| Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356) |
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| 11/10/1981 | US4300239 Optical repeater monitoring system |
| 11/10/1981 | US4299482 Measurement of windscreen distortion using optical diffraction |
| 10/29/1981 | WO1981003070A1 Method of observing the core region of optical fibers and preforms |
| 10/28/1981 | EP0038563A2 Optical system with high coupling efficiency, in particular for attenuation measurement apparatuses employing the back-scattering technique |
| 10/28/1981 | EP0038401A1 Method of controlling the physical parameters of structural members |
| 10/13/1981 | EP0030542A4 Method for monitoring optical fiber processing. |
| 10/06/1981 | US4293223 Method and apparatus for controlling resonant frequency of an optical interferometer cavity |
| 10/06/1981 | US4293199 Apparatus for detecting astigmatic axes and measuring refractive powers |
| 09/29/1981 | US4292537 System for testing optical fibers |
| 09/17/1981 | WO1981002634A1 Measurement of refractive index profile |
| 09/15/1981 | US4289959 Apparatus for detecting the in-focusing conditions |
| 09/15/1981 | US4289398 Optical time domain reflectometer |
| 09/08/1981 | US4288161 Optical probe for detecting transitory and repetitive light signals |
| 09/08/1981 | CA1108431A1 Echometre for localising defects affecting light conductors |
| 09/01/1981 | US4286979 Launching light into multimode fiber |
| 08/25/1981 | CA1107493A1 Method and apparatus for determining ratio of core radius to cladding radius in clad optical fibers |
| 08/11/1981 | US4283139 Instrument for optically measuring soft contact lens parameters |
| 08/06/1981 | WO1981002199A1 Interferometer for the shape control of convex surfaces of optical parts |
| 08/04/1981 | US4281926 Method and means for analyzing sphero-cylindrical optical systems |
| 08/04/1981 | US4281925 Fiber optic attenuation simulator |
| 07/28/1981 | US4280827 System for measuring optical waveguide fiber diameter |
| 07/28/1981 | US4280765 Optical fiber transfer function measuring system |
| 06/30/1981 | US4275964 Apparatus and method for determining the refractive characteristics of a test lens |
| 06/24/1981 | EP0030542A1 Method for monitoring optical fiber processing |
| 06/23/1981 | US4274737 Test patterns for lens evaluation |
| 06/09/1981 | US4272781 Nondestructive examining apparatus |
| 06/09/1981 | US4272190 Optical measuring system |
| 06/02/1981 | CA1102437A1 Method for converting luminosity values into isochromates |
| 05/27/1981 | EP0029195A1 Method of determining the refractive index profile of an optical fibre |
| 04/22/1981 | EP0027185A1 Protective covering for the bend section of an endoscope |
| 04/07/1981 | US4260252 Method and apparatus for immobilizing a contact lens |
| 04/07/1981 | CA1098991A1 Method and apparatus for detection of inclusions in glass article or the like |
| 04/01/1981 | EP0025815A1 Method for monitoring extension in stressed components |
| 03/25/1981 | EP0025646A1 Method and apparatus for proof testing glass fibres |
| 03/17/1981 | US4257033 Fault locating system in optical fiber transmission system |
| 03/11/1981 | EP0024953A2 Signal processing system |
| 03/11/1981 | EP0024574A1 Apparatus for determining the refractive index profile of optical fibres |
| 03/03/1981 | CA1096674A1 Optical apparatus for varying focal power along one principal meridian while maintaining constant focal power along the other principal meridian |
| 02/24/1981 | CA1096478A1 Multi-drop communications device |
| 01/27/1981 | US4247200 Projection type lens meter |
| 01/20/1981 | CA1093858A1 Fibre optic cable signal detector and fault locator |
| 01/13/1981 | US4245156 Apparatus for monitoring the optical quality of a beam radiation |
| 01/07/1981 | EP0021816A1 Method and system of detecting pinholes in hollow fibres |
| 01/06/1981 | US4243877 Electro-optical target for an optical alignment system |
| 01/06/1981 | US4243320 Methods for testing optical fibres |
| 12/30/1980 | US4241996 Apparatus for measuring the quality of optical equipment |
| 12/24/1980 | WO1980002834A1 Method for monitoring optical fiber processing |
| 12/09/1980 | US4238827 Interferogram synthesization method and apparatus |
| 12/02/1980 | US4236904 Method for monitoring optical fiber drawing |
| 12/02/1980 | US4236824 Method for correction of forged optical elements |
| 12/02/1980 | US4236821 Method and apparatus for testing optical retrodirective prisms |
| 12/02/1980 | CA1090559A1 Method and apparatus for measuring the vertex power of lens system |
| 11/18/1980 | US4234253 Attenuation measuring system |
| 11/11/1980 | US4232966 Contact lens device |
| 10/07/1980 | US4226530 Method and device for indicating headlight alignment |
| 09/30/1980 | US4225231 Apparatus for measuring the radii of contact lenses |
| 09/30/1980 | CA1086523A1 Caustic ray analysis of the drawdown zone of an optical fiber preform |
| 09/23/1980 | CA1086050A1 Arrangement for adjusting headlights |
| 09/17/1980 | EP0015830A1 Apparatus for the measurement of the transfer function modules of an optical fiber and its use |
| 09/16/1980 | US4222664 Fibre optic cable termination testing |
| 09/16/1980 | CA1085606A1 Back vertex annular aperture for a sphero-cylindrical lens system |
| 09/02/1980 | US4220411 Fiber optic light launching assembly |
| 08/26/1980 | US4219274 Apparatus and method for packaging optical fibers |
| 08/12/1980 | US4217631 Device for adjusting an object to assume a predetermined angle to a certain plane |
| 07/22/1980 | US4213701 Lens testing apparatus and method |
| 07/08/1980 | US4211920 Fault location system for optical repeating paths |
| 06/25/1980 | EP0012179A1 Adjustment of two optical fibre terminations to be coupled |
| 05/27/1980 | CA1078171A1 Lensmeter |
| 05/27/1980 | CA1078170A1 Apparatus for testing the refractive power(s) of lenses |
| 05/20/1980 | US4204270 Method and apparatus for adjusting the orientation of vehicle headlights |
| 05/20/1980 | US4203666 Lensmeter |
| 05/20/1980 | US4203651 Optical apparatus for varying focal power along one principal meridian while maintaining constant focal power along the other principal meridian |
| 04/22/1980 | US4199816 Optical calibration apparatus and procedure |
| 04/22/1980 | CA1075891A1 Lens testing method and apparatus |
| 04/08/1980 | US4197007 Device for evaluating the light-transmitting characteristics of optical fibers |
| 03/04/1980 | US4191990 Arrangement for adjusting headlights |
| 02/19/1980 | CA1071858A1 Method for monitoring the concentricity of plastic coatings on optical fibers |
| 02/12/1980 | US4188533 Window transmittance tester |
| 01/15/1980 | US4183666 Method of measuring light transmission losses of optical materials |
| 01/08/1980 | US4182572 Lensmeter utilizing non-parallel light |
| 12/25/1979 | US4180325 Lens meter with automated readout |
| 12/11/1979 | US4178073 Optical isolator |
| 12/11/1979 | CA1067735A1 Conversion of stripe-geometry junction laser emission to a spherical wavefront |
| 12/04/1979 | US4176954 Equipment for measuring the length of dielectric elements transmitting optical frequencies |
| 11/06/1979 | CA1065643A1 On line optical fiber loss monitor |
| 09/25/1979 | US4168907 Method for inspecting transparent rods |
| 09/04/1979 | CA1061537A1 Apparatus and method for measuring refractive properties of a sphero-cylindrical optical system |
| 08/14/1979 | CA1060406A1 Optimized parabolic-index optical fiber communication system with incoherent light source |
| 07/31/1979 | US4162852 Method and device for measuring diopters of astigmatic lenses |
| 07/31/1979 | CA1059595A1 Method for monitoring the properties of plastic coatings on optical fibers |
| 07/17/1979 | US4161656 Methods for measuring dopant concentrations in optical fibers and preforms |
| 05/22/1979 | CA1054788A2 Method of measuring the parameters of optical fibers |
| 05/15/1979 | CA1054510A1 Method of breaking glass fibers and tool therefor |
| 05/01/1979 | US4151654 Device for measuring axially symmetric aspherics |
| 04/17/1979 | US4149801 Method and apparatus for measuring aspheric contact lens surfaces |
| 04/10/1979 | US4149030 Multi-drop communications device |
| 04/10/1979 | US4148218 Apparatus for applying tensile stress to fiber |
| 03/20/1979 | US4145142 Apparatus for and method of testing direct-view image intensifiers |
| 02/13/1979 | US4139305 Apparatus and method for measuring the vertex power of an optical system |
| 01/30/1979 | US4136961 Method and apparatus for detection of inclusions in glass article or the like |