| Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356) |
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| 06/26/1991 | EP0434567A1 Method for calibrating an optical instrument, and its applications |
| 06/26/1991 | EP0434281A2 Apparatus and method for determining elastic properties of optical fiber by contact area measurement |
| 06/25/1991 | US5026141 Structural monitoring system using fiber optics |
| 06/22/1991 | CA2031442A1 Optical fibre monitoring |
| 06/19/1991 | EP0433020A2 Method of detecting and characterizing anomalies in a propagative medium |
| 06/13/1991 | DE4007152C1 Fibre reinforced laminate impact point detection - by coating initiator, dye and inhibitor changing colour on impact, for simple, reliable process |
| 06/11/1991 | US5023445 Signal acquisition method and automatic masking system for an OTDR |
| 06/11/1991 | US5022753 Modified Foucault method for uniquely profiling an imaging device |
| 06/11/1991 | US5022752 Echo cancelling circuit for use with laser |
| 06/05/1991 | EP0429520A1 Orientating optical fibres. |
| 06/05/1991 | EP0429479A1 Process and device for testing optical fibres transmitting light energy. |
| 06/04/1991 | US5020905 Application of the Foucault knife-edge test to a segmented optic |
| 05/30/1991 | WO1991008452A1 Liquid crystal device for calibration and testing of optical instruments |
| 05/30/1991 | CA2072742A1 Liquid crystal device for calibration and testing of optical instruments |
| 05/29/1991 | EP0429332A1 Method and device for determining characteristics of a lens, in particular, of its power |
| 05/29/1991 | EP0258437B1 Device for checking the lighting installation of transport vehicles |
| 05/28/1991 | US5019780 Method and apparatus for monitoring optical fibers during payout |
| 05/28/1991 | US5018861 Methods and means for full-surface interferometric testing of grazing incidence mirrors |
| 05/22/1991 | EP0278956B1 Apparatus for measuring properties of a laser emission |
| 05/21/1991 | US5016476 Optical fiber bending stress proof tester |
| 05/14/1991 | US5015867 Apparatus and methods for measuring the diameter of a moving elongated material |
| 05/14/1991 | US5015859 Method and apparatus for detecting wear |
| 05/14/1991 | US5015096 Method and apparatus for testing optical components |
| 05/14/1991 | US5015067 Optical fiber power output measuring means |
| 05/08/1991 | EP0426117A2 A method for calibrating an optical attenuator |
| 05/08/1991 | CN1051248A Tester for amount of information on optical fibre panel |
| 05/07/1991 | US5013908 Break detection system using optical fibers having unique frequency modulated light |
| 05/07/1991 | US5013907 Optical time domain testing instrument |
| 05/02/1991 | EP0425118A2 Method and apparatus for monitoring optical fibers during payout |
| 05/02/1991 | EP0424702A2 Apparatus and process for testing the payout of an optical fiber from a canister |
| 05/02/1991 | EP0424643A2 Apparatus and methods for testing optical communications networks |
| 04/30/1991 | US5012087 Fiber optic safety system |
| 04/30/1991 | US5011259 Method for aligning two waveguide fiber ends and an apparatus for performing the method |
| 04/30/1991 | CA1283644C Headlamp assembly |
| 04/25/1991 | CA2025141A1 Apparatus and methods for testing optical communications networks |
| 04/24/1991 | EP0424174A2 Production of images using an array of light emitting diodes |
| 04/24/1991 | EP0423437A2 Method and device for testing optical fibers |
| 04/24/1991 | CA2026172A1 Method and apparatus for monitoring optical fibers during payout |
| 04/23/1991 | US5009479 Optical fiber coupling device and method for its use |
| 04/21/1991 | CA2028051A1 Production of images using an array of light emitting diodes |
| 04/18/1991 | DE4032967A1 Monitoring optical fibres conducting high power laser beams - measuring intensity losses before and after beam passes through fibre by photosensors |
| 04/16/1991 | US5008545 High resolution optical fault locator |
| 04/16/1991 | US5007734 Apparatus for measuring the refraction characteristics of ophthamological lenses |
| 04/10/1991 | EP0421657A2 Measurement of optical attenuation along the length of bent optical fibers |
| 04/10/1991 | EP0421135A2 Method and process for determining the position and diameter of a laser beam focus, used for workpieces machining with a high power laser |
| 04/06/1991 | CA2024117A1 Measurement of optical attenuation along the length of bent optical fibers |
| 04/02/1991 | US5004346 Method of examining an optical component |
| 04/02/1991 | US5004337 Modified Foucault for testing an imaging device in terms of the encircled energy test |
| 03/27/1991 | EP0418509A2 Calibration of a lightwave component analyzer for testing optical devices |
| 03/20/1991 | EP0418054A2 Apparatus for evaluating a lens |
| 03/19/1991 | US5000568 Spread spectrum optical time domain reflectometer |
| 03/19/1991 | US5000540 Sensing system using optical fibers |
| 03/13/1991 | EP0416408A2 Checking device for endoscope equipment |
| 03/12/1991 | CA1281378C Apparatus for and method of measuring and/or controlling the useof fiber optic conductors |
| 03/06/1991 | EP0414770A1 A fixture for supporting objects so that the objects will be absolutely firm. |
| 03/05/1991 | US4997277 Optical fiber evaluation method and system |
| 03/05/1991 | US4997276 Apparatus and method for determining elastic properties of optical fibers by contact area measurement |
| 03/05/1991 | US4996884 Light waveguide sensor for small pulling or pressing forces |
| 02/26/1991 | US4996420 Measurement of optical attenuation along the length of bent optical fibers |
| 02/26/1991 | CA1280824C Method of and apparatus for the measurement of mode field radius in single mode fibres |
| 02/19/1991 | WO1991002959A1 Optical communications system |
| 02/19/1991 | US4994679 Method of measuring the eccentricity of a waveguide embedded in a cylindrical connector pin |
| 02/19/1991 | US4994675 Method and apparatus for checking continuity of optic transmission |
| 02/19/1991 | US4993831 Closed loop Foucault knife-edge test |
| 02/19/1991 | CA2064789A1 Optical communications system |
| 02/13/1991 | EP0412357A2 Lightwave test set for an rf network analyzer system |
| 02/12/1991 | US4991791 Winding |
| 02/06/1991 | EP0411956A2 Optical measurement system |
| 02/05/1991 | US4990895 Method and apparatus for testing photoelectric circuits |
| 02/05/1991 | US4990770 Measuring arrangement for testing a plurality of light waveguides |
| 02/05/1991 | US4989971 Automatic mask trigger for an optical time domain reflectometer |
| 01/30/1991 | EP0409932A1 Apparatus and method for detecting defects in an optical fiber. |
| 01/29/1991 | US4988203 Device for inspecting an interference filter for a projection television display tube |
| 01/29/1991 | US4988194 Optical storage inspection unit calibration disk |
| 01/24/1991 | DE3922868A1 Testing optical back scatter measurement devices - feeds optical test signals of different magnitude via variable damping element and comparing power meter output |
| 01/22/1991 | US4986627 Method for connecting optical fibres without Fresnel reflection and system thus detained, variable optical attenuator and system using this attenuator to measure the effect of the reflection coeficient on an optical line |
| 01/15/1991 | US4984884 Method for measuring dispersion characteristics of an optical fiber |
| 01/09/1991 | EP0407010A2 Detection of splices in an optical fiber |
| 01/09/1991 | EP0407009A2 Estimation of fiber loss and return signal power |
| 01/08/1991 | US4983037 Optical fiber |
| 01/02/1991 | EP0405553A2 Optical time domain reflectometer using optical element with three control modes of oscillation, attenuation and amplification |
| 01/01/1991 | US4981334 Compact optical fiber coupler |
| 01/01/1991 | US4981333 Universal launch cable assembly and integrated idealized light source system using same |
| 12/27/1990 | WO1990015979A1 Optical time domain reflectometry |
| 12/27/1990 | WO1990015978A1 Device and process for investigating the damping cycle of a light-waveguide |
| 12/25/1990 | US4979819 Foucault knife-edge test for quantitatively determining a wavefront aberration over the entire surface of an optical imaging device |
| 12/23/1990 | WO1990015980A1 Optical time domain reflectometry |
| 12/20/1990 | DE3920169A1 Einrichtung und verfahren zur untersuchung des daempfungsverlaufs eines lichtwellenleiters Device and method for investigation of daempfungsverlaufs a light wave conductor |
| 12/19/1990 | EP0403094A2 Method of measuring backscattered light, and device for same measuring |
| 12/18/1990 | US4978201 Method for measuring splice loss of an optical fiber |
| 12/13/1990 | DE4018005A1 Optics with grating for testing spectacle lenses |
| 12/13/1990 | DE4018004A1 Optics with grating and separator for testing spectacle lenses - has data processor evaluating image by registering phase along beam path |
| 12/05/1990 | EP0400912A2 Optical fiber coating control |
| 12/05/1990 | EP0400832A2 Improved method and apparatus for flight payout testing of optical fibers |
| 12/05/1990 | EP0400408A2 Method for aligning two fibre ends and apparatus for its implementation |
| 12/04/1990 | US4975573 Optical test bench |
| 11/29/1990 | WO1990014575A1 Method and apparatus for examining and measuring soft contact lenses |
| 11/27/1990 | US4973343 Optical fiber coating control apparatus |
| 11/27/1990 | US4973155 Method of aiming adjustment for headlights of automotive vehicles |
| 11/20/1990 | US4972073 Light wave conductor-bending sensor with sliding rails for monitoring bridge structures or the like |