| Patents for G01B 9 - Instruments as specified in the subgroups and characterised by the use of optical measuring means (14,810) |
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| 07/04/1989 | US4845356 Apparatus and method for surface inspection with test and reference channel comparison |
| 07/04/1989 | US4844617 Confocal measuring microscope with automatic focusing |
| 07/04/1989 | US4844616 Interferometric dimensional measurement and defect detection method |
| 07/04/1989 | US4844593 Optical feedback isolator |
| 06/29/1989 | WO1989005955A1 Optical apparatus for use with interferometric measuring devices |
| 06/28/1989 | EP0321639A1 Apparatus for detecting profile error of article surface |
| 06/15/1989 | DE3833201A1 Interferometric measuring system having a wavelength correcting device for the laser light, in particular for length measurements |
| 06/14/1989 | EP0319923A2 Apparatus and method for electronic analysis of test objects |
| 06/06/1989 | USH637 Method and apparatus for rapid optical phasing |
| 06/06/1989 | US4836678 Double-path interferometer |
| 06/01/1989 | WO1989004944A1 Microscopes |
| 06/01/1989 | DE3738770A1 Interferometer for straightness measurements |
| 05/23/1989 | US4832494 Optical inspection |
| 05/17/1989 | EP0316208A1 Control system for angular displacements of a turntable and application in a X-ray spectrometer |
| 05/16/1989 | US4830496 Interferometer |
| 05/16/1989 | US4830486 Frequency modulated lasar radar |
| 05/10/1989 | EP0314709A1 Two-wavelength interferometry with optical heterodyne process. |
| 05/09/1989 | US4828367 Interferometer bearing assembly |
| 05/03/1989 | EP0314103A2 Method and device for the contactless drive of a double pendulum interferometer |
| 05/03/1989 | CN1004104B High speed multiple frames interferometer for transient flow field |
| 04/25/1989 | US4825262 Fabry-perot interferometer |
| 04/25/1989 | US4824251 Optical position sensor using coherent detection and polarization preserving optical fiber |
| 04/25/1989 | US4824240 Internal laser interferometer |
| 04/20/1989 | WO1989003516A1 Optical devices for interferometric measuring systems |
| 04/12/1989 | EP0311144A2 Optical instrument for measuring displacement |
| 04/12/1989 | EP0311132A2 Straight guide driving device |
| 04/11/1989 | US4820049 Coating and method for testing plano and spherical wavefront producing optical surfaces and systems having a broad range of reflectivities |
| 04/05/1989 | EP0310235A2 Tracking laser interferometer |
| 04/04/1989 | US4818110 Method and apparatus of using a two beam interference microscope for inspection of integrated circuits and the like |
| 03/21/1989 | US4814604 Opto-electronic method and system for remote detection of physical magnitudes |
| 03/21/1989 | US4813783 Interferometer system for making length or angle measurements |
| 03/21/1989 | CA1251342A1 Cleaved-coupled-cavity-laser-driven system for measuring small signals |
| 03/14/1989 | US4812042 Holographic interferometer |
| 03/09/1989 | WO1989002062A1 Signal processing apparatus |
| 03/09/1989 | WO1989002059A1 Straightness interferometer system |
| 03/08/1989 | EP0305438A1 Combined scale and interferometer. |
| 02/28/1989 | US4807997 Angular displacement measuring interferometer |
| 02/28/1989 | US4807996 Transient holographic indication analysis |
| 02/23/1989 | WO1989001612A1 Optical detection system |
| 02/22/1989 | EP0303642A1 Laser interferometer for the interferometric measuring of length. |
| 02/22/1989 | CN1003392B Solid state optical interferometer |
| 02/21/1989 | US4806778 Micro-displacement measuring apparatus using a semiconductor laser |
| 02/15/1989 | EP0303238A2 Non destructive process for identifying surface finishing irregularities and variations of internal tension of materials |
| 02/07/1989 | US4802765 Differential plane mirror having beamsplitter/beam folder assembly |
| 02/07/1989 | US4802764 Differential plane mirror interferometer having beamsplitter/beam folder assembly |
| 02/07/1989 | US4802727 Positioning optical components and waveguides |
| 02/01/1989 | EP0301048A1 Improvements relating to optical interferometers. |
| 01/17/1989 | US4798468 Interference apparatus for detecting state of wave surface |
| 01/11/1989 | EP0298899A2 Transient holographic indication analysis |
| 01/10/1989 | US4796994 Method and apparatus for measuring variations in distances |
| 01/04/1989 | EP0297254A1 Fine surface profile measuring apparatus |
| 01/04/1989 | EP0297243A2 Device to measure the distance between this device and a surface |
| 01/04/1989 | CN2030313U Internal monitor |
| 01/04/1989 | CN1030133A Microscope and projector with inclinable screen |
| 12/29/1988 | DE3720142A1 Holographic measuring device |
| 12/28/1988 | EP0296252A1 Optical measuring instrument |
| 12/28/1988 | CA1247360A Process and apparatus for the optical checking of the shape and dimensions of the ends of tubes in a steam generator |
| 12/22/1988 | DE3718327A1 Device for carrying out holographic interferometry |
| 12/15/1988 | WO1988009917A1 Optical modulation and measurement process |
| 12/13/1988 | US4791584 Sub-nyquist interferometry |
| 12/13/1988 | US4790651 Tracking laser interferometer |
| 12/13/1988 | US4790642 Integrated metrology for microlithographic objective reducing lens |
| 12/06/1988 | US4789240 Wavelength switched passive interferometric sensor system |
| 12/06/1988 | US4789125 Linear moving carriage |
| 11/29/1988 | US4787747 Straightness of travel interferometer |
| 11/29/1988 | US4787745 Conjugate interferometer |
| 11/17/1988 | EP0291366A1 Optical fibre Michelson interferometer and its use, especially in temperature measurement |
| 11/17/1988 | EP0290789A2 Device for measuring the distance between the device and a measuring surface |
| 11/15/1988 | US4784490 High thermal stability plane mirror interferometer |
| 11/15/1988 | US4784489 Fiber-optic based remote receiver for laser interferometer systems |
| 11/09/1988 | EP0290297A2 Rejection filter for optical signals and its application in ring interferometers |
| 11/09/1988 | EP0290128A2 Laser radar systems |
| 11/03/1988 | WO1988008519A1 Two-wavelength interferometry with optical heterodyne process |
| 11/02/1988 | EP0289225A2 A receiver for laser interferometer systems |
| 10/12/1988 | EP0286528A1 Integrated-optics displacement sensor |
| 10/11/1988 | US4776699 Optical measuring device |
| 10/11/1988 | US4776698 Interferometer |
| 09/28/1988 | EP0284304A1 Wavelength compensation in an interferometer system |
| 09/27/1988 | US4773759 Interferometer with Kerr effect compensation |
| 09/27/1988 | US4773732 Optical interferometric apparatus with an electrically controllable intensity transmission factor |
| 09/21/1988 | EP0283222A2 3-Dimensional vision system utilizing coherent optical detection |
| 09/14/1988 | EP0281906A2 Interferometer for measuring optical phase-differences |
| 09/07/1988 | WO1988006712A1 Combined scale and interferometer |
| 09/07/1988 | WO1988006711A1 Laser interferometer for the interferometric measuring of length |
| 09/07/1988 | EP0281385A2 Plane mirror interferometer |
| 09/06/1988 | US4768881 Method and apparatus for processing holographic interference patterns using Fourier-transforms |
| 08/31/1988 | CN87103678A Locater for measuring length by microscope |
| 08/25/1988 | DE3708295C1 Laser interferometer arrangement for measuring the axial play of two parts mounted so as to be capable of mutual rotation |
| 08/23/1988 | US4765741 Wavelength tracking compensator for an interferometer |
| 08/23/1988 | US4765189 Optical system for in-plane strain measurement using electronics speckle pattern interferometry |
| 08/17/1988 | EP0278714A2 Improvements in apparatus for the positional detection of objects |
| 08/16/1988 | US4764012 Device for determining the displacement of a tooth between two different examinations made on separate occasions |
| 08/16/1988 | US4763974 Δβ-Phase reversal coupled waveguide interferometer |
| 08/11/1988 | WO1988005903A1 Improvements relating to optical interferometers |
| 08/09/1988 | US4762416 Monomode optical fiber reciprocal ring interferometer device |
| 08/03/1988 | EP0276951A1 Apparatus and method for surface inspection |
| 07/26/1988 | US4759628 Wavelength scanning interferometry and interferometer employing laser diode |
| 07/19/1988 | US4758730 Method for examining the surface reliefs of a sample and apparatus for carrying out same |
| 07/19/1988 | US4758089 Holographic interferometer |
| 07/14/1988 | WO1988005152A1 Optical measuring instrument |