| Patents for G01J 9 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength (4,525) |
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| 06/17/2001 | CA2321390A1 Wavelength measurement by dispersion timing |
| 06/13/2001 | CN1299067A Method for measuring timedelay of chirp optical fibre raster |
| 06/12/2001 | US6246481 Systems and methods for quantifying nonlinearities in interferometry systems |
| 06/12/2001 | US6246480 Stepped etalon |
| 06/06/2001 | EP1104663A2 Eye aberration characteristic measuring apparatus |
| 06/05/2001 | US6243506 Optical frequency and temperature sensor system |
| 06/05/2001 | US6243163 Wavelength detector |
| 05/31/2001 | DE10053444A1 Light wavelength dispersion measurement device, has pulsed light source, derives group delay from phase difference of frequency signals extracted from measured, reference pulse signals |
| 05/31/2001 | DE10048202A1 Wavemeter data processor in wavelength division multiplexing, has interpolation unit which complements frequency data converted by converter with corresponding data |
| 05/29/2001 | US6239877 Polarized interferential measurement wherein the modulation signal is adjusted to be equal to the duration of the measurement window |
| 05/25/2001 | WO2001036901A2 Systems and methods for quantifying nonlinearities in interferometry systems |
| 05/17/2001 | WO2001035155A1 System and method for recovering phase information of a wave front |
| 05/17/2001 | DE19950788A1 Laser beam spatial intensity profile for refractive laser ablation system used in eye surgery, has flat portion extending for larger percentage of profile and rounded edge extending for small percentage of profile |
| 05/17/2001 | DE10041588A1 Wavemeter used in information communication field, detects abnormality in light signal, if wavelength interval between each specified multiplexed light signal is not within set preset permissible fluctuation amount |
| 05/17/2001 | CA2390546A1 System and method for recovering phase information of a wave front |
| 05/16/2001 | EP1099943A1 Wavemeter comprising coarse and fine measuring units |
| 05/10/2001 | WO2001020371A3 Wavelength reference device |
| 05/08/2001 | US6229616 Heterodyne wavefront sensor |
| 05/08/2001 | US6229600 Spherical-aberration detection system and optical device using the same |
| 05/08/2001 | CA2104127C Coherent phase and frequency detection using sum-frequency mixing in non-linear waveguides |
| 05/01/2001 | CA2255197C Hartmann-type optical wavefront sensor |
| 04/26/2001 | WO2001028411A1 Wavefront sensor with off-axis illumination |
| 04/26/2001 | WO2001028409A1 Rapid, automatic measurement of the eye's wave aberration |
| 04/26/2001 | WO2001028408A2 Wavefront sensor having multi-power beam modes, independent adjustment camera, and accommodation range measurement |
| 04/26/2001 | DE19950792A1 Ophthalmic wavefront aberration diagnostic tool, has camera that aids in focusing aerial image from lenslet array, on wavefront sensor |
| 04/26/2001 | CA2388719A1 Rapid, automatic measurement of the eye's wave aberraion |
| 04/24/2001 | CA2254251C Method for determining the phase difference of light waves propagated over two paths |
| 04/24/2001 | CA2117344C Current sensor |
| 04/19/2001 | WO2001027576A1 Temperature compensation method for wavemeters |
| 04/18/2001 | CN2426978Y Millimeter wave measuring instrument |
| 04/17/2001 | US6219142 Method and apparatus for determining wave characteristics from wave phenomena |
| 04/17/2001 | CA2210123C Absolute optical frequency calibrator for a variable frequency optical source |
| 04/17/2001 | CA2151494C Control of spectral shift errors |
| 04/12/2001 | WO2001026191A1 Bandwidth estimating technique for narrow band laser |
| 04/12/2001 | WO2001025756A1 Signal processing apparatus and method |
| 04/12/2001 | WO2001025721A1 Methods and apparatus for splitting, imaging, and measuring wavefronts in interferometry |
| 04/12/2001 | CA2384636A1 Signal processing apparatus and method |
| 04/03/2001 | CA2041621C Method and apparatus for measuring a phase-modulated signal |
| 03/29/2001 | WO2001022046A1 Device for measuring of optical wavelengths |
| 03/29/2001 | DE19916123A1 Image information recording method for detection of electromagnetic waves, involves using two different types of pixels sensitive to intensity and phase of radiated electromagnetic wave |
| 03/22/2001 | WO2001020371A2 Wavelength reference device |
| 03/22/2001 | WO2001020251A1 Wavelength reference device |
| 03/22/2001 | CA2386150A1 Wavelength reference device |
| 03/22/2001 | CA2385905A1 Wavelength reference device |
| 03/20/2001 | US6204925 Interferometer having a micromirror |
| 03/14/2001 | EP0801829B1 Apparatus for temperature compensation of wavemeters and tunable lasers controlled thereby |
| 03/13/2001 | US6199986 Rapid, automatic measurement of the eye's wave aberration |
| 03/08/2001 | WO2001016569A1 Optical wavelength measuring devices |
| 03/08/2001 | DE19933290A1 Vorrichtung und Verfahren zur optischen Spektroskopie Apparatus and method for optical spectroscopy |
| 03/07/2001 | EP1081474A1 Improved stepped etalon |
| 03/07/2001 | EP1080522A1 Reliable modular production quality narrow-band high rep rate f 2? laser |
| 03/07/2001 | EP1080500A1 Device and method for detecting the phase and amplitude of electromagnetic waves |
| 03/01/2001 | CA2317368A1 Improved stepped etalon |
| 02/28/2001 | EP1078321A1 Method for reconstructing a surface using a linear prediction and applications of said method |
| 02/27/2001 | US6195169 Phase-shifting point diffraction interferometer grating designs |
| 02/22/2001 | WO2001012114A1 Method and device for completely correcting visual defects of the human eye |
| 02/22/2001 | WO2001012113A1 Method and device for performing online aberrometrie in refractive eye correction indices |
| 02/22/2001 | CA2346982A1 Method and device for completely correcting visual defects of the human eye |
| 02/21/2001 | CN2420631Y Gas delay device with clearing group velosity dispersive function |
| 02/21/2001 | CN1284648A Derivative field measuring method |
| 02/20/2001 | US6191863 Device and process for extinguishing a source |
| 02/15/2001 | WO2001011738A1 Double etalon optical wavelength reference device |
| 02/15/2001 | WO2001011392A2 Optical fiber wavelength reference device |
| 02/15/2001 | DE19938203A1 Verfahren und Vorrichtung zur Korrektur von Sehfehlern des menschlichen Auges Method and device for correcting visual defects of human eyes |
| 02/15/2001 | CA2381665A1 Double etalon optical wavelength reference device |
| 02/15/2001 | CA2381658A1 Optical fiber wavelength reference device |
| 02/06/2001 | US6184981 Speckle mitigation for coherent detection employing a wide band signal |
| 02/06/2001 | US6184974 Apparatus and method for evaluating a target larger than a measuring aperture of a sensor |
| 02/06/2001 | US6183414 Technique for restoring plasticity to tissues of a male or female organ |
| 02/01/2001 | WO2001007878A1 Apparatus and methods for analysing electromagnetic radiation |
| 01/31/2001 | EP1072866A2 Demodulation method for fiber optic sensor arrays |
| 01/31/2001 | EP0876582A4 Sensing method and apparatus |
| 01/31/2001 | CN1281974A Virtual synthesis wave long-chain absolute distance interferometry and its equipment for implementing one |
| 01/25/2001 | WO2001006210A1 Method and system for measuring the relief of an object |
| 01/25/2001 | DE19919020C1 Analyzing light wave phase information for displaying three-dimensional images involves measuring light displacement in different absorber states |
| 01/25/2001 | CA2579563A1 Method and system for measuring the relief of an object |
| 01/23/2001 | US6178002 Method and device for measuring and stabilization using signals from a Fabry-Perot |
| 01/18/2001 | WO2001004591A1 Apodized micro-lenses for hartmann wavefront sensing and method for fabricating optical elements with varying transmission |
| 01/18/2001 | WO2001004590A1 Sub-lens spatial resolution shack-hartmann wavefront sensing |
| 01/17/2001 | EP1068491A1 Noise supression apparatus and method for time division multiplexed fiber optic sensor arrays |
| 01/14/2001 | CA2277855A1 Method and system of measuring the height of weld beads in a printed circuit |
| 01/11/2001 | WO2001003258A1 Interferometer control and laser frequency locking |
| 01/11/2001 | WO2001002822A1 Apparatus and method for evaluating a target larger than a measuring aperture of a sensor |
| 01/11/2001 | WO2001002799A1 Birefringement interferometer |
| 01/11/2001 | WO2000033021A8 Method for improving measurements by laser interferometer |
| 01/10/2001 | EP1066495A2 Apparatus and method for measuring the refractive index and optical path length effects of air using multiple-pass interferometry |
| 01/04/2001 | DE19922783A1 Optical spectroscopy device has spectrally dispersive or diffractive elements influencing wavefronts of interference sub-beam(s) depending on wavelength |
| 12/27/2000 | EP1063570A2 In situ projection optic metrology method and apparatus |
| 12/27/2000 | EP1063503A1 Wavelength monitoring apparatus for laser light for semiconductor exposure |
| 12/25/2000 | CA2311014A1 In situ projection optic metrology method and apparatus |
| 12/21/2000 | WO2000077482A1 Illumination measuring device |
| 12/20/2000 | EP1061349A1 Achromatic optical interferometer with a continuously tuneable sensitivity |
| 12/20/2000 | CN1277351A Infrared laser detecting card |
| 12/19/2000 | US6163381 Dual sensor atmospheric correction system |
| 12/14/2000 | WO2000075721A1 High speed optical analogue to digital converter and digital optical wavemeter |
| 12/14/2000 | DE19926812A1 Strahlungs-Meßvorrichtung Radiation measuring device |
| 12/13/2000 | EP1058813A1 Interferometer and method for measuring the refractive index and optical path length effects of air |
| 12/13/2000 | EP1058812A1 Interferometric measuring device for determining the profile or the pitch of especially rough surfaces |
| 12/13/2000 | EP1058810A1 Apparatus and methods for measuring intrinsic optical properties of a gas |
| 12/13/2000 | EP0934501A4 A multi-wavelength reference |