| 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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| 07/18/1990 | EP0316356B1 Improvements in or relating to measuring |
| 07/18/1990 | CA2008095A1 Opto-electronic measuring device |
| 07/17/1990 | US4941744 Integrated-photocircuit interferometer |
| 07/04/1990 | EP0376449A1 Interferometer |
| 07/03/1990 | US4938596 Phase conjugate, common path interferometer |
| 06/19/1990 | US4934815 Aperture sampling coherence sensor and method |
| 06/13/1990 | EP0190184B1 Interferometric sensor |
| 06/13/1990 | DE3841742A1 Coordinate probe employing a contactless measuring principle of absolute interferometry |
| 06/12/1990 | US4932780 Interferometer |
| 06/05/1990 | US4930894 For measuring the change in optical path length of an optical beam |
| 05/29/1990 | US4929077 Interferometric range finder |
| 05/17/1990 | WO1990005282A1 Interferometer |
| 05/15/1990 | US4926040 Shift sensor with optic fiber |
| 05/10/1990 | DE3837593A1 Wavelength stabilisation |
| 05/09/1990 | EP0366756A1 Broadband optical fiber laser |
| 05/08/1990 | US4924477 Assembly and method for determining the coefficient of thermal expansion of a workpiece |
| 05/03/1990 | WO1990004753A1 Photon scanning tunneling microscopy |
| 05/03/1990 | DE3836174A1 Opto-electronic circuit arrangement, especially for length measurement, and method for the operation of an interferometer |
| 05/01/1990 | CA2001914A1 Interferometer |
| 04/25/1990 | EP0364984A2 Interferometer using multi-mode semiconductor laser |
| 04/19/1990 | DE3825606A1 Compact construction of a Michelson interferometer for the measurement of changes in length and in refractive index |
| 04/17/1990 | US4918492 Michaelson optical fiber interferometer and its application in particular in the measurement of temperatures |
| 04/04/1990 | CN1041035A Laser measuring equipment and method for precision measurement of linearity |
| 04/03/1990 | US4913549 Method and apparatus for realtime-monitoring astronomical object with speckle interferometry |
| 04/03/1990 | US4913547 Optically phased-locked speckle pattern interferometer |
| 03/27/1990 | US4912530 Optical heterodyne measuring apparatus |
| 03/22/1990 | WO1990002930A1 Interferometry |
| 03/21/1990 | EP0359157A2 Symmetric two-way device to measure lengths with an interferometer |
| 03/20/1990 | US4910561 Method and apparatus for detecting profile error of article surface |
| 03/20/1990 | US4909629 Light interferometer |
| 03/14/1990 | EP0357695A1 Optical apparatus for use with interferometric measuring devices. |
| 03/13/1990 | US4907886 Method and apparatus for two-wavelength interferometry with optical heterodyne processes and use for position or range finding |
| 03/07/1990 | EP0148853B1 Quadature fiber-optic interferometer matrix |
| 02/14/1990 | EP0354732A2 Optical transducer systems |
| 02/13/1990 | US4900151 Device for measuring the distance between the device and a measuring surface |
| 02/07/1990 | EP0353647A2 Device to measure the rotation angle or the rotational position of a rotating object |
| 02/07/1990 | EP0353495A2 Arrangement for obtaining an optical image contrast |
| 01/30/1990 | US4896936 Component mounted to substrate with overlying bridge-shaped supporte |
| 01/24/1990 | EP0352004A2 Method and apparatus for endpoint detection in a semiconductor wafer etching system |
| 01/23/1990 | US4896032 Active boresight drift measurement and calibration apparatus |
| 01/11/1990 | DE3835892C1 Long-path laser interferometer |
| 01/09/1990 | US4892406 Method of and arrangement for measuring vibrations |
| 01/02/1990 | US4890921 For measuring the movement of sites on a test structure |
| 12/28/1989 | DE3918812A1 Distance-measuring heterodyne interferometer |
| 12/28/1989 | DE3918811A1 Heterodyne interferometer |
| 12/20/1989 | EP0347277A1 Interferometric sensor and its use in an interferometric system |
| 12/19/1989 | US4887899 Apparatus and method for electronic analysis of test objects |
| 12/13/1989 | EP0346213A2 Enlarged-range measuring device for the non-reciprocal phase shift produced in a ring interferometer, and measuring process |
| 12/13/1989 | EP0258409A4 Economical spectrometer unit having simplified structure. |
| 12/12/1989 | US4886365 Distance measuring device |
| 12/12/1989 | US4886363 Quadratic frequency modulated absolute distance measuring interferometry |
| 12/12/1989 | US4886362 Appratus for measuring the profile of an aspherical surface |
| 12/12/1989 | US4886353 Measuring device employing laser interferometry |
| 12/05/1989 | CA1263548A1 Holographic gear test method |
| 11/28/1989 | US4883357 Dual high stability interferometer |
| 11/23/1989 | EP0342885A2 Laser interferometer with optical feedback isolation |
| 11/22/1989 | CN1037392A Microcomputerized 4-coordinate measuring system of universal tool microscope |
| 11/21/1989 | US4881816 Linear and angular displacement measuring interferometer |
| 11/21/1989 | US4881815 Linear and angular displacement measuring interferometer |
| 11/15/1989 | EP0341960A2 Method for improving performance of a laser interferometer in the presence of wavefront distortion |
| 11/02/1989 | EP0339625A1 Broadband optical detection of transient motion from a scattering surface |
| 10/25/1989 | EP0338902A1 Optical fibre displacement sensor |
| 10/11/1989 | CN2045841U Non-contact type laser comparing interferometer |
| 10/10/1989 | US4872756 Dual path interferometer with varying difference in path length |
| 10/10/1989 | US4872755 Interferometer for measuring optical phase differences |
| 10/05/1989 | WO1989009506A1 Broadband optical fiber laser |
| 10/05/1989 | WO1989009380A1 Optical measuring apparatus and method |
| 10/03/1989 | US4871255 Optical nondestructive testing method of composite materials |
| 10/03/1989 | US4871252 Method and apparatus for object positioning |
| 10/03/1989 | US4871244 Movable member mounting |
| 09/27/1989 | EP0333822A1 Optical devices for interferometric measuring systems |
| 09/27/1989 | EP0333783A1 Straightness interferometer system |
| 09/26/1989 | US4870635 Precision measurement and positioning system for disk storage system |
| 09/26/1989 | CA1261449A1 Monomode optical fiber reciprocal ring interometer device |
| 09/21/1989 | DE3839928A1 Binocular tube (body) for measuring microscopes |
| 09/21/1989 | DE3839187A1 Interferometric length measuring device |
| 09/20/1989 | EP0332721A1 Method and device for the measurement of internal stresses in narrow metallic strips |
| 09/20/1989 | CN1005217B Optical detector for displacement measuring |
| 09/19/1989 | US4867565 Opto-electronic detection device for remotely detecting a physical magnitude |
| 09/19/1989 | US4867532 Wavelength selection device having a diffraction grating mounted on a torsion member |
| 09/12/1989 | US4865453 Displacement transducer in integrated optics |
| 09/12/1989 | US4865450 Dual photoelastic modulator heterodyne interferometer |
| 09/12/1989 | US4865449 Optical signal rejection filter and application of said filter to ring interferometers |
| 09/08/1989 | WO1989008238A1 Comb filter pressure/temperature sensing system |
| 08/24/1989 | WO1989007383A2 Length measuring method by using laser beams |
| 08/23/1989 | EP0328611A1 Signal processing apparatus |
| 08/22/1989 | US4859844 Comb filter pressure/temperature sensing system |
| 08/22/1989 | US4859066 Linear and angular displacement measuring interferometer |
| 08/22/1989 | US4859061 Flatness examining device |
| 08/22/1989 | US4859060 Variable interferometric device and a process for the production of the same |
| 08/15/1989 | CA1258383A1 Wavelength switched passive fiber interferometric sensor |
| 08/09/1989 | EP0326603A1 Optical detection system |
| 08/08/1989 | US4854658 Radiation deflector assembly |
| 08/03/1989 | DE3801110A1 Method and device for producing coherent electrical magnetic radiation from two spectrally closely adjacent, linear-polarised wavelengths, whose polarisation directions are oriented orthogonally with respect to one another |
| 07/27/1989 | WO1989006781A1 A method and apparatus for measuring optical distances |
| 07/27/1989 | DE3801308A1 Apparatus for the non-destructive testing of vehicle tyres |
| 07/19/1989 | EP0324708A2 Method of and arrangement for measuring vibrations |
| 07/18/1989 | US4848907 Method of and apparatus for analyzing interference fringes |
| 07/11/1989 | US4847511 Device for measuring rectilinear motion |
| 07/11/1989 | US4846930 Optical apparatus |