Patents
Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356)
07/1994
07/19/1994US5331394 Automated lensometer
07/19/1994US5331393 Method and apparatus for locating a specific location on a vehicle headlamp
07/19/1994US5331392 Method of identifying an optical cable
07/19/1994US5331391 Method of determining the optical loss in reflected radiation in a fibre-optic light guide
07/13/1994EP0605990A2 Illumination and imaging subsystems for a lens inspection system
07/13/1994EP0605710A1 Interferometric system for sensing and locating reflective defects in light-conducting structures.
07/12/1994US5329348 Method of identifying a particular optical cable out of a number of similar optical cables
07/12/1994CA2011671C Helical bend proof testing of optical fibers
07/06/1994EP0605301A1 Optical time domain reflectometer
07/06/1994EP0605297A1 Device for the measurement of the index profile of a preform for an optical fibre comprising a core and an outer cladding
07/06/1994EP0605172A2 Adjusting and support apparatus for a lamp unit
07/06/1994EP0605171A2 Lens inspection system
07/06/1994EP0605116A2 Depolariser for optical components in optical transmission system
07/05/1994US5327330 Inner sealed lamp-within-a lamp headlamp for a motor vehicle
07/05/1994CA2045427C Method for fabricating a time domain reflectometry optical fibre and optical fibre obtained with said method
06/1994
06/29/1994EP0604180A2 Ophthalmic lens inspection system and method
06/29/1994EP0604179A2 Ophthalmic lens inspection method and apparatus
06/29/1994EP0604178A1 Illumination system for ophthalmic lens inspection
06/29/1994EP0604174A2 Method and system for automatically inspecting ophthalmic lenses
06/29/1994EP0604173A2 Apparatus for carrying ophthalmic lenses
06/29/1994EP0604045A2 Optical time domain reflectometry measurements on a multi-branch optical network
06/29/1994EP0414770B1 A fixture for supporting objects so that the objects will be absolutely firm
06/29/1994CN1088688A A method and system for automatically inspecting ophthalmic lenses
06/29/1994CN1088681A Real-time one step double-wavelength holographic interference checking device
06/29/1994CN1088533A An apparatus for carrying ophthalmic lenses
06/28/1994US5325171 System for calibration of optical instrument on satellite with reference light source
06/23/1994DE4242882A1 Testing aspherical curved surfaces, esp. of optical components
06/23/1994DE4242479A1 Determining numerical aperture, aperture number and=or focal length
06/23/1994CA2107454A1 Optical time domain reflectometry measurements on a multi-branch optical network
06/21/1994US5323225 Method of determining azimuthal position of transverse axes of optical fibers with elliptical cores
06/21/1994US5323224 Variable wavelength optical time domain reflectometry apparatus
06/21/1994US5322997 Optic fiber payout test apparatus having a projectile track system with dual rails
06/21/1994US5322228 Method for screening optical fiber and apparatus for carrying out method
06/15/1994EP0601892A2 Optical table
06/14/1994US5321493 Apparatus and method for evaluating a projection lens
06/14/1994US5321439 Vehicle headlight testing system
06/14/1994US5321267 Bench flotation sensor
06/07/1994US5319482 Optical loop back and line test apparatus
06/07/1994US5319459 Method and apparatus for checking defect on display screen
06/07/1994US5319266 Differential boxcar integrator with auto-zero function
06/07/1994US5319195 Laser system method and apparatus for performing a material processing operation and for indicating the state of the operation
06/07/1994US5318610 Fiber coupler manufacturing apparatus having an automatic breaking test device
06/01/1994DE4239819A1 Compound light conductor cable separation method - bending cable away from cutter during separation, and applying outward tension to cable to remove cable from protective sheath
05/1994
05/31/1994US5317575 System for determining birefringent axes in polarization-maintaining optical fiber
05/31/1994US5317486 Horizontal zero viewing port assembly
05/31/1994US5315763 Headlight aiming device and method
05/24/1994US5315374 Three-dimensional measuring apparatus
05/24/1994US5315365 Macrobend splice loss tester for fiber optic splices with silicon gel cushion on optical coupling blocks
05/18/1994EP0597771A1 Optical beam centralisation adjusting device, application to the introduction of the beam in an optical fibre
05/11/1994EP0596600A1 Base plate unit for fourier transform infrared spectrometers and the like
05/10/1994US5311599 Method and apparatus for optical testing of samples
05/10/1994US5311292 Transmissivity measuring apparatus for a color separation prism
05/10/1994US5311284 Method of measuring optical characteristics of thin film and apparatus therefor
05/10/1994CA1329331C Method and system for coupling optical fibres without fresnel reflection and variable optical attenuator and system using said attenuator to determine the effect of the reflectioncoefficient on an optical line
05/05/1994DE4236928A1 Sequential testing of image information - involves evaluation of image information, optimising image representation, and testing and classifying optimised information
05/04/1994EP0594741A1 Fault location in optical systems.
05/03/1994US5309221 Measurement of fiber diameters with high precision
04/1994
04/27/1994EP0593980A1 Procedure and device for performing measurements on several optical fibres
04/27/1994CN1086018A Optical fiber splice verification system
04/26/1994US5307141 Refractive characteristics measuring apparatus for measuring the refractive characteristics of a lens
04/26/1994US5307140 Optical time domain reflectometer with improved sidelobe suppression
04/26/1994US5306323 Fiber coupler manufacturing apparatus having an automatic breaking test device
04/26/1994US5305744 Calibrating reflector device for an optical measuring system
04/21/1994DE4322917A1 Test system for vehicle headlamp - contains video cameras acquiring images of projection wall and headlamp area of vehicle and camera signal processor
04/21/1994DE4235313A1 Measurement of several optical waveguides e.g. at multi-fibre connection - sequentially moving light spot over coupling sections and evaluating time distribution of light transmitted through waveguides
04/21/1994DE4234768A1 Optical scanning system for surface of object being tested - has circular receiving reflector formed by at least two separated segments leaving gaps so that rotational symmetrical object for testing can be gripped for imaging
04/20/1994EP0592690A1 Method for identifying optical line
04/20/1994EP0592631A1 Phase detection deflectometer-type optical device having a large measuring range
04/19/1994US5305078 Measurement of attenuation of optical fibers using transmitted wavelength and power information
04/19/1994US5304804 Turns count anomaly detector
04/15/1994CA2106705A1 Vehicle headlight system
04/13/1994EP0591818A1 Optical time domain reflectometer
04/12/1994US5303033 Gradient index measuring apparatus
04/12/1994US5303023 Apparatus and method for inspecting a test lens, method of making a test lens
04/12/1994US5303022 Lensometer with guided lens movement for progressive addition lens
04/12/1994US5302823 In an electrooptical apparatus
04/12/1994CA2002510C Expansible reel for tests on filamentary material, in particular optical fibres
04/07/1994DE4333502A1 Optical transmission line monitoring for location of fault - calculating distance from site of reflection in one of several lines through optical junction coupler
04/06/1994EP0590868A1 Optical fiber splice verification system
04/06/1994CA2107633A1 Optical line monitoring method and an apparatus therefor
04/05/1994US5301004 Method and apparatus for determining the optical properties of a lens
03/1994
03/30/1994EP0589003A1 Method and apparatus for determining the optical properties of a lens
03/29/1994US5299271 System and method of embedding optical fibers in honeycomb panels
03/29/1994US5298975 Combined scanning force microscope and optical metrology tool
03/29/1994US5298972 Method and apparatus for measuring polarization sensitivity of optical devices
03/29/1994US5298965 OTDR using distributed optical amplification in optical waveguide under test
03/23/1994EP0588612A1 Discriminator for separating back scattered raman light
03/22/1994US5296956 Performance monitoring and fault location for optical equipment, systems and networks
03/22/1994US5296705 Imaging system with integrated measuring of the wear of its optical elements working in transmission mode and optronic imaging equipment comprising an imaging system such as this
03/22/1994CA1327898C Optical fiber evaluation method and system
03/17/1994DE4230725A1 Test equipment for roundness of discs rolling down inclined plane - allows passage of single disc past acutely angled linear image sensor long enough for scan of complete circumference
03/17/1994DE4230386A1 Phase transfer function determn. device for lens of optical system - measures position of focus of beam projected into aperture of system through spiral array of holes in rotary screen
03/16/1994EP0586964A1 Method of determining azimuthal position of transverse axes of optical fibers with elliptical cores
03/15/1994US5294971 Wave front sensor
03/09/1994EP0586103A2 Measurement of a parameter of an optical amplifier
03/08/1994US5293543 Apparatus for color imager defect determination
03/08/1994US5293211 For measuring defects in a mirror coating on a mirror
03/08/1994US5291661 Peephole for built-in lighting fixture aiming device
03/01/1994US5291267 Optical low-coherence reflectometry using optical amplification
03/01/1994US5291034 Non-linear quantum dot optical device