| Patents for G01J 9 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength (4,525) |
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| 12/11/1997 | DE19723448A1 Compensation method for time delay in interferometer measurement and reference signals |
| 12/11/1997 | DE19622412A1 Interferometer position sensor for precision machine tool |
| 12/03/1997 | EP0809797A1 Interferometric sensing device |
| 11/18/1997 | US5689314 Common path point diffraction interferometer using liquid crystal phase shifting |
| 11/13/1997 | DE19618419A1 Diffraction limited spherical wave generator for e.g. reference wave in interferometer |
| 11/06/1997 | DE19703922A1 Resolution of phase measurement ambiguities in radar interferometry |
| 11/04/1997 | US5684545 Adaptive optics wave measurement and correction system |
| 10/23/1997 | DE19615616A1 Coherence measuring optics system for interferometry with beam splitter |
| 10/22/1997 | EP0802438A2 Shape control apparatus for reflecting mirrors |
| 10/22/1997 | EP0801829A1 Temperature compensation method and apparatus for wave meters and tunable lasers controlled thereby |
| 10/22/1997 | EP0647310B1 Method of an apparatus for interferometrically inspecting a surface of an object |
| 10/22/1997 | EP0620912A4 Interferometer structure. |
| 10/21/1997 | US5680210 Interferometric target detecting apparatus having a light source with more Lorentzian than Gaussian spectral components |
| 10/09/1997 | DE19613303A1 Absolute distance measurement method working with variable wavelengths using two light conductors |
| 10/07/1997 | US5675513 Method of calibrating an interferometer and reducing its systematic noise |
| 10/07/1997 | US5675413 Adjustable optical test apparatus including interferometer with micromirror and alignment observation system |
| 09/30/1997 | US5673096 Interferometric arrangement with diffractive optical element for measuring intraocular distances |
| 09/30/1997 | CA2108096C Voltage-tunable photodetector |
| 09/17/1997 | EP0795120A1 Method and apparatus for calibrating a laser wavelength control mechanism |
| 09/17/1997 | EP0795116A1 Phase shifting diffraction interferometer |
| 09/02/1997 | US5663793 Homodyne interferometric receiver and calibration method having improved accuracy and functionality |
| 08/13/1997 | EP0445293B1 Light receiving system of heterodyne detection and image forming device for light transmission image using said light receiving system |
| 07/31/1997 | WO1997027500A1 Radiation field analyzer |
| 07/31/1997 | WO1997027468A1 Low-coherence interferometric device |
| 07/30/1997 | EP0786075A1 Interferometer |
| 07/08/1997 | US5647032 Interferometers for measuring coherence length and high-speed switching of laser light |
| 07/02/1997 | CN1153297A Interferometer having micromirror and filter method therein |
| 06/19/1997 | WO1997021989A1 Wavefront measuring system with integral geometric reference (igr) |
| 06/18/1997 | EP0779719A2 Polarization diversity receiver systems |
| 06/18/1997 | EP0779530A1 Adaptive optical module |
| 06/17/1997 | EP0779530A4 Adaptive optical module |
| 06/11/1997 | EP0777853A1 Device for carrying out spectroscopic measurements |
| 06/04/1997 | EP0776536A1 Stabilised multi-frequency light source and method of generating synthetic light wavelengths |
| 05/13/1997 | US5629765 Wavefront measuring system with integral geometric reference (IGR) |
| 05/13/1997 | US5629699 Analogue-to-digital converter and analogue-to-digital conversion system embodying said converter |
| 05/06/1997 | US5627648 Method and apparatus for use in the measurement of the wavelength or frequency of an optical signal |
| 05/02/1997 | EP0770219A1 An optical measurement method and apparatus |
| 04/30/1997 | CN1034766C Method and apparatus for determining phase difference between two independent coherent lights with bi-grating induced by time delayed laser |
| 04/24/1997 | DE19538747A1 Planar wavefront aberration measuring method for coherent light source in gitter shear interferometer |
| 04/22/1997 | US5623561 Apparatus for detecting a property of an environment |
| 04/08/1997 | US5619332 High spectral resolution fiber optic spectrometer |
| 04/03/1997 | WO1997012225A1 Integrated optic interferometric sensor |
| 04/02/1997 | EP0639264B1 Solid-block homodyne interferometer |
| 03/11/1997 | US5611007 Asymmetric integrated optical Mach-Zehnder interferometer |
| 03/11/1997 | US5610707 Wavefront sensor for a staring imager |
| 03/06/1997 | DE19635907A1 Phase difference measuring method for orthogonally polarised components |
| 02/25/1997 | US5606417 Achromatic optical interferometer, of the trilateral shift type for analyzing the wave surface of a light beam |
| 02/18/1997 | US5604591 Method of measuring phase difference and apparatus for carrying out the same |
| 02/13/1997 | WO1997005679A1 Method and device for wavelength locking |
| 02/13/1997 | WO1996036858A3 High spectral resolution fiber optic spectrometer |
| 02/11/1997 | US5602800 Methods for ultrasonic/vibration detection using polarization beating in a microchip laser |
| 01/28/1997 | US5598261 Wavefront sensor for a scanning imager |
| 12/10/1996 | US5583638 Angular michelson interferometer and optical wavemeter based on a rotating periscope |
| 11/27/1996 | EP0538425B1 Process and device for determining quantities to be measured by means of an integrated optical sensor module |
| 11/21/1996 | WO1996036858A2 High spectral resolution fiber optic spectrometer |
| 11/19/1996 | US5576834 Optical wavemeter utilizing numerical fraction difference of pulses for determining absolute wave length |
| 11/14/1996 | WO1996035973A1 Adaptive optical module |
| 11/13/1996 | CN1135820A Cryptographic receiver |
| 11/12/1996 | US5574560 Dual-beam interferometer with a phase grating |
| 11/12/1996 | US5574557 Apparatus and method for performing sub-poissonian interference measurements using an intensity-squeezed state |
| 10/31/1996 | DE19514852A1 Method for measuring acceleration and vibration |
| 10/24/1996 | WO1996033535A1 Optical frequency generator |
| 10/24/1996 | DE19514386A1 Optischer Frequenzgenerator Optical frequency generator |
| 10/16/1996 | EP0737843A2 A method and apparatus for coherence observation by interference noise |
| 10/15/1996 | US5565986 Stationary optical spectroscopic imaging in turbid objects by special light focusing and signal detection of light with various optical wavelengths |
| 10/15/1996 | US5565985 Particle monitoring sensor |
| 10/10/1996 | DE19513234A1 Determination of phases and phase differences of light reflecting from specular or diffusely reflecting, or transparent surface of object |
| 10/10/1996 | DE19513233A1 Determination of phases and phase differences of light reflecting from specular or diffusely reflecting, or transparent surface of object |
| 10/09/1996 | EP0736759A2 Interferometer having a micromirror |
| 10/08/1996 | US5563709 Apparatus for measuring, thinning and flattening silicon structures |
| 10/08/1996 | CA2169141A1 Interferometer having a micromirror |
| 09/18/1996 | EP0615623B1 Spectral discrimination using temporal mapping of light pulses through optical filters |
| 09/17/1996 | US5557598 Beam splitter inspection apparatus and method |
| 09/17/1996 | US5557404 Spectrophotometer with a system for calibrating a monochromator |
| 09/10/1996 | US5553614 Examination of biological tissue using frequency domain spectroscopy |
| 09/06/1996 | WO1996027121A1 Optical fibre interferometer and optical fibre piezo-electric modulator |
| 08/22/1996 | WO1996025656A1 Interferometric sensing device |
| 08/20/1996 | US5548609 External resonator type wavelength-variable semiconductor laser light source |
| 08/20/1996 | US5548403 Phase shifting diffraction interferometer |
| 08/08/1996 | WO1996024032A1 Method and apparatus for wide field distortion-compensated imaging |
| 08/06/1996 | US5543916 Interferometer with alignment assembly and with processor for linearizing fringes for determining the wavelength of laser light |
| 08/06/1996 | CA2127567C Michelson interferometer |
| 07/24/1996 | EP0722640A1 Cryptographic receiver |
| 07/11/1996 | DE19600297A1 Laserinterferometer Laser interferometer |
| 07/09/1996 | US5535029 Optical signal processor |
| 07/09/1996 | US5535000 Optical interferometer with squeezed vacuum and reduced guided-acoustic-wave brillouin scattering noise |
| 07/04/1996 | DE4446887A1 Non-destructive surface inspection by shearing speckle interferometry |
| 07/02/1996 | CA2039226C Integrated optical devices for the interferometric measurement of light waves |
| 06/27/1996 | DE4446183A1 Measuring intra=ocular distances between different optical boundary surfaces of eye |
| 06/06/1996 | WO1996017221A1 Phase shifting diffraction interferometer |
| 06/06/1996 | CA2206212A1 Phase shifting diffraction interferometer |
| 06/05/1996 | DE4443076A1 Light-wave phase-shifter for accurate control of phases |
| 06/04/1996 | US5523838 Optical wavemeter employing a length measuring machine with a white light source for achieving maximum interfering efficiency |
| 05/28/1996 | US5521704 Apparatus and method for measuring absolute measurements having two measuring interferometers and a tunable laser |
| 05/07/1996 | US5515169 Spectral wavelength discrimination system and method for using |
| 04/18/1996 | WO1996011387A1 Interferometer |
| 04/02/1996 | US5504578 Temporal fringe pattern analysis system of a laser gain media |
| 03/14/1996 | DE4431412C1 Vorrichtung zur Durchführung spektroskopischer Messungen Device for carrying out spectroscopic measurements |
| 03/07/1996 | WO1996007224A1 Temperature compensation method and apparatus for wave meters and tunable lasers controlled thereby |
| 03/07/1996 | WO1996007085A1 Method and apparatus for calibrating a laser wavelength control mechanism |