| Patents for G01J 9 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength (4,525) |
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| 01/19/2005 | EP1498710A1 Heterodyne optical spectrum analyzer for measuring amplitude and phase of input optical signals and associated method |
| 01/19/2005 | CN1184926C Apparatus for improving vision and resolution of retinal images |
| 01/13/2005 | WO2004066366A3 Tailored reflecting diffractor for euv lithographic system aberration measurement |
| 01/13/2005 | US20050007602 Device and method for wavefront measurement of an optical imaging system by means of phase-shifting interferometry |
| 01/13/2005 | US20050006559 Signal-to-noise ratio tuned adaptive optics control system |
| 01/12/2005 | CN1563917A Moire filtering synthetic process for digital moire phase shifting interference tech |
| 01/12/2005 | CN1184693C Device and method for detecting phase and amplitude of electromagnetic waves |
| 01/11/2005 | US6842252 Laser wavelength meter |
| 01/06/2005 | WO2005001445A2 Systems and methods for phase measurements |
| 01/06/2005 | WO2005001401A2 Process and apparatus for a wavelength tuning source |
| 01/06/2005 | WO2005001399A2 Method and apparatus for measuring bandwidth of an optical spectrum output of a very small wavelength very narrow bandwidth high power laser |
| 01/06/2005 | CA2527930A1 Process and apparatus for a wavelength tuning source |
| 01/05/2005 | CN1560576A White light double-field shearing wave surface interferometer |
| 01/04/2005 | US6839143 Method for the interferometric measurement of non-rotationally symmetric wavefront errors |
| 01/04/2005 | US6839139 Bench based integrated wavelength locker |
| 01/04/2005 | US6838658 Simple and compact laser wavelength locker |
| 01/04/2005 | US6837586 Ring optical interferometer |
| 12/30/2004 | US20040264981 Wavelength monitoring and control system |
| 12/30/2004 | US20040263861 Bandwidth estimation |
| 12/30/2004 | US20040263844 Method and apparatus for measuring bandwidth of an optical spectrum output of a very small wavelength very narrow bandwidth high power laser |
| 12/29/2004 | WO2004113856A1 Phase-diversity wavefront sensor |
| 12/29/2004 | WO2004112588A2 Iterative fourier reconstruction for laser surgery and other optical applications |
| 12/29/2004 | EP1492255A2 Optical wavelength monitoring and control system |
| 12/29/2004 | EP0960321B1 Device for measurement of optical wavelengths |
| 12/29/2004 | CA2529328A1 Iterative fourier reconstruction for laser surgery and other optical applications |
| 12/28/2004 | US6836330 Optical beamsplitter for a polarization insensitive wavelength detector and a polarization sensor |
| 12/25/2004 | CA2472408A1 Wavelength monitoring and control system |
| 12/23/2004 | WO2004008078A9 Delaying interferometer |
| 12/23/2004 | US20040260275 Wavefront calibration analyzer and methods |
| 12/23/2004 | US20040258122 Line selected F2 two chamber laser system |
| 12/23/2004 | US20040257657 Optical component and compact wavelength locking arrangement including such a component |
| 12/23/2004 | US20040257587 Full-field optical measurements of surface properties of panels, substrates and wafers |
| 12/23/2004 | US20040257584 Wavefront measuring apparatus and wavefront measuring method |
| 12/23/2004 | US20040257530 Wavefront reconstruction using fourier transformation and direct integration |
| 12/22/2004 | CN1181313C Method and system for measuring relief of object |
| 12/16/2004 | US20040252311 Method and apparatus for point diffraction interferometry |
| 12/15/2004 | EP1485686A2 High resolution spectral measurement device |
| 12/15/2004 | EP1377927A4 Information card system |
| 12/15/2004 | CN2663958Y Easily regulated two-slit interferometer |
| 12/14/2004 | US6831766 Projection exposure apparatus using wavefront detection |
| 12/14/2004 | US6831450 Electronic method and apparatus for measuring optical wavelength and locking to a set optical wavelength of Fabry-Perot tunable cavity opto-electronic devices |
| 12/09/2004 | WO2004106849A1 Optical device for studying an object |
| 12/09/2004 | US20040246604 High resolution image formation from a multiple aperture imaging system |
| 12/09/2004 | US20040246492 Spectral phase measurement using phase-diverse coherent optical spectrum analyzer |
| 12/09/2004 | US20040246491 Phase-diverse coherent optical spectrum analyzer |
| 12/09/2004 | CA2527259A1 Optical device for studying an object |
| 12/08/2004 | CN1553158A Optical fibre temperature sensing method and sensor based on SAGNAC interferometer |
| 12/08/2004 | CN1553155A Daytime atmospheric stability monitor for sun differential aberration movement |
| 12/07/2004 | US6829053 Airgap type etalon and apparatus utilizing the same |
| 12/02/2004 | US20040240506 DUV light source optical element improvements |
| 12/01/2004 | EP1481228A1 Method and arrangement for improving measuring quality during the operation of electro-optical mixing devices |
| 12/01/2004 | EP1119748A4 Interferometer coupler using multiple input ports for improved stabiblity |
| 12/01/2004 | CN1178342C Integrated wavelength monitor |
| 11/30/2004 | US6825934 Vibration noise mitigation in an interferometric system |
| 11/30/2004 | US6825455 Method and apparatus for photomixing |
| 11/25/2004 | WO2004085980B1 Optical wavelength meter |
| 11/25/2004 | US20040232319 Use of non-interdigitated commutation sensors on Opto-ASICS to achieve low CPR non-standard encoder resolutions |
| 11/24/2004 | EP1480012A2 Position encoder |
| 11/23/2004 | US6822745 Optical systems for measuring form and geometric dimensions of precision engineered parts |
| 11/23/2004 | US6822743 Integrated-optic channel monitoring |
| 11/18/2004 | US20040227932 Large dynamic range shack-hartmann wavefront sensor |
| 11/17/2004 | EP1012549B1 Method and device for wavefront optical analysis |
| 11/17/2004 | CN1546962A Differential interference measuring device and measuring method for optical fiber grating group delay spectrum |
| 11/16/2004 | US6819435 Spatial and spectral wavefront analysis and measurement |
| 11/16/2004 | US6819413 Method and system for sensing and analyzing a wavefront of an optically transmissive system |
| 11/09/2004 | US6816263 Interferometric measurement apparatus for wavelength calibration |
| 11/04/2004 | WO2004095653A2 Optical frequency synthesizer |
| 11/04/2004 | WO2004093663A2 Wavefront calibration analyzer and methods |
| 11/04/2004 | CA2523122A1 Optical frequency synthesizer |
| 11/03/2004 | CN1542415A Optical lens diffracted wave plane measuring instrument |
| 11/02/2004 | US6813028 Calibration methodology and system for optical network analyzer |
| 11/02/2004 | US6812452 Apparatus and method for measuring the wavelength of light present in a light beam |
| 10/28/2004 | US20040213303 Optical frequency synthesizer |
| 10/28/2004 | US20040212800 Simultaneous optical isolation and channel monitoring system |
| 10/26/2004 | US6810141 Method for processing spatial-phase characteristics of electromagnetic energy and information conveyed therein |
| 10/21/2004 | WO2004090507A2 Apparatus and method for correcting errors generated by a laser with non-ideal tuning characteristics |
| 10/21/2004 | WO2004090490A1 Diffuser, wavefront source, wavefront sensor and projection lighting facility |
| 10/21/2004 | WO2004029545A3 Method and apparatus for determining the wavelength of an input light beam |
| 10/21/2004 | US20040207853 Method and apparatus for measuring amplified stimulated emission in the output of a master oscillator power amplifier system |
| 10/20/2004 | EP1272823B1 Spatial and spectral wavefront analysis and measurement |
| 10/19/2004 | US6807203 Calibrating a frequency difference between two or more lasers over an extended frequency range |
| 10/19/2004 | US6807199 Wavelength inspection method of a semiconductor laser diode and a wavelength inspection unit thereof |
| 10/19/2004 | US6806965 Wavefront and intensity analyzer for collimated beams |
| 10/14/2004 | WO2004088361A2 Speckle reduction in optical coherence tomography by path length encoded angular compounding |
| 10/14/2004 | DE10316123A1 Phase difference interferometry system for wave front measurement for optical imaging system uses mask structure on object side and grating structure on image side |
| 10/12/2004 | US6804011 Apparatus and method(s) for reducing the effects of coherent artifacts in an interferometer |
| 10/07/2004 | WO2004085980A1 Optical wavelength meter |
| 10/07/2004 | US20040196467 Apparatus and method for correcting errors generated by a laser with non-ideal tuning characteristics |
| 10/07/2004 | US20040196450 Device for analysing a wavefront with enchanced resolution |
| 10/06/2004 | CN2646683Y Double shear wave surfaces interference measuring apparatus |
| 10/06/2004 | CN1170117C Method for improving measurements by laser interferometer |
| 10/05/2004 | US6801560 Line selected F2 two chamber laser system |
| 10/05/2004 | US6801324 Interferometer control and laser frequency locking |
| 10/05/2004 | US6801318 Apparatus and method for measuring intensity and phase of a light pulse with an interferometric asymmetric single-shot autocorrelator |
| 09/30/2004 | WO2004083914A1 Wavelength filter and wavlength monitor device |
| 09/30/2004 | US20040188600 Wavelength locking channel monitor |
| 09/29/2004 | CN2645057Y Light wave wavelength measuring apparatus |
| 09/28/2004 | US6798523 Sensor and method for detecting fiber optic faults |
| 09/28/2004 | US6798522 Wavelength measurement adjustment |
| 09/22/2004 | EP1272824B1 Method and apparatus for measuring phase differences between intensity-modulated optical signals |