| Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356) |
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| 06/20/1989 | CA1255921A1 Apparatus for measuring the cut-off wavelength of a single-mode optical fiber |
| 06/14/1989 | EP0320108A2 Optical fiber break detector |
| 06/14/1989 | CN2039420U Levelness detector for collimation axis of level telescope |
| 06/13/1989 | US4838690 Simultaneous bi-directional optical time domain reflectometry method |
| 06/13/1989 | US4838689 Method of and device for measuring the attenuation of optical fibers by means of the backscatter method |
| 06/13/1989 | US4838032 Optical signal power measurement method and apparatus |
| 06/07/1989 | EP0318947A2 Superluminescent diode |
| 06/07/1989 | CN2039020U Light-leakage testing apparatus for piston ring of internal-combustion engine |
| 06/06/1989 | US4836030 Method of testing composite materials for structural damage |
| 05/31/1989 | EP0318043A1 Optical time domain reflectometer with automatic measuring function of optical fiber defects |
| 05/31/1989 | EP0317994A2 Process for leading light conducting fibres out from fibre-reinforced composite materials |
| 05/30/1989 | US4834482 Optical fiber coupler |
| 05/24/1989 | CN2038237U Focus check apparatus |
| 05/23/1989 | US4832487 Test system for optical disks |
| 05/23/1989 | US4832486 Method and apparatus or in vitro evalution of focal length and focal length changes in lenses from human and animal eyes |
| 05/23/1989 | US4832452 Device for setting the angular position of optical elements |
| 05/17/1989 | EP0315663A1 Compact continuous wave wavefront sensor. |
| 05/16/1989 | CA1254280A1 Apparatus and method for monitoring fiber tension |
| 05/10/1989 | EP0315400A2 Apparatus for and method of measuring and/or controlling the use of fiber optic conductors |
| 05/10/1989 | EP0315331A1 Method and apparatus for testing fiber optic hubs |
| 05/10/1989 | EP0315271A1 Heterodyne OTDR |
| 05/10/1989 | EP0315270A2 Optical multiport element with an acousto-optical modulator |
| 05/09/1989 | US4828385 Autolensmeter |
| 05/09/1989 | US4828358 Testing in the manufacture, operation, and maintenance of optical device assemblies |
| 05/02/1989 | US4826315 Lens meter |
| 05/02/1989 | US4826314 Echometer for locating defects which affect light conductors |
| 04/26/1989 | EP0313128A2 Measuring arrangement for testing a plurality of optical fibres |
| 04/26/1989 | EP0313020A2 Optical time domain reflectometer with level adjusting function |
| 04/25/1989 | US4824243 Compact continuous wave wavefront sensor |
| 04/25/1989 | CA1253023A1 Device for controlling the optical qualities for an aspherical convex mirror and its use for controlling a telescope convex mirror |
| 04/25/1989 | CA1252997A1 Soft contact lens analyzer |
| 04/18/1989 | US4823166 Optical time-domain reflectometry |
| 04/18/1989 | US4822997 Apparatus for and method of measuring and/or controlling the use of fiber optic conductors |
| 04/18/1989 | US4822165 Device for illuminating components of transparent material in testing for irregularities |
| 04/18/1989 | CA1252917A1 Method and apparatus for analyzing a porous nonhomogeneous cylindrical object |
| 03/28/1989 | US4815846 Toric soft contact lens holder |
| 03/28/1989 | US4815844 Device for testing components of transparent material for surface irregularities and occlusions |
| 03/14/1989 | US4812645 Structural monitoring system using fiber optics |
| 03/14/1989 | US4812641 High power optical fiber failure detection system |
| 03/14/1989 | US4812038 Adaptive selection of OTDR test parameters and the fusion of data taken from successively shrinking measurement spans |
| 03/09/1989 | DE3803790A1 Method for the early detection and prevention of reject production in the manufacture of optical wave guides |
| 03/08/1989 | EP0305684A2 Device for detecting the correspondence of the ends of an optical fiber |
| 03/07/1989 | US4810872 Optical property measuring device |
| 03/01/1989 | EP0305182A2 Apparatus and method for measuring reflective cone |
| 03/01/1989 | EP0304664A2 Detector for aligning high power lasers |
| 02/28/1989 | US4808815 Apparatus for testing light-emitting devices using probe means having a preselected pattern arrangement |
| 02/28/1989 | US4808814 Optical system for sensing fractures in a structural component |
| 02/22/1989 | CN1031277A Device for performing measurements on a transparent object, method of mfg. a fibre |
| 02/15/1989 | EP0303293A2 Laser temperature modulation and detection method |
| 02/14/1989 | US4804265 Signal processing circuit |
| 02/14/1989 | US4804264 Arrangement for time-resolved optical backscatter measurement at optical waveguides |
| 02/09/1989 | DE3725279A1 Test equipment for vehicle headlights (headlamps) |
| 02/08/1989 | EP0302275A2 Arrangement for detecting intensity-modulated light signals |
| 02/02/1989 | DE3724334A1 Arrangement for testing multiport optical waveguide components |
| 02/02/1989 | DE3724001A1 Method of identifying the material of spectacle lenses |
| 02/01/1989 | CN1030846A Method of inspecting apertured mask sheets |
| 01/25/1989 | EP0300572A1 Method and apparatus for inspecting apertured mask sheets |
| 01/24/1989 | US4799793 Providing spectacle correction on optical axis |
| 01/24/1989 | US4799792 Method to test the polishing of a mirror and system to use this method |
| 01/24/1989 | US4799790 Chromatic dispersion measuring system for optical fibers |
| 01/24/1989 | US4799789 Chromatic dispersion measuring system for optical fibers |
| 01/18/1989 | CN1030477A Wave front aberration determination device for microscope objective |
| 01/17/1989 | US4798950 Radiation characteristic measuring apparatus for laser diode |
| 01/17/1989 | US4798468 Interference apparatus for detecting state of wave surface |
| 01/17/1989 | US4798467 Heterodyne laser instantaneous frequency measurement system |
| 01/17/1989 | US4798460 Method and apparatus for detecting and modifying peripheral curves and junction ridges in contact lenses |
| 01/17/1989 | US4798459 Ophthalmic lens centering device |
| 01/11/1989 | EP0298118A1 Otdr testing of optical fiber. |
| 01/10/1989 | US4797558 Inspection apparatus including photodetection and scanning apparatus |
| 01/10/1989 | US4796996 Laser temperature modulation and detection method |
| 01/10/1989 | US4796991 Method and apparatus for measuring soft contact lenses |
| 01/10/1989 | US4796989 Opthalmological measuring apparatus |
| 01/04/1989 | EP0297669A2 Method for measuring a reflected optical radiation |
| 01/04/1989 | EP0297129A1 Refraction coefficient profile measurement system and process. |
| 12/29/1988 | DE3720339A1 Method for determining the excess length of an optical fibre |
| 12/29/1988 | DE3720196A1 Device for detecting the attenuation of optical fibres |
| 12/28/1988 | EP0296856A1 Headlight aiming and light pattern testing apparatus and method |
| 12/27/1988 | US4794495 Headlamp assembly |
| 12/27/1988 | US4794249 Optical time domain reflectometer with heterodyne reception |
| 12/27/1988 | US4793715 Detector for aligning high power lasers |
| 12/27/1988 | US4793709 Method and apparatus for measuring the losses of an optical cavity |
| 12/21/1988 | EP0295489A1 Error detection system for two-state fiber optic sensors |
| 12/20/1988 | US4792227 Apparatus for measuring the refractive index of a substrate for an optical recording medium and method of measuring the same |
| 12/20/1988 | CA1247207A1 Fiber optics system with self test capability |
| 12/14/1988 | EP0294889A1 Device for performing measurement of a transparent object, method of manufacturing a fibre, and fibre manufactured by means of said method |
| 12/13/1988 | US4790642 Integrated metrology for microlithographic objective reducing lens |
| 12/13/1988 | US4790617 Methods and apparatus for optical fiber systems |
| 12/07/1988 | CN88212426U Testing instrument for discolour lens |
| 12/06/1988 | USH550 Apparatus for sensing axial and tangential forces exerted on a spool of datalink filament |
| 12/06/1988 | US4789237 Device for selecting a light source for measuring the wavelength characteristics of an optical element |
| 12/01/1988 | WO1988009488A1 Compact continuous wave wavefront sensor |
| 11/29/1988 | US4787743 Apparatus for measuring the radius of curvature |
| 11/23/1988 | EP0291962A2 Method of measuring polarization and birefringence in single mode optical fibres |
| 11/22/1988 | US4786175 Rotatable shear plate interferometer |
| 11/22/1988 | CA1245072A1 Method and apparatus for measuring single mode fiber mode field radius |
| 11/15/1988 | US4784485 Contact lens zonometer |
| 11/09/1988 | EP0290167A2 Improvements in or relating to the detection of ultraviolet radiation |
| 11/08/1988 | US4783139 Streaking tube |
| 11/08/1988 | US4783055 Holographic interferometer |
| 11/02/1988 | EP0289414A2 Method and device for the digitization and linearization of a quasi-sinusoidal sensor |