| Patents for G01B 9 - Instruments as specified in the subgroups and characterised by the use of optical measuring means (14,810) |
|---|
| 06/16/1993 | EP0546067A1 Interferometer. |
| 06/15/1993 | US5220406 Sample point interferometer having separate rigid body and figure measurement channels |
| 06/15/1993 | US5220405 Interferometer for in situ measurement of thin film thickness changes |
| 06/09/1993 | EP0545519A2 Non-contact measuring method for step difference and device therefor |
| 06/09/1993 | EP0545405A2 Rotary detector |
| 06/09/1993 | EP0526547A4 Interferometry systems and methods |
| 06/09/1993 | EP0489847A4 Interferometer utilizing superfluorescent optical source |
| 06/09/1993 | DE4139839A1 Measuring beat frequency variations between two single mode lasers for distance measurement - sweeping wavelength of at least one laser and measuring and evaluating resulting phase angle change |
| 06/08/1993 | US5218424 Flying height and topography measuring interferometer |
| 06/08/1993 | US5218423 Method and apparatus for generating a plurality of radiation beams from incident radiation in a multiple wavelength interferometer |
| 06/08/1993 | US5218418 Differential fiber optic sensor and method |
| 06/03/1993 | DE4139654A1 Contactless determination of centre dimensions of gauge block - using interferometer and calculating offset between light intensities of interference fringes of gauge block and slide plate |
| 06/01/1993 | US5216527 Holographic collation |
| 05/26/1993 | EP0420852B1 Interferometer |
| 05/18/1993 | US5212748 Fiber optic mixer and spectrometer |
| 05/13/1993 | WO1993009395A1 Process for measuring the inclination of boundary areas in an optical system |
| 05/13/1993 | WO1993009394A1 Measuring instruments |
| 05/12/1993 | EP0439534A4 Photon scanning tunneling microscopy |
| 05/11/1993 | US5210591 Interferometric ball bearing test station |
| 05/06/1993 | DE4135959A1 Verfahren zur messung der neigungen von grenzflaechen in einem optischen system A method for measuring the inclinations of boundary surfaces in an optical system |
| 05/05/1993 | EP0539877A1 Optical fiber having internal partial mirrors |
| 05/05/1993 | EP0539757A1 Optical type encoder |
| 05/05/1993 | EP0539609A1 Projection inspecting machine |
| 05/05/1993 | EP0539571A1 Dynamic shearing interferometer |
| 05/05/1993 | CN1020504C Holographic measuring material testing machine |
| 05/04/1993 | US5208451 Method and apparatus for automated focusing of an interferometric optical system |
| 04/29/1993 | WO1993008445A1 Method and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacings |
| 04/27/1993 | US5206924 Fiber optic Michelson sensor and arrays with passive elimination of polarization fading and source feedback isolation |
| 04/22/1993 | DE4134481A1 Operation microscope for computerised, stereo-tactile microsurgery - contains optical system data detectors, integral position detection system and process controller |
| 04/20/1993 | CA1316367C Interferometer for measuring optical phase differences |
| 04/15/1993 | WO1993007442A1 Two-beam interferometer apparatus and method and spectrometer utilizing the same |
| 04/14/1993 | EP0536655A1 Measuring method and measuring apparatus |
| 04/13/1993 | US5202939 Fabry-perot optical sensing device for measuring a physical parameter |
| 04/13/1993 | US5202745 For measuring an optical parameter of a device under test |
| 04/08/1993 | DE4208189A1 Laser interferometer calibration system using direct comparison - using laser interferometer used as standard and arrangement of triple reflectors including displaceable common triple reflector |
| 04/06/1993 | US5200797 Device for measuring the angle of rotation or of the angular position of a rotating object |
| 04/06/1993 | US5200796 Method and apparatus for detecting and measuring a physical magnitude |
| 04/01/1993 | DE4132113A1 Strain measurement pick=up for weighing appts. - operates on interferometer principle, and amplifies change in optical guide length by multiple reflections of beam |
| 03/31/1993 | EP0534795A2 Method and apparatus for producing multiple light beams in a multiple wavelength interferometer |
| 03/31/1993 | EP0534613A1 Device for supporting and linearly moving an object |
| 03/23/1993 | US5196903 Pulsed light source spectrometer with interferometer |
| 03/23/1993 | US5196902 Two-beam interferometer apparatus and method, and spectrometer utilizing the same |
| 03/16/1993 | US5194918 Method of providing images of surfaces with a correlation microscope by transforming interference signals |
| 03/16/1993 | US5194907 Displacement detecting apparatus |
| 03/09/1993 | US5192982 Coded-fringe interferometric method and device for wavefront detection in optics |
| 03/03/1993 | CN1069569A Positional measurement |
| 03/02/1993 | US5191391 High resolution plane mirror interferometer |
| 02/23/1993 | US5189489 Interferometric measurement device with non stabilized light source |
| 02/17/1993 | EP0527128A1 Two axis plane mirror interferometer |
| 02/16/1993 | US5187545 Integrated optical position measuring device and method with reference and measurement signals |
| 02/16/1993 | US5187543 Differential displacement measuring interferometer |
| 02/11/1993 | DE4126381A1 Mobile land mine identification equipment - transmits vibrations to ground and has photographing appts. working with holographic interferometry |
| 02/10/1993 | EP0526547A1 Interferometry systems and methods. |
| 02/10/1993 | EP0333822B1 Optical devices for interferometric measuring systems |
| 02/09/1993 | US5185749 Large signal three-level superfluorescent fiber sources |
| 02/03/1993 | EP0526292A1 System for the recording of a series of holograms |
| 02/03/1993 | EP0526291A1 Three-dimensional displacement measurement by means of holography |
| 02/03/1993 | EP0526075A2 Interferometric ball bearing test station |
| 02/03/1993 | EP0407454B1 Optical measuring apparatus |
| 02/02/1993 | US5184313 Conversion device for laser interferometic measuring apparatus |
| 02/02/1993 | US5184021 Method and apparatus for measuring the dimensions of patterned features on a lithographic photomask |
| 02/02/1993 | CA1313404C Broadband optical fiber laser |
| 01/28/1993 | DE4124223A1 Interferogram evaluation method with coherent noise effect suppression - producing phase plot from interferogram, shifting components, taking further plot and recording using coherent light |
| 01/26/1993 | US5182612 Method of measurement of an angle of incidence of a luminous beam, measuring device for carrying out the method and use of the device for the measurement of distances |
| 01/13/1993 | EP0522557A1 Optical heterodyne measuring method and apparatus |
| 01/07/1993 | EP0422155B1 Wavelength stabilization, in particular for interferometric measurement of length |
| 01/05/1993 | US5177566 Interferometer with environment sensitive static etalon |
| 01/05/1993 | US5177562 Stability compensated broadband source and fiber interferometer |
| 12/30/1992 | EP0520395A1 Optical heterodyne interference apparatus |
| 12/22/1992 | US5173744 Refractively scanned interferometer |
| 12/16/1992 | EP0517781A1 Interferometer to determine the position of or distance travelled by a movable measuring mirror or the like. |
| 12/15/1992 | US5172186 Laser interferometry length measuring an apparatus employing a beam slitter |
| 12/15/1992 | US5172185 Device for determining or stabilizing the wavelength of laser light in a gaseous ambient medium |
| 12/10/1992 | WO1992021934A1 Positional measurement |
| 12/09/1992 | CN1019416B Self-scanning photorectiifier array single-frequency laser interference length measuring method and measuring instrument |
| 12/08/1992 | US5170219 Optical heterodyne interference detecting apparatus for measuring displacement characteristic of workpiece |
| 12/08/1992 | US5170217 Object measuring apparatus using lightwave interference |
| 11/26/1992 | WO1992021057A1 Projection inspecting machine |
| 11/26/1992 | WO1992020991A1 Dynamic shearing interferometer |
| 11/25/1992 | EP0514579A1 A heterodyne interferometer arrangement |
| 11/24/1992 | US5166751 For measuring distance changes |
| 11/24/1992 | US5166749 Step scanning technique for interferometer |
| 11/24/1992 | US5166742 Optical deformation measuring apparatus by double-writing speckle images into a spatial light modulator |
| 11/23/1992 | WO1992021072A1 Step scanning technique for interferometer |
| 11/22/1992 | WO1992020990A1 Interferometric measuring device in integrated optics |
| 11/22/1992 | CA2102593A1 Interferometric device for determining the characteristics of an integrated optics object |
| 11/19/1992 | EP0513305A1 Apparatus for the measurement of surface shape. |
| 11/18/1992 | CN1019145B Multi-way reused laser frequency modulation heterodyne interference optical fiber measuring instrument |
| 11/17/1992 | US5164794 Optical reticle inspection system and method |
| 11/17/1992 | US5164792 Movement measuring interferometer and driving system |
| 11/17/1992 | US5164791 Minute displacement detector using optical interferometry |
| 11/17/1992 | US5164789 Method and apparatus for measuring minute displacement by subject light diffracted and reflected from a grating to heterodyne interference |
| 11/12/1992 | WO1992019930A1 Method and apparatus for optical imaging and measurement |
| 11/11/1992 | EP0512918A1 Device for measuring the refractive index of a fluid |
| 11/11/1992 | EP0512450A2 Wavelength variation measuring apparatus |
| 11/10/1992 | US5162872 Tilt/shear immune tunable fabry-perot interferometer |
| 11/10/1992 | US5162869 Apparatus and method having at least one waveguide coupler to create at least two signals having a mutual phase shift not equal to 180 degrees |
| 11/10/1992 | US5162648 Confocal scanning interference microscope using reference beam |
| 11/08/1992 | CA2068112A1 Measuring instrument of the index of refraction of a fluid |
| 11/05/1992 | DE4114407A1 Determining and fixing wavelength in air of light source - using control loop with many-valued characteristic with defined steps and evaluating thermodynamic parameters to eliminate ambiguity |