Patents
Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356)
05/1987
05/27/1987EP0223332A2 Test instrument for optical fibres
05/20/1987EP0222468A2 Method and apparatus for measuring single mode fiber mode field radius
05/20/1987EP0222378A2 Method of and apparatus for the measurement of mode field radius in single-mode fibres
05/14/1987DE3537342A1 Method and device for determining the radiation losses of glass fibre connections, in particular of monomode fibre connections
05/12/1987US4664732 Precise alignment and coupling
05/12/1987US4664522 Optical waveguide spectrum analyzer and method
05/12/1987US4664516 Method of and apparatus for the measurement of the refractive-index profile in monomode optical fibres
05/07/1987WO1987002768A1 Solid-state wavefront slope determination
05/05/1987US4662744 Method of and apparatus for measuring transverse moments of an electromagnetic field associated with an optical beam
05/05/1987US4662743 Method of measuring the geometry of optical fibers
04/1987
04/28/1987US4660973 Arrangement for locating faults in an optical information transmission system
04/21/1987US4659217 Determining splice attenuation
04/21/1987US4659216 Optical fibre reflectometer
04/21/1987US4659215 Optical fiber test method and apparatus
04/16/1987DE3536374A1 Transmitted-light method for measuring housings and components
04/14/1987US4658391 Focus error detection device for an optical recording/playing back system
04/14/1987US4657388 Method of and apparatus for measuring the cut-off wavelength of the first higher order mode in optical fibers
04/14/1987CA1220565A1 System and process for determining the basis weight of a low atomic number material in a mixture with a higher atomic number material
04/14/1987CA1220554A1 Method and apparatus for acoustic supervision of adjustment operations at optical devices
04/08/1987EP0216773A1 A method for detecting faults or breaks in optical fiber links
04/07/1987CA1220278A1 Method and apparatus for acoustic supervision of adjustment operations at optical devices
04/07/1987CA1220277A1 Method and apparatus for acoustical supervision of adjustment operations at optical devices
03/1987
03/31/1987US4654520 Structural monitoring system using fiber optics
03/31/1987US4653912 Inspection booth for substrates coated with a thin film
03/31/1987US4653909 Sinusoidal determination of limiting optical resolution
03/31/1987US4653855 Apparatus and process for object analysis by perturbation of interference fringes
03/31/1987US4653331 Test apparatus for uniform tensioning of long lengths of small cables in simulated environments
03/31/1987CA1219931A1 Method and apparatus for monitoring suitability of a transmission path for transmission of digital data signals
03/25/1987EP0215301A2 Optical measuring process
03/24/1987US4652123 Method and apparatus for measuring absolute fiber junction loss
03/24/1987CA1219465A1 Coherent reflectometer
03/11/1987EP0213872A2 Optical time-domain reflectometry
03/04/1987EP0212877A2 Optical coupler for an optical fibre
03/04/1987EP0212804A2 Multiple wavelength optical fiber measurement system
03/04/1987EP0212786A1 Laser/optical fiber safety apparatus and method
03/03/1987US4647195 Automotive headlamp testing method and apparatus
03/03/1987US4647158 Modifying coherent radiation
03/03/1987CA1218724A1 Device for detecting fractures in power transmission fibers
02/1987
02/26/1987DE3529974A1 Method for determining the optical power of the modes which can be guided and emerge from the end of an optical waveguide
02/25/1987EP0211537A1 Apparatus for coupling light between an optical fiber and a light element
02/25/1987CN85106007A Polarized strip-scanning digital interferometer
02/24/1987US4645171 Honeycomb tabletop
02/19/1987DE3528879A1 Adaptor
02/18/1987CN86105018A Multiple wavelength optical fiber measurement system
02/10/1987US4641964 Apparatus for measuring optical characteristics of optical systems
02/10/1987US4641962 Aberration measuring method
02/10/1987US4641961 Apparatus for measuring the optical characteristics of an optical system to be examined
02/10/1987CA1217864A Method and apparatus for determining attenuation across optical fiber splice
02/10/1987CA1217650A Method and apparatus for coating detection and surface evaluation
02/04/1987EP0210722A1 Apparatus for measuring the refractive power or radius of curvature of an optical system
02/04/1987EP0210341A2 Method and device for measuring coupling losses in single mode optical fibres
01/1987
01/28/1987EP0210003A2 Determining splice attenuation
01/27/1987US4639133 Method and apparatus for testing the power of a lens
01/27/1987US4639132 Direct determination of modulation transfer function by moire deflectrometry
01/27/1987US4639131 Device for measuring the static lives of optical fibers
01/27/1987US4639130 Inspection apparatus for optical fiber assembly
01/21/1987EP0209457A1 Method and device for determining the quality of an optical instrument, especially its transfer function
01/20/1987US4637720 Lens meter having a focusing indication system with divided-image registration focusing
01/20/1987CA1216759A1 Apparatus for measuring the refractive index of an optical fiber
01/14/1987EP0208011A1 Light coupling device for the optical reflectometry
01/13/1987US4637072 Method of measuring the dispersion of a transmitting optical fibre
01/13/1987US4636638 Remote optical crack sensing system including fiberoptics
01/13/1987US4636073 Semiconductors, hemispherical pads to simulate light scattering
01/13/1987US4636071 Method and apparatus for measuring single mode fiber mode field radius
01/13/1987US4636070 Apparatus for measuring the cut-off wavelength of a single-mode optical fiber
01/08/1987DE3524101A1 Method and device for continuously monitoring the state of wear of materials
01/06/1987US4634880 Confocal optical imaging system with improved signal-to-noise ratio
01/06/1987US4634275 Method of and apparatus for examining automotive headlamp
01/06/1987US4634274 Method and apparatus for determining attenuation across optical fiber splice
01/06/1987US4634217 High tensile wire provided with light guide sensor
01/06/1987CA1216168A1 Method in the signal processing of a received train of pulses, and a receiver for carrying out the process
01/02/1987DE3522179A1 Device for carrying out optical measurements on installed windscreens
12/1986
12/30/1986US4632545 Device for testing the beam-setting of motor vehicle headlights
12/30/1986US4632544 Optical cable testing
12/30/1986EP0206823A1 Soft contact lens analyzer
12/16/1986US4629318 Measuring device for determining cracks
12/16/1986US4629316 Attenuation across optical fiber splice
12/10/1986CN86200235U Nonlinear meter for laser detector
12/09/1986US4628414 Method of manufacturing and of adjusting the orientation of a motor vehicle headlamp; and a motor vehicle headlamp for performing said method
12/02/1986US4626685 Multispectral collimator with built-in-test
11/1986
11/25/1986US4624562 Signal generator for aligning optical fibers
11/25/1986CA1214556A1 Method of and apparatus for measuring the transverse moments of the electromagnetic field associated with an optical beam
11/19/1986CN86103565A Method of the measurement of light from an optical cable and arrangement therefore
11/18/1986US4623788 Fiber optic system with self test used in fire detection
11/18/1986US4623249 Container for an optical element
11/18/1986US4623218 Optical fibre cable and method of and apparatus for determining location of a break therein
11/05/1986EP0200072A1 Method and device for controlling the angular and lateral position of a vehicle light
11/04/1986US4620790 System for determining optical aberrations of a telescope optical system
10/1986
10/28/1986US4620267 Corrector device for automatically correcting the beam direction of vehicle headlamps to compensate for variations in vehicle trim
10/22/1986EP0198480A2 Optical fiber characteristic measurement
10/21/1986US4618975 Method and apparatus for analyzing a porous nonhomogeneous cylindrical object
10/21/1986US4618764 Fiber-optical pressure detector
10/21/1986US4618258 Method for measuring loop coupling efficiency
10/21/1986CA1213057A1 Method and apparatus for measuring absolute fiber junction loss
10/21/1986CA1213056A1 Method of measuring a spot size of a single-mode fiber
09/1986
09/30/1986CA1211955A1 Optical fiber proof testing equipment
09/23/1986US4613232 Measuring device for testing optical systems of an endoscope
09/16/1986US4611913 Method and apparatus for analyzing ophthalmic elements and the like
09/16/1986US4611378 Method of making a fiber optic strain sensor
09/10/1986EP0193897A2 Lens meter and method of measurement of progressive multifocal lens using the same