Patents
Patents for G01B 9 - Instruments as specified in the subgroups and characterised by the use of optical measuring means (14,810)
01/1981
01/07/1981EP0021945A1 Monomode fibre-optic hydrophone functioning by the elasto-optic effect
01/07/1981EP0021148A1 Method and device for interferometric measurement
01/06/1981US4243323 Interferometer
12/1980
12/24/1980WO1980002882A1 Process and device for optical treatment of objects by intercorrelation with rings
11/1980
11/18/1980US4234256 Determining depth location of separations within a tire
11/11/1980US4232968 Optical comparator with 3-D image
09/1980
09/30/1980US4225240 Method and system for determining interferometric optical path length difference
09/30/1980US4225238 Tire checking device
09/30/1980US4225237 Tire checking apparatus
09/09/1980US4221486 Interferometric measurement with λ/4 resolution
08/1980
08/05/1980US4215938 Method and apparatus for correcting the error of a position measuring interferometer
07/1980
07/22/1980US4213704 Method and apparatus for sensing the position of a writing laser beam
07/15/1980US4212536 Holographic subtraction with phase modulation to distinguish phase and amplitude differences
07/09/1980EP0012748A1 Interferometer systems.
06/1980
06/11/1980EP0011708A1 Method and device for measuring the evenness, roughness or curvature radius of an area to be measured
06/03/1980US4205917 Method of utilizing interferometric information from two different holograms exposed with short interval
05/1980
05/27/1980US4204655 Broadband interferometer and direction finding missile guidance system
05/06/1980US4201473 Optical interferometer system with CCTV camera for measuring a wide range of aperture sizes
04/1980
04/22/1980US4199544 Read-off device for medical samples
04/08/1980US4197010 Length standard comparison method and apparatus utilizing holographic interferrometry
03/1980
03/04/1980US4191476 Optical inspection
02/1980
02/12/1980US4188124 Interferometric measuring system
02/12/1980US4188122 Interferometer
02/12/1980US4188119 Two-coordinate length measuring device for microscopic instruments
01/1980
01/23/1980EP0007315A1 Optical apparatus and method for producing same
01/23/1980EP0006945A1 Method and apparatus for sensing in-plane deformation of a surface
01/22/1980CA1070150A1 Interferometric technique for determining ultrasonic wave intensity
12/1979
12/25/1979US4180328 Interferometer which corrects for spurious vibrations
12/25/1979US4180324 Method and apparatus for measuring deformation of a workpiece surface responsive to ultrasonic energy
10/1979
10/30/1979US4172662 Eyepiece for measurement of lengths and angles by a microscope
10/23/1979US4171914 Hologram apparatus for testing welds
09/1979
09/25/1979US4168912 Optical comparator
09/11/1979US4167337 Interferometric apparatus and process
09/04/1979CA1061538A1 Optical apparatus for measuring article dimension by means of a light beam
08/1979
08/21/1979US4165182 System for obtaining displacement-amplitude information from a quadrature-dual interferometer
08/09/1979WO1979000506A1 Interferometer systems
07/1979
07/12/1979WO1979000433A1 Optical apparatus and method for producing same
06/1979
06/14/1979WO1979000320A1 Method and apparatus for sensing in-plane deformation of a surface
05/1979
05/15/1979CA1054361A2 Method of measuring the parameters of optical fibers
05/08/1979US4153370 Microinterferometer transducer
04/1979
04/17/1979US4149801 Method and apparatus for measuring aspheric contact lens surfaces
04/17/1979CA1052564A2 Method for measuring the parameters of optical fibers
04/03/1979US4147433 Contour inspection
02/1979
02/20/1979CA1048806A1 Rotating-compensator ellipsometer
01/1979
01/09/1979US4133612 Endless fiber interferometer rotary motion sensor
10/1978
10/31/1978US4123170 Apparatus for detecting defects in patterns
10/17/1978US4120588 Multiple path configuration for a laser interferometer
10/03/1978US4118124 Holographic shearing interferometer
09/1978
09/26/1978US4116055 Tire inspecting apparatus
09/05/1978US4111557 Method for the optical determination and comparison of shapes and positions of objects, and arrangement for practicing said method
08/1978
08/08/1978US4105340 Optical comparator and inspection apparatus
08/08/1978US4105336 Electro-optical device for use in improved interferometers
08/08/1978US4105335 Interferometric optical phase discrimination apparatus
07/1978
07/18/1978US4101612 During extrusion
06/1978
06/20/1978US4095899 Apparatus for double-beaming in fourier spectroscopy
05/1978
05/16/1978US4089607 Optical interferometer
05/02/1978US4086808 Motion detection and measurement
04/1978
04/18/1978US4084427 Holographic recording instrument for structural integrity verification and other applications
03/1978
03/14/1978US4078864 Method and apparatus for viewing and measuring damage in an inaccessible area
02/1978
02/21/1978US4074937 Optical measuring device
02/07/1978US4072967 Stereoscopic projection microscopy
02/07/1978US4072423 Light interference device with low degree of spacial coherence
02/07/1978US4072422 Apparatus for interferometrically measuring the physical properties of test object
12/1977
12/06/1977US4061425 High resolution alignment interferometer
11/1977
11/08/1977US4057258 Measuring arrangement
11/01/1977US4056323 Interferometer optical system
10/1977
10/25/1977US4055376 Calibration reticle for measuring microscopes
10/18/1977US4054387 Measuring with microscope
10/11/1977US4053231 Interferometer mirror tilt correcting system
09/1977
09/27/1977US4050818 Method for determining changes in spacing between two positions of interest
09/20/1977US4049336 Pulsed holographic system having independent universal beam adjustment
09/06/1977US4046477 Interferometric method and apparatus for sensing surface deformation of a workpiece subjected to acoustic energy
08/1977
08/30/1977US4045141 Photoelectric microscope
08/23/1977US4043671 Laser system preset unit
08/09/1977US4040746 Optical congruence comparator
07/1977
07/26/1977US4037968 Method and apparatus for measuring a dimension of an object in a defined space by scanning with a light beam
07/05/1977US4033181 Method for destructionless proofing of viscoelastic products
06/1977
06/07/1977US4027976 Optical interferometer
06/07/1977US4027942 Micrometer microscope with binocular viewing
05/1977
05/24/1977US4025198 Opposite-sides object inspection system
05/17/1977US4023906 Compact three-beam interferometer
05/10/1977US4022532 Sample point interferometric system for optical figure monitoring
04/1977
04/26/1977US4019818 Interferometric technique for determining ultrasonic wave intensity
04/19/1977US4018531 Speckle pattern interferometer
03/1977
03/29/1977US4014613 Method and apparatus for determining changes in spacing between two positions of interest
03/22/1977US4013366 Method and apparatus for investigation of small displacements of a solid body by means of coherent light
03/01/1977US4009940 Apparatus for producing optical interference pattern with continuously variable fringe spacing
02/1977
02/01/1977US4005939 Optical comparator for testing printed circuit boards
02/01/1977US4005936 Interferometric methods and apparatus for measuring distance to a surface
12/1976
12/21/1976US3998553 Device and method for testing high reflectivity autostigmatic optical elements and systems
09/1976
09/28/1976US3982835 Interferometric system
08/1976
08/24/1976US3976380 Holographic arrangement for testing materials without destroying same
08/24/1976US3976379 Interferometers
08/17/1976US3975100 Method and apparatus for improving the accuracy of measuring the length of a gaging standard by laser interferometer means
07/1976
07/20/1976US3970390 Multifrequency laser oscillator for holographic contouring
07/20/1976US3970389 Variable frequency interferometer
05/1976
05/25/1976US3958884 Interferometric apparatus
05/11/1976US3955880 Infrared radiation modulator
05/04/1976US3955083 Interferometric device for encoding shaft angles
04/1976
04/27/1976US3953129 Testing and inspecting lens by holographic means