Patents
Sitemap › G01 - Measuring; Testing › G01B - Measuring length, thickness or similar linear dimensions; Measuring angles; Measuring areas; Measuring irregularities of surfaces or contours › G01B 9 - Instruments as specified in the subgroups and characterised by the use of optical measuring means
Patents for G01B 9 - Instruments as specified in the subgroups and characterised by the use of optical measuring means (14,810)
04/1992
04/14/1992US5104226 Device for evaluating wrinkles in a double rolled seam
04/14/1992US5104223 Optical interferometric sensor detected intensity noise reduction means
04/14/1992US5103572 Feeler pin using an optical contact sensor
04/08/1992EP0478716A1 Semiconductor microactuator.
04/07/1992US5102214 Interferometer alignment control apparatus
04/01/1992EP0241512B1 A common optical path interferometric gauge
03/1992
03/25/1992EP0476914A2 Temperature stabilized broadband light source
03/25/1992EP0476800A2 Large signal three-level superfluorescent fiber sources
03/19/1992CA2051612A1 Stability compensated broadband source
03/19/1992CA2042255A1 Large signal three-level superfluorescent fiber sources
03/17/1992US5096296 Method for measuring optical path difference of an imbalanced interferometer in a system
03/12/1992DE4028051A1 Grating interferometer with diffraction screens in series - makes multiple use of resulting diffraction orders as multiple or non-polarised heterodyne interferometer or interference spectrometer
03/11/1992EP0314709B1 Two-wavelength interferometry with optical heterodyne process
03/10/1992US5094535 Scanning sensor system including an FT-IR interferometer
03/10/1992US5094534 Coherence selective fiber optic interferometric sensor system
03/05/1992WO1992003697A1 Optical apparatus
03/01/1992WO1992004655A1 Interferometer
03/01/1992WO1992004594A1 Interference microscope
03/01/1992CA2090682A1 Interference microscope
02/1992
02/26/1992CN2097392U Nanometre-stage displacement generator for scaling or examining
02/25/1992US5091983 Optical modulation apparatus and measurement method
02/13/1992DE4024977A1 Two beam interferometer with multiple scanning of reference beam - achieves compensation of errors by matching angle of incidence to number scans
02/12/1992EP0470710A2 Optical waveguide amplifier source gyroscope
02/11/1992CA1295713C Displacement transducer in integrated optics
02/05/1992EP0469718A2 Laser interferometry length measuring apparatus
01/1992
01/29/1992EP0468302A2 Device for the optical measurement of lengths
01/22/1992EP0467343A2 Optical heterodyne interferometer
01/19/1992CA2021450A1 Method for measuring optical path difference of an imbalanced interferometer in a system
01/15/1992EP0394219B1 Optical modulation and measurement process
01/14/1992US5080490 Equal path, phase shifting, sample point interferometer for monitoring the configuration of surfaces
01/02/1992DE4018664A1 Grid refractometer measuring refractive index and/or stabilising - has stable air gap for use as beam splitter for wavelengths of EM radiation in medium
12/1991
12/31/1991US5076695 Interferometer
12/31/1991US5076693 Optical contour measuring apparatus
12/26/1991CA2019894A1 Mine convergence monitor
12/18/1991EP0461780A2 Infrared holographic defect detector
12/18/1991EP0461773A2 Linear pitch, and yaw displacement measuring interferometer
12/18/1991EP0461233A1 Symmetrical carrier frequency interferometer
12/18/1991EP0461119A1 Device for interferometric measurement of surface structures
12/17/1991US5073018 Correlation microscope
12/12/1991CA2042092A1 Infrared holographic defect detector
12/10/1991US5071251 Wavelength independent interferometer
12/04/1991EP0458888A1 Interferometry.
12/03/1991US5069419 Semiconductor microactuator
12/03/1991CA1292777C Comb filter pressure temperature sensor
11/1991
11/27/1991EP0458752A2 Method for measuring the angle of incidence of a light beam, measuring device for carrying out the method, and distance measuring device utilising same
11/14/1991WO1991017564A1 Servo guided stage system
11/14/1991WO1991017409A1 Two axis plane mirror interferometer
11/12/1991US5064289 Linear-and-angular measuring plane mirror interferometer
11/12/1991US5064286 Optical alignment system utilizing alignment spot produced by image inverter
10/1991
10/30/1991CN1055820A Measurement method for phase and integer of phase of heterodyne interferometer signal processing
10/24/1991WO1991016597A1 Interferometry systems and methods
10/24/1991CA2080023A1 Interferometry systems and methods
10/17/1991WO1991013317A3 Interferometer to determine the position of or distance travelled by a movable measuring mirror or the like
10/16/1991EP0452283A2 Coded-fringe interferometric method and device for wavefront detection in optics
10/16/1991EP0303642B1 Laser interferometer for the interferometric measuring of length
10/15/1991US5056921 Optical apparatus for use with inteferometric measuring devices
10/09/1991EP0450246A1 Optical distance measurement device
10/08/1991US5055695 Alignment system and method for infrared interferometer
10/08/1991US5054925 Method for aligning an interferometer
10/08/1991US5054924 Method for extracting long-equivalent wavelength interferometric information
10/08/1991US5054923 Fiber optic gyro using a pulsed light source
10/03/1991WO1991014921A1 Dynamic lateral shearing interferometer
10/03/1991WO1991014920A1 Integrated acousto-optical heterodyne interferometer
10/02/1991EP0449335A2 Interferometer
10/02/1991EP0448751A1 Integrated acoustooptic heterodyne interferometer
09/1991
09/19/1991WO1991014188A1 Method and apparatus for locating objects
09/17/1991US5048966 Apparatus and system for linewidth measurements
09/17/1991US5048964 Phase-stepping interferometry
09/05/1991WO1991013317A2 Interferometer to determine the position of or distance travelled by a movable measuring mirror or the like
09/05/1991DE4006407A1 Optische vorrichtung Optical device
09/04/1991EP0444526A2 Optical device
09/04/1991EP0305438B1 Combined scale and interferometer
08/1991
08/28/1991EP0443477A1 Michelson type interferometer for the generation of optical path differences
08/22/1991WO1991012487A1 Interferometer
08/20/1991US5041726 Infrared holographic defect detector
08/14/1991EP0441153A2 Procedure and device for absolute interferometric testing of flat surfaces
08/14/1991DE4103914A1 Interferometer for detecting optical wavelength variations - has waveguides providing measuring arm and 2 reference arms of differing optical wavelength
08/13/1991US5039223 Interferometer for measuring aspherical form with the utilization of computer generated hologram
08/07/1991EP0440577A1 Interferometric measurement arrangement
08/07/1991EP0439534A1 Photon scanning tunneling microscopy.
08/06/1991CA1287388C Broadband optical detection of transient motion from a scattering surface
07/1991
07/31/1991EP0438675A2 Interferometric sensor to measure distance-variations of a small surface
07/24/1991EP0288562B1 Method and apparatus for measuring magnification power of a magnifying aid
07/23/1991US5033855 Fizeau interference measuring method and apparatus therefor
07/16/1991US5032026 Interferometric sensor and use thereof in an interferometric device
07/11/1991WO1991010109A1 Symmetrical carrier frequency interferometer
07/03/1991EP0434855A1 Position-measuring device
07/03/1991EP0434854A1 Device with at least one optical fibre coupler
07/02/1991US5028137 Angular displacement measuring interferometer
06/1991
06/27/1991WO1991009271A1 Interferometer head and interferometer arrangement using it
06/25/1991US5026163 Straightness interferometer system
06/19/1991EP0433008A2 Laser interferometric measuring apparatus
06/19/1991CN1052369A Multi-way reused laser frequency modulation heterodyne interfere optical fiber measuring instrument
06/15/1991CA2005719A1 Method and apparatus for determining the sign of the direction of a particle stream
06/13/1991DE4035285A1 Locating reference points in interferometer - by additional evaluation of white light interference and null crossing evaluation of direct component-free signals
06/12/1991EP0431792A2 Laser interferometer
06/11/1991US5022762 Apparatus for optically inspecting printer die motifs
06/05/1991CN1051975A Non-contaction survey instrument with three dimension surface shape
06/04/1991US5020912 Fiber optic rotation sensing system and method for basing a feedback signal outside of a legion of instability
05/1991
05/28/1991US5018865 Photon scanning tunneling microscopy
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