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| Number | Title | Issue Date |
| 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 |
| 7372200 | Light-emitting device, method of manufacturing a light-emitting device, and electronic equipment The present invention uses plastic film in vacuum sealing an OLED. Inorganic insulating films which can prevent oxygen or water from being penetrated therein and an organic insulating film which has a smaller internal stress than that of the inorganic insulating fil... | 05/13/2008 |
| 7355323 | Piezoelectric device, droplet jetting device using the same, and image output device A piezoelectric device includes a flexible substrate and a piezoelectric element including a pair of electrodes each positioned on the flexible substrate. A switching element is connected to one of the pair of electrodes, in the flexible substrate, and a common line... | 04/08/2008 |
| 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 |
| 7215423 | Control of beam spot size in ellipsometer and the like systems System and methodology for controlling a beam spot size where it impinges onto a sample, and/or discriminant selection and analysis of data from detector elements in a two dimensional detector array which correspond to identified regions on a sample. ... | 05/08/2007 |
| 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 |
| 7129102 | Light-emitting device, method of manufacturing a light-emitting device, and electronic equipment The present invention uses plastic film in vacuum sealing an OLED. Inorganic insulating films which can prevent oxygen or water from being penetrated therein and an organic insulating film which has a smaller internal stress than that of the inorganic insulating fil... | 10/31/2006 |
| 7095046 | Semiconductor device Provided is a method of realizing a semiconductor device having a structure in which a sufficient light shielding property is compatible with a sufficient storage capacitance without reducing an aperture ratio. A lower light shielding film is formed on a substrate, ... | 08/22/2006 |
| 7067976 | Light-emitting device, method of manufacturing a light-emitting device, and electronic equipment The present invention uses plastic film in vacuum sealing an OLED. Inorganic insulating films which can prevent oxygen or water from being penetrated therein and an organic insulating film which has a smaller internal stress than that of the inorganic insulating fil... | 06/27/2006 |
| 7057799 | Tuning a narrow band filter for telecommunication applications with an acoustic optical tunable filter An optical tunable filter that includes a thin-film filter for band-passing at least two bands of wavelengths. The tunable filter further includes a tunable band-passing device tunable over the at least two bands for tuning to a tunable pass-band spectrally overlapp... | 06/06/2006 |
| 6982818 | Electronically tunable optical filtering modules Electronically agile optical filtering modules for equalizing light propagation differences in at least two spaced optical beam pathways in the modules. The modules use optical polarization rotation devices that may include acousto-optic tunable filter (AOTF) device... | 01/03/2006 |
| 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 |
| 6885491 | Diffraction-optical component, illumination system and exposure system comprising such a diffraction-optical component as well as an exposure method employing such an exposure system A diffraction-optical component for providing a radiation-diffracting grating structure is proposed, comprising a surface wave device including a substrate 43, a surface wave source 47 excitable with an adjustable frequency for producing surface waves ... | 04/26/2005 |
| 6882374 | Image projection system A DMD (4) as a image display device time divisionally displays channel images formed by separating an image into RGB channels. A white light emitted from a xenon lamp (1) is separated, by an acousto-optical element (3), into spectal components. ... | 04/19/2005 |
| 6867919 | Optical arrangement and microscope An optical arrangement for directing illumination light to a sample and for directing the detection light proceeding from the sample to a detector has a spectrally selective influencing means in the beam path of the detection light, which influences the polarization... | 03/15/2005 |
| 6822785 | Miniature, narrow band, non-collinear acoustic optical tunable filter for telecom applications This invention includes an Acousto-optical tuning device by employing the TeO2 in share mode, non-collinear and in high RF frequency (or large Bragg's deflection region), it is able to achieve the telecomm worthy tunable filter that provides high tuning speed, no-mo... | 11/23/2004 |
| 6775051 | Systems and methods for scanning a beam of light across a specimen Systems and methods for scanning a beam of light over a specimen are provided. A system may include a pre-scan acousto-optical deflector (AOD) configured to deflect a beam of light, a second AOD configured as a traveling lens to focus the scanning beam, a relay lens... | 08/10/2004 |
| 6728487 | Drive method for a plurality of acousto-optic filters, acousto-optic filter apparatus, and selective wavelength extension method An AOTF drive method for driving a plurality of AOTFs connected in tandem comprises: separating a plurality of RF signals in advance into a plurality of groups; batch-branching the RF signals of each group in accordance with the number of steps of the AOTFS; and bat... | 04/27/2004 |
| 6600590 | Speckle suppressed laser projection system using RF injection A system and method for reducing or eliminating the speckle intensity distribution of a laser imaging system. In one embodiment of the invention, a radio frequency signal is injected into a semiconductor laser light source (12) for a projection system (10... | 07/29/2003 |
| 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 |
| 6574035 | Diffraction optical device and optical apparatus using the same An acoustooptic device is structured by providing an interdigital transducer in which arch-shaped electrode fingers are interdigitated so that the interdigital transducer is circular or annular in shape as a whole, on an optical waveguide which is circula... | 06/03/2003 |
| 6560005 | Acousto-optic devices An acousto-optic device comprises a first light source for producing a light beam, a light-transmitting material capable of transmitting the light beam along an optical path through the light-transmitting material, a light-absorbing material adjacent to t... | 05/06/2003 |
| 6549247 | Ultrasonic liquid-crystal display An ultrasonic liquid-crystal display comprises a nonpiezoelectric bottom-plate, a piezoelectric substrate on a first surface-part of an upper end-surface of the nonpiezoelectric bottom-plate, at least one dispersive interdigital transducer on the piezoele... | 04/15/2003 |
| 6462857 | Optical modulator and optical modulation method An optical modulator includes a magnetic ferrite single crystal, an optical source, a photoreceptor system and an analyzer. The magnetic ferrite single crystal has a transducer mounted and arranged to receive a microwave. The microwave is modulated by a s... | 10/08/2002 |
| 6144482 | Acousto-optic modulator for selective extraction of one or more wavelengths from randomly polarized polychromatic light beam A polarization-independent polychromatic light modulator applies one or more pairs of predetermined RF drive frequencies to an acousto-optic transducer of an acousto-optic modulator body upon which a single beam of randomly polarized or unpolarized polych... | 11/07/2000 |
| 6084627 | Apparatus for and method of controlling an image recording device An apparatus and method for controlling an image recording device. The apparatus includes an acousto-optic deflector that deflects a beam of light so as to write a sub-scan comprising a predetermined number of picture elements. The image recording device ... | 07/04/2000 |
| 6081365 | Acousto-optic modulator and manufacturing method thereof An acousto-optic modulator comprised of an acousto-optic element coated with an anti-reflection layer, and a method of manufacturing the same, are provided. The acousto-optic modulator includes an anti-reflection layer, comprised of at least two coating l... | 06/27/2000 |
| 5963569 | Multiple channel acousto-optic modulators A multichannel acousto-optic modulator (MCAOM) is described which uses a crystal with a plurality of mounting faces for acoustic transducers. The mounting faces are oriented so that the acoustic transducers mounted thereon generate acoustic fields which i... | 10/05/1999 |
| 5923461 | Scanner with deflection element for scanning imaging surfaces A multi-beam scanning system for scanning a curved imaging surface includes at least one radiation emitter which emits first and second beams of radiation. A spin deflector, rotatable about a spin axis, directs the first beam to form a first scan line and... | 07/13/1999 |
| 5907428 | Acousto-optic element light deflector light beam scanning apparatus and image recording apparatus An xyz coordinate system is determined so that a z-axis may coincide with an incident direction of an incident light, an x-axis may coincide with a polarizing direction of the incident light and a y-axis may be defined as the right-handed system from the ... | 05/25/1999 |
| 5825497 | Device for measuring height of object An object surface height measuring device with two acousto-optical modules for refracting light from a light emitter with predetermined refractive indices depending on frequency modulation so that the light is swept over the X and Y axes of an object, and... | 10/20/1998 |
| 5633747 | Variable spot-size scanning apparatus An apparatus for both deflecting a beam of light illuminating a spot on a surface and varying the size of the spot, electronically, without changing any system components. The apparatus includes an acousto-optic deflector driven with a linear FM signal pr... | 05/27/1997 |
| 5463493 | Acousto-optic polychromatic light modulator An acousto-optic polychromatic light modulating apparatus employs an acousto-optic medium, and a single piezoelectric transducer, which is driven by a plurality of frequency components, the intensities of which are controlled in response to input electron... | 10/31/1995 |
| 5138482 | Light modular and recording device employing same A light modulator includes an interdigital transducer having a plurality of interdigital electrode fingers for generating surface elastic waves having respective different frequencies in an optical waveguide. The electrode fingers are oriented in differen... | 08/11/1992 |
| 5132834 | Method of inputting signals to light modulator and simultaneous multi-beam type light modulating apparatus Disclosed herein is a method of mixing together a plurality of inputted high-frequency signals whose frequency intervals are equal to each other so as to input the thus-mixed high-frequency signals to a multi-frequency acousto-optic device for dividing in... | 07/21/1992 |
| 5107368 | Light beam scanning apparatus A light beam scanning apparatus comprises an ultrasonic light deflector for diffracting a light beam of a predetermined wavelength, and a reflecting mirror position approximately normal to light deflected by the ultrasonic light deflector for reflecting t... | 04/21/1992 |
| 4872746 | Light beam deflector A light beam deflector according to the present invention comprises an acousto-optical element for deflecting a light beam at an angle of deflection which is dependent on the frequency of a drive signal applied thereto. This acousto-optical element has a ... | 10/10/1989 |
| 4799777 | Multi-frequency acousto-optic modulation process and apparatus A process for acousto-optic modulation of a monochromatic light beam, delivered by a laser, consists in deflecting the light beam in an acousto-optic modulator which receives a composite electric signal. The composite signal has at least one modulation fr... | 01/24/1989 |
| 4460250 | Acousto-optical channelized processor Coherent light is incident upon an acousto-optical cell through which bulk acoustic waves are propagating. These acoustic waves correspond to a signal to be detected and cause periodic variations in the refractive index of the cell which interact with the... | 07/17/1984 |
| 4444470 | Multibeam optical modulation and deflection apparatus An acousto-optic deflector is supplied with a beam of laser light and driven in a parallel relationship with a plurality of high frequency signals to produce a plurality of diffracted deflected beams of laser light. The high frequency signals have phases ... | 04/24/1984 |
