of split light beams are produced from a beam splitter in response to a single incident light beam and projected onto partial modulators comprising acoustooptic mediums and transducers attached to the medi... | 06/27/1989 |
| 4776654 | Scanning optical system A scanning optical device including a rotating polygonal mirror or oscillating mirror. Two acoustooptical devices are disposed along the path between the light source and the mirror and are set for respective time-constant angles of deflection to compensa... | 10/11/1988 |
