| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359285000 | Acousto-optic | 26 |
| 20080304133 | Photoelastic Modulator System - A photoelastic modulator (PEM) has two parts ( | 12-11-2008 |
| 20090073538 | Acousto-optical laser scanner and UV laser analyzer of micro-objects based on it - Two-coordinate AO laser scanner for 355 and 266-nm UV wavebands utilizing AO cells with specially shaped TeO | 03-19-2009 |
| 20090147344 | INTEGRATED HIGH EFFICIENCY MULTI-STAGE ACOUSTO-OPTIC MODULATOR - An acousto-optic modulator for a Q-switch ( | 06-11-2009 |
| 20090257107 | Device for controlling light radiation - Device for controlling light radiation, which is excited in a specimen and/or which is backscattered and/or reflected and which contains one or more wavelengths, at a plurality of light outlets, wherein a separation of the light radiation into differently polarized components is carried out; and the components of the excitation radiation and/or detection radiation are affected in their polarization by means of a preferably birefringent, preferably acousto-optic or electro-optic medium, which changes the ordinary and extraordinary refractive index. | 10-15-2009 |
| 20100053725 | ACOUSTO-OPTICAL COMPONENT - An acousto-optical component is suggested, in particular for use in the beam path of an optical arrangement, preferably of a microscope, with a crystal for the passage of light. Sound waves are generated via an electrical transducer and passed through the crystal. The sound waves passing through the crystal affect the optical properties of the crystal and therefore the light passing through the crystal. For exerting a variable influence on the light passing through the crystal, the sound waves passing through the crystal, or the acoustic field in the crystal, are/is variable. | 03-04-2010 |
| 20100149619 | Device for Correcting the Wavelength Dependence in Diffraction-Based Optical Systems - A device for correcting the wavelength dependence in diffraction-based optical systems in which certain orders of diffraction are filtered is disclosed, comprising at least one diffractive optical spatial light modulator that has controllable structures, and at least one light source for illuminating the spatial light modulator. Associated orders of diffraction are created which, depending on the wavelength, have a lateral chromatic offset relative to the position of the different extensions thereof on a filter plane defined by the focal length of a downstream optically focusing system, the lateral chromatic offset being in relation to the normal line to the surface of the spatial light modulator. The equinumerous orders of diffraction of different wavelengths overlap to an sufficient extent on a predefined filter plane in relation to both the direction and the extension thereof. | 06-17-2010 |
| 20120092746 | OSCILLATOR-AMPLIFIER DRIVE LASER WITH SEED PROTECTION FOR AN EUV LIGHT SOURCE - As disclosed herein, in a first aspect, a device may comprise: an oscillator producing a light output on a beam path; a target material for interaction with light on the beam path at an irradiation site; a beam delay on the beam path the beam delay having a beam folding optical arrangement; and a switch positioned along the beam path and interposed between the oscillator and the beam delay; the switch closable to divert at least a portion of light on the beam path from the beam path, the switch having close time, t | 04-19-2012 |
| 20120134006 | METHOD FOR REDUCING SPECKLE PATTERN IN DISPLAY IMAGES - A display system includes a coherent light source that can emit a coherent light beam, a de-speckling device configured to distort a wavefront of the coherent light beam to produce a distorted coherent light beam, and a two-dimensional array of light modulators that can selectively modulate the distorted coherent light beam to select a plurality of pixels for display. | 05-31-2012 |
| 20120154895 | OPTICAL SYSTEM FOR GENERATING A LIGHT BEAM FOR TREATING A SUBSTRATE - An optical system for generating a light beam for treating a substrate in a substrate plane is disclosed. The light beam has a beam length in a first dimension perpendicular to the propagation direction of the light beam and a beam width in a second dimension perpendicular to the first dimension and also perpendicular to the light propagation direction. | 06-21-2012 |
| 20120300281 | METHOD AND APPARATUS FOR RESONANT GAS PHASE ACOUSTO-OPTIC MODULATION - A method and apparatus for resonant gas phase optical phase modulation is disclosed. The method may include passing a laser beam longitudinally through a tube open to air at both ends and setting air inside the tube into resonant acoustic oscillation, thereby temporally modulating the refractive index of the air, which temporally modulates the optical phase of the laser beam. | 11-29-2012 |
| 20130083389 | Laser Doppler Velocimeter Optical Electrical Integrated Circuits - A photonic integrated circuit and related method are presented. A photonic integrated circuit comprises a source of radiation, one or more optical amplifiers, a transceiver, and optical waveguides. The optical waveguides couple light between the source of radiation, the one or more optical amplifiers, and the transceiver. The one or more optical amplifiers are configured to increase an optical power of the light up to at least 10 mW. The photonic integrated circuit may be used to perform laser Doppler velocimeter type measurements. | 04-04-2013 |
| 20130155485 | ACOUSTO-OPTIC DEVICE WITH ELECTRODE HAVING DIFFERENT TRANSVERSE EDGE POSITIONS - An acousto-optic (AO) device includes an AO interaction crystal for receiving and propagating a light ray along an optical propagation direction (OPD). A piezoelectric transducer is on at least one surface of the AO interaction crystal for receiving an electrical signal and emitting an acoustic wave into the AO interaction crystal. An electrode is on the piezoelectric transducer for coupling the electrical signal to the piezoelectric transducer. The electrode is a patterned electrode that includes a plurality of different transverse edge positions. The plurality of different transverse edge positions span a position range of at least five percent of an average height (H | 06-20-2013 |
| 20140092463 | STRUCTURED ILLUMINATION APPARATUS, STRUCTURED ILLUMINATION MICROSCOPY, AND STRUCTURED ILLUMINATION METHOD - A structured illumination apparatus includes a light modulator being disposed in a light path of an exit light flux from a light source, and in which a sonic wave propagation path is arranged in a direction traversing the exit light flux; a driving unit generating a sonic standing wave in the sonic wave propagation path by giving a driving signal for vibrating a medium of the sonic wave propagation path to the light modulator; an illuminating optical system making at least three diffracted lights of the exit light flux passed through the sonic wave propagation path to be interfered with one another, and forming interference fringes of the diffracted lights on an observational object; and a controlling unit controlling a contrast of the interference fringes by modulating a phase of at least one diffracted light among the diffracted lights in a predetermined pitch. | 04-03-2014 |
| 20140376078 | SCANNING OPTICAL MICROSCOPE - A scanning optical microscope includes a light source, a light converging optical system, a stage, a scanning unit which displaces an illumination light and the stage relatively, a detecting optical system, and a photodetector. A light modulation element and a relay optical system are disposed on the light converging optical system side of the light source, and a modulated signal having only amplitude changed is input to the light modulation element, and the light modulation element is positioned such that the illumination light emerged from the light modulation element with respect to the modulated signal of a predetermined amplitude coincides with an optical axis of the light converging optical system, and a position of a pupil of the light converging optical system and a position of the light modulation element are conjugate through at least the relay optical system. | 12-25-2014 |
| 20160072251 | Optical Systems - An optical system comprises an optical apparatus arranged to direct received light to different paths and to provide a first signal and a second signal, said first and second signals having an optical difference therebetween sufficient for distinguishing optical signals, an amplifier in optical communication with the optical apparatus for amplifying the first and second signals, and a discrimination device to receive amplified light and to provide output light responsive to the optical difference. | 03-10-2016 |
| 20160097942 | ACOUSTIC ABSORBER HAVING A ROUGHENED SURFACE FOR AO DEVICES - An acousto-optic (AO) device includes an AO crystal having a plurality of faces including a first face and a second face. An input transducer bonded to the first face (top electrode) for receiving a radio frequency (RF) signal and launching bulk acoustic waves (BAWs) configured to interact with an optical beam propagating in the AO crystal, wherein the BAWs are received at least in part by the second face after interacting with the optical beam. The second face has a roughened surface portion over an area of at least (≧) 50% of an area of the top electrode, and a root mean square (rms) surface roughness ≧1 μm and a surface profile derivable from a Fourier transform which provides at least one a first spatial frequency peak from 1 cycle/mm to 300 cycles/mm or at least one band of spatial frequency peaks from 1 cycle/mm to 300 cycles/mm. | 04-07-2016 |
| 359286000 | Amplitude modulation | 2 |
| 20080247027 | RF PHASE MODULATION TECHNIQUE FOR PERFORMING ACOUSTO-OPTIC INTENSITY MODULATION OF AN OPTICAL WAVEFRONT - An acousto-optic modulator includes an acousto-optic bulk medium and transducer attached to the acousto-optic bulk medium and formed as a linear array of electrodes. A transducer driver is connected to each electrode and is coherently phase driven to alter the angular momentum distribution of an acoustic field and alternately allow and inhibit phase matching between the optical and acoustic field and produce a desired intensity modulation of an optical wavefront. | 10-09-2008 |
| 20140240812 | ACOUSTO-OPTIC DEVICE, AND LIGHT MODULATOR, OPTICAL SCANNER AND DISPLAY APPARATUS USING THE ACOUSTO-OPTIC DEVICE - Provided is an acousto-optic device including an elastic medium; a meta structure formed on a first surface of the elastic medium, and an elastic-wave generating unit which generates an elastic wave in the elastic medium. The meta structure includes a first layer and a second layer that is formed on the first layer. The at least one of the first layer and the second layer includes a predetermined repetitive pattern. | 08-28-2014 |
| 359287000 | Frequency modulation | 8 |
| 20080225376 | Acousto-optic modulators for modulating light signals - Devices for modulating light signals. A modulator includes a rolled optical fiber cable having a preset tensile stress along the longitudinal axis thereof, a coating layer applied to the rolled optical cable, and at least one piezo acoustic transducer secured to the coating layer. The piezo acoustic transducer is operative to generate a sound wave that modulates a frequency of a light signal passing through the rolled optical fiber cable. | 09-18-2008 |
| 20100134867 | ACOUSTO-OPTICAL TUNABLE FILTER ELEMENT - An acousto-optical filter element ( | 06-03-2010 |
| 20110304900 | ACOUSTO-OPTICAL SYSTEM, MICROSCOPE AND METHOD OF USE OF THE ACOUSTO-OPTICAL SYSTEM - An acousto-optical system is described comprising at least one acousto-optical element having at least one transducer that is attached to a crystal, a driver unit for generating at least one acoustic signal for driving acousto-optical elements modifying light transmitted through the acousto-optical element and comprising at least one digital data processing unit, at least one digital-to-analog converter transforming the digital combination signal into an initial analog driver signal, and an amplifier for amplifying the initial analog driver signal to become said analog electronic driver signal. Further, a microscope and a method of operating the acousto-optical element is are described. Various objectives are achieved like more flexibility, real time compensation for non-linearity and reducing the number, size, costs and energy consumption of electronic components. | 12-15-2011 |
| 20120134007 | ACOUSTO-OPTICAL TUNABLE FILTER ELEMENT - An acousto-optical filter element ( | 05-31-2012 |
| 20120147450 | OPTICAL ARRANGEMENTS FOR IMAGING INCLUDING AN ACOUSTO-OPTIC TUNABLE FILTER AND AT LEAST ONE PETZVAL LENS COMBINATION - An optical combination includes an input lens having an optical axis for receiving incoming rays, an output Petzval lens combination including spaced apart doublet lenses L | 06-14-2012 |
| 20130250395 | COLOR TUNABLE SUBSTRATE - A color tunable substrate is disclosed. The color tunable substrate includes multiple layers. A color of the color tunable substrate can be tuned by altering or adjusting characteristics of the layers included in the color tunable substrate. | 09-26-2013 |
| 20140218783 | ACOUSTO-OPTICAL TUNABLE FILTER ELEMENT - An acousto-optical filter element ( | 08-07-2014 |
| 20160149367 | Pulse Picking Laser - A mode locked laser supplies a high repetition seed pulse train along a seed beam path to a pulse picker having at least one polarizer. A Faraday rotator in optical communication with the seed beam rotates the polarization of the seed beam by about 45°. A double pass acousto optical modulator (AOM) receives the seed beam propagating through the Faraday rotator and diffracts the seed beam into a first order first pass beam and a zero order first pass beam. A reflector returns the first pass first order beam into the acousto optical modulator for a second pass. The modulator diffract the beam into a zero order second pass beam and a first order second pass diffracted beam, the first order second pass beam propagating on the substantially same path as the incoming seed beam but in the opposite direction. | 05-26-2016 |
