Patents for G01J 9 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength (4,525)
07/1987
07/08/1987EP0228315A1 Reciprocal ring interferometer with a monomode optical fibre
07/01/1987EP0227554A2 Differential plane mirror interferometer
06/1987
06/23/1987US4674871 Spectral analyzer and direction indicator
06/18/1987WO1987003683A1 Shearing phase difference sensor
06/16/1987EP0225590A2 Method and device for determining variations in thickness or orientation within a web of optically active material
06/09/1987US4671657 Method of and device for realtime measurement of the state of polarization of a quasi-monochromatic light beam
06/04/1987WO1987002785A3 Amplitude-weighting adaptive laser
06/03/1987EP0223855A1 Interference polarization refractometer
06/02/1987US4670646 Laser wavefront measurement device utilizing crossed Ronchi gratings
05/1987
05/19/1987US4667103 Universal wavefront sensor apparatus
05/19/1987US4666298 Sensing device for ascertaining imaging errors
05/07/1987WO1987002785A2 Amplitude-weighting adaptive laser
05/07/1987WO1987002768A1 Solid-state wavefront slope determination
04/1987
04/29/1987EP0220046A2 Interferometer
04/28/1987US4660978 Direct slope measurement shearing interferometer
04/21/1987US4659923 Fiber optic interferometer transducer
03/1987
03/31/1987US4653921 Real-time radial shear interferometer
03/24/1987US4652129 Interferometric detector with fibre-optic sensor
03/17/1987US4650330 Surface condition measurement apparatus
03/12/1987WO1987001438A1 A common optical path interferometric gauge
03/05/1987EP0148853A4 Quadature fiber-optic interferometer matrix.
03/03/1987US4647154 Optical image processor
02/1987
02/25/1987CN85106007A Polarized strip-scanning digital interferometer
02/24/1987US4645346 Device for analyzing and correcting wavefront surfaces in real time
02/17/1987US4643576 Fringe scanning shearing interferometer
02/03/1987US4640615 Liquid refractometer
01/1987
01/20/1987US4637725 Self-referencing Mach-Zehnder interferometer
01/20/1987US4637724 Shearing interferometer employing an acousto-optic cell
01/08/1987DE3523382A1 Interference arrangement for testing wavefronts
01/06/1987US4634870 Thermal image dynamic range expander
01/06/1987US4634852 Sensor using fiber optic interferometer
12/1986
12/09/1986US4627731 Common optical path interferometric gauge
12/09/1986US4627730 Optical scanning microscope
12/09/1986CA1215120A1 Optical heterodyne detection pulse receiving system and method
12/04/1986WO1986007162A1 Spectral analyzer and direction indicator and aircraft landing system application
12/03/1986EP0203682A2 Wavelength switched passive interferometric sensor system
12/03/1986EP0203530A2 Optical wavefront sensing system
11/1986
11/25/1986US4624569 Real-time diffraction interferometer
11/25/1986US4624566 Spectral analyzer and direction indicator
11/25/1986CA1214556A1 Method of and apparatus for measuring the transverse moments of the electromagnetic field associated with an optical beam
11/11/1986US4622642 Batch interference granulometric process particularly applicable to poly-dispersed biological particles
11/06/1986WO1986006481A1 Interference polarization refractometer
11/04/1986US4620790 System for determining optical aberrations of a telescope optical system
09/1986
09/17/1986EP0194941A2 Heterodyne interferometer system
09/16/1986CA1211544A1 Light frequency change detecting method and apparatus
09/10/1986EP0193742A2 Wavelength scanning interferometry and interferometer employing laser diode
08/1986
08/20/1986CN85101620A Tunable self-interelated measurement device for wavelength
08/12/1986US4606067 Device for recognizing far-away electro-magnetically radiating objects
08/06/1986CN85102287A Measure device for minimal optical path difference
08/05/1986US4603941 Polarization-maintaining fiber system and method of manufacturing the same
08/05/1986CA1208930A1 Frequency modulation-polarization spectroscopy method and device for detecting spectral features
07/1986
07/15/1986US4600307 Coherent radiation detecting apparatus
07/15/1986CA1207551A1 Sensor using fiber optic interferometer
07/03/1986WO1986003844A1 Spectral analyzer and direction indicator
06/1986
06/25/1986EP0185582A1 Interferometric sensor using optical fibres
06/17/1986US4595292 Apparatus for detecting coherent radiation and unequal path interferometers
06/17/1986CA1206203A1 Optical coherent detector and demodulator
06/10/1986US4594003 Interferometric wavefront measurement
06/10/1986US4594002 Apparatus for analyzing coherent radiation
04/1986
04/29/1986US4585940 Optical detector
04/22/1986US4583855 Optical phase measuring apparatus
03/1986
03/19/1986EP0174496A2 Procedure for measuring the radiation wavelength and the wavelength-corrected radiation power of monochromatical light-sources and arrangement for carrying out this procedure
03/18/1986US4577131 Piezoelectric micromotion actuator
03/11/1986US4575248 Wavefront sensor employing novel D.C. shearing interferometer
03/11/1986US4575247 Phase-measuring interferometer
02/1986
02/27/1986WO1986001301A1 Spectral analyzer and direction indicator
02/26/1986EP0172568A2 Method of and device for realtime measurement of the state of polarization of a quasi-monochromatic light beam
02/18/1986US4571085 Reflectometer based on optical cavity decay time
02/18/1986US4571080 Michelson interferometer with a photorefractive mirror
02/11/1986US4569588 Light frequency change detecting method and apparatus
01/1986
01/28/1986US4566794 Apparatus for interference fringe shift sensing
01/21/1986US4565449 Method of and apparatus for determining refractive-index profiles of cylindrical transparent bodies
01/15/1986EP0168270A1 Device for analyzing and correcting wavefront surfaces in real time
01/15/1986EP0167601A1 Interferometric diode array spectrometer
01/10/1986CN85100567A Method for measuring the frequency stability of laser beam
01/08/1986EP0167410A2 Optical scanning microscope
12/1985
12/27/1985EP0165816A2 Gas analysis apparatus and method
12/18/1985EP0165173A2 Device for analyzing and correcting wavefront surfaces in real time using a polarization interferometer
12/17/1985US4558952 Method for measuring an optical length of light path and a laser interferometer for carrying same into effect
12/17/1985US4558948 Process and apparatus for measuring wave surface distortions introduced by an optical system
11/1985
11/19/1985US4553841 Method of and apparatus for measuring thickness and refractive index of transparent bodies
11/19/1985US4553839 Frequency marking systems
11/06/1985EP0160352A2 Dual homodyne detection system to measure asymmetric spectrum by using angle mirrors
10/1985
10/29/1985CA1195858A1 Method of and apparatus for measuring the thickness and the refractive index of transparent materials
10/16/1985EP0158505A2 Active mirror wavefront sensor
10/16/1985EP0158172A2 Testing of arbitrary optical surfaces
09/1985
09/17/1985US4541720 Apparatus for phase symmetrizing optical wave fronts
08/1985
08/27/1985CA1192653A1 Echometry device and method
08/20/1985US4536089 Analyzer for coherent radiation
07/1985
07/24/1985EP0148853A1 Quadature fiber-optic interferometer matrix.
07/18/1985WO1985003122A1 Interferometric diode array spectrometer
07/10/1985EP0147534A1 Micromotion actuator
06/1985
06/26/1985EP0145936A2 Method of and apparatus for measuring the transverse moments of the electromagnetic field associated with an optical beam
06/19/1985EP0144510A1 Interferometric wavefront measurement
06/19/1985EP0144509A2 Fiber optic interferometer transducer
06/18/1985US4523847 Frequency modulation-polarization spectroscopy method and device for detecting spectral features
06/18/1985US4523846 Integrated optics in an electrically scanned imaging Fourier transform spectrometer
05/1985
05/21/1985US4518854 Combined shearing interferometer and Hartmann wavefront sensor
05/07/1985US4515478 Coherent light detecting system including passive averaging network
05/07/1985US4515430 Integrated optical transducers
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