| Patents for G01J 9 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength (4,525) |
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| 12/13/2000 | EP0932814A4 An optical wavelength scanner employing a reference system |
| 12/12/2000 | US6160831 Wavelength calibration tool for narrow band excimer lasers |
| 12/12/2000 | US6160659 Method and apparatus for monitoring the momental wavelength of light, and an optical amplifier and an optical communication system which incorporate the method and apparatus to adjust gain tilt |
| 12/12/2000 | US6160626 Process and device for measuring the complex spectrum (amplitude and phase) of optical pulses |
| 11/29/2000 | EP1055103A1 Method and device for determining the distribution of intensity and phase in a laser beam different cutting planes |
| 11/22/2000 | EP1054244A2 Optical scanning spectrometer. |
| 11/21/2000 | US6151114 Coherent laser warning system |
| 11/18/2000 | CA2307928A1 Optical scanning spectrometer |
| 11/15/2000 | EP1052526A2 Controlled multi-wavelenght etalon |
| 11/14/2000 | US6147755 Dynamic optical phase state detector |
| 11/07/2000 | US6144449 Low coherence interferometric device |
| 11/07/2000 | US6144025 Laser light source apparatus |
| 11/02/2000 | WO2000065303A1 Gas insensitive interferometric apparatus and methods |
| 11/02/2000 | WO2000065300A1 Optical heterodyne detection for cavity ring-down spectroscopy |
| 10/31/2000 | US6141138 Apparatus and method for measuring characteristics of light |
| 10/26/2000 | DE19917439A1 Integrated optical sensor, has waveguide with measurement, reference arms; reference arm is connected to arrangement(s) for phase shifting sub-wave carried by reference arm |
| 10/26/2000 | DE19916072A1 Optical spectroscopy device has spectrally dispersive or diffractive elements influencing wavefronts of interference sub-beam(s) depending on wavelength |
| 10/25/2000 | EP1046900A2 Optical heterodyne detection for cavity ring-down spectroscopy |
| 10/19/2000 | WO2000062026A1 Device and method for optical spectroscopy |
| 10/12/2000 | WO2000059368A1 High resolution device for observing a body |
| 10/10/2000 | US6130419 Fixed mount wavefront sensor |
| 10/05/2000 | DE10015241A1 Optical interferometer for optical measurement, includes an optical part, e.g. a beam splitter divided between a piece fixed in the housing and a removable piece |
| 09/27/2000 | EP1038155A1 Wavelength measuring device with a mach zehnder interferometer controlled without mean value |
| 09/21/2000 | DE10012312A1 Procedure and equipment for testing an excitation or molecular fluorescence laser optical system for spectral line narrowing or bandwidth selection uses a test module for determination of test parameters |
| 09/19/2000 | US6122057 Four step discrete phase shift demodulation method for fiber optic sensor arrays |
| 09/13/2000 | CN1266486A fiber-optic frequency shifter, optical insterferometer and method of generating two complementary optical interference signals using the same |
| 09/12/2000 | US6118530 Optical scanning spectrometer |
| 09/07/2000 | DE19935908C1 Bragg grating sensor for detecting physical quantity |
| 09/05/2000 | US6115126 Optical wavefront analyzer and method using a single wave shifter |
| 09/05/2000 | US6115122 Fabry-perot fiber bragg grating multi-wavelength reference |
| 08/29/2000 | US6111644 Interferometer for detecting and analyzing coherent radiation |
| 08/22/2000 | US6107617 Liquid crystal active optics correction for large space based optical systems |
| 08/16/2000 | EP1028311A1 Apparatus for measuring wavelength changes and wavelength tunable light source |
| 08/10/2000 | DE19938103A1 Schema zur Messung der chromatischen Dispersion für optische Systeme mit Fernzugriffspunkten Scheme for measuring the chromatic dispersion of optical systems with remote access points |
| 08/03/2000 | WO2000014513A9 Speckle mitigation for coherent detection employing a wide band signal |
| 08/01/2000 | US6097487 Device for measurement of optical wavelengths |
| 08/01/2000 | US6095651 Method and apparatus for improving vision and the resolution of retinal images |
| 07/25/2000 | US6094271 Wavelength measuring system |
| 07/25/2000 | US6094267 Optical heterodyne detection for cavity ring-down spectroscopy |
| 07/20/2000 | WO2000042401A2 Method and device for analysing a highly dynamic wavefront |
| 07/19/2000 | EP1019688A1 Orrichtung z |
| 07/18/2000 | US6091495 Optical interferometer and signal synthesizer using the interferometer |
| 07/11/2000 | US6088142 System and method for precision wavelength monitoring |
| 07/04/2000 | US6084227 Method and apparatus for wide field distortion-compensated imaging |
| 06/28/2000 | EP1012549A1 Method and device for wavefront optical analysis |
| 06/27/2000 | US6081335 Phase difference measuring device with visible light source for providing easy alignment of optical axes and method therefor |
| 06/27/2000 | US6081333 Bi-lateral shearing interferometer with beam convergence/divergence indication |
| 06/21/2000 | EP1009984A1 Method and device for determining the phase- and/or amplitude data of an electromagnetic wave |
| 06/20/2000 | US6078394 Wavelength manager |
| 06/13/2000 | US6075598 Interferometer |
| 06/08/2000 | WO2000033021A1 Method for improving measurements by laser interferometer |
| 06/08/2000 | DE19856400A1 Direct phase measurement of reflected or transmitted light e.g. for materials testing by using slit to focus light onto image plane in which sensor is provided |
| 05/31/2000 | DE19703922C2 Verfahren zur Auflösung von Mehrdeutigkeit bei einer Phasenmessung Procedures for resolving ambiguity in a phase measurement |
| 05/17/2000 | EP1000315A1 Pulse measurement using frequency shifting techniques |
| 05/11/2000 | WO2000026622A1 Phase determination of a radiation wave field |
| 05/10/2000 | EP0999434A1 Wavefront shape sensing device |
| 05/10/2000 | EP0998662A1 Wavelength measuring system |
| 05/04/2000 | DE19944021A1 Aspheric surface shape measuring apparatus has null element provided in optical path between light source and examined surface to convert spherical wave to desired aspherical wave |
| 05/02/2000 | US6057913 Compact shearing wavefront sensor and method |
| 04/27/2000 | WO2000023764A1 Interferometer for optical wavelength monitoring |
| 04/26/2000 | EP0995243A1 Wavelength reference for excimer laser |
| 04/20/2000 | WO2000022393A1 Interferometer coupler using multiple input ports for improved stabiblity |
| 04/20/2000 | DE19844976A1 Optical device for measuring physical parameter |
| 04/20/2000 | CA2340643A1 Interferometer coupler using multiple input ports for improved stabiblity |
| 04/18/2000 | US6052180 Apparatus and method for characterizing pulsed light beams |
| 04/12/2000 | EP0991925A1 Fiber-optic frequency shifter, optical interferometer and method of generating two complementary optical interference signals using the same |
| 04/04/2000 | US6046813 Wavelength detecting device |
| 04/04/2000 | CA2235238C High energy laser focal sensor |
| 03/30/2000 | WO2000017613A1 Optical phase detector |
| 03/30/2000 | WO2000017612A1 Wavefront sensing device |
| 03/28/2000 | US6043883 Wavemeter and an arrangement for the adjustment of the wavelength of the signals of an optical source |
| 03/16/2000 | WO2000014513A2 Speckle mitigation for coherent detection employing a wide band signal |
| 03/15/2000 | CN2369231Y Spectral modulating microscopes |
| 03/08/2000 | EP0983483A1 Interferometric measuring device |
| 03/02/2000 | WO2000011430A1 Apparatus and method for the non-destructive testing of articles using optical metrology |
| 03/01/2000 | EP0981733A1 Grating based phase control optical delay line |
| 03/01/2000 | EP0777853B1 Device for carrying out spectroscopic measurements |
| 03/01/2000 | CN1245904A Optical wave-front sensor |
| 02/29/2000 | US6031602 Method and apparatus for inspecting or testing a sample by optical metrology |
| 02/24/2000 | WO2000009978A1 Apparatus for measuring a light beam wavelength |
| 02/23/2000 | CN1245406A Apparatus for improving vision and resolution of retinal images |
| 02/22/2000 | US6028935 Cryptographic receiver |
| 02/17/2000 | WO1999042785A3 Apparatus and method for measuring the refractive index and optical path length effects of air using multiple-pass interferometry |
| 02/15/2000 | US6025912 Interferometer having a micromirror |
| 02/08/2000 | US6023057 Device for determining the phase errors of electromagnetic waves |
| 01/25/2000 | US6018537 Reliable, modular, production quality narrow-band high rep rate F2 laser |
| 01/18/2000 | US6016199 Interferometric device for performing spectroscopic measurements with a stepped Fabry Perot |
| 01/13/2000 | DE19829382A1 Measurement signal reconstruction method |
| 01/12/2000 | EP0970353A1 Device and process for extinguishing a source |
| 01/12/2000 | EP0969760A1 Apparatus for improving vision and resolution of retinal images |
| 01/12/2000 | EP0795120A4 Method and apparatus for calibrating a laser wavelength control mechanism |
| 01/12/2000 | EP0795116A4 Phase shifting diffraction interferometer |
| 01/04/2000 | US6011622 Particle monitoring system |
| 12/28/1999 | US6008931 Optical frequency generator |
| 12/28/1999 | US6008898 Method and apparatus for measuring acceleration and vibration using freely suspended fiber sensor |
| 12/23/1999 | WO1999066308A1 Automated optical measurement apparatus and method |
| 12/23/1999 | DE19822453A1 Method of absolute testing of aspherical surfaces using computer generated diffractive elements |
| 12/21/1999 | US6005664 Nonuniform sampling for spectral and related applications |
| 12/14/1999 | US6002484 Phase contrast aberroscope |
| 12/09/1999 | DE19820295C1 Optical damping element arrangement for damping optical signal intensities |