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WO/2002/046716 |
A tensile testing machine for testing of tensile strength in to each other spliced optical fibres has got tension rollers (15) to hold and stretch the optical fibres around the splice. A furnace (17) is placed in between the dies and may...
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WO/2002/046715 |
A wavelength dispersion measuring method for measuring the group velocity dispersion of an optical element, e.g. an optical fiber, directly. The group velocity dispersion is measured using a light subjected simultaneously to optical freq...
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WO/2002/047397 |
A compact flat panel color calibration system includes a lens prism optic able to pass a narrow, perpendicular, and uniform cone angle of incoming light to a spectrally non-selective photodetector. The calibration system also includes a ...
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WO/2002/045277 |
A method and system (200) for detecting electrical short circuit defects in a plate structure of a flat panel display (205), for example, a field emission display (FED). In one embodiment, the process first applies a stimulation (204) to...
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WO/2002/042728 |
A method and an apparatus for measuring aberration of a projection optical system with high accuracy. A micro measuring pattern (10a) and a large measuring pattern (10b) on a reticle (9) are irradiated with illumination lights having inc...
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WO/2002/040939 |
A fixture for centering a hydrated lens in preparation for taking one or more measurements of the lens includes a lens-seating surface having a radius of curvate less than the radius of curvature of the posterior surface of the lens whic...
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WO/2002/039068 |
A fiber optic sensor system permits multiple parameters to be sensed using a single sensor. In a described embodiment, a method of sensing multiple parameters is provided in which an interferometric fiber optic sensor is connected to a v...
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WO/2002/037075 |
The present invention relates to an apparatus for optical coherence reflectometry, in particular for optical coherence tomography, wherein the apparatus for optical coherence reflectometry comprises a wavelength scanning laser source for...
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WO/2002/035510 |
A process for in-line testing and control of the manufacture of a display panel having a plurality of light-emitting micro-components sandwiched between two substrates is disclosed. The preferred process includes a step (900) of forming ...
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WO/2002/035201 |
A highly accurate method and apparatus for measuring the internal index of refraction of the perform (2) of an optical fiber from the refraction of a light beam (4) when it passes through the perform (2). The angle of refraction is deter...
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WO/2002/035210 |
The invention relates to a proof testing method and a proof testing apparatus for optical fibre where a fibre (1) is guided to a first pulling device (2) and further to a second pulling device (3) and then onto a reel (11, 12), whereby t...
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WO/2002/033455 |
The invention relates to a method for computationally determining optical properties of a channel waveguide, according to which, for an incident ray entering an entrance surface, the distribution of intensity over an emergence surface is...
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WO/2002/031576 |
A method of correcting aberrations in an optical system by applying a light adjustable aberration conjugator layer to a component of the system, determining the nature of the aberration, applying radiation to the conjugator layer such as...
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WO/2002/031462 |
The reference artifact has an amplitude response that includes an attenuation line having an extremum at a center frequency. The reference artifact has either or both of a calibrated optical group delay and a calibrated chromatic dispers...
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WO/2002/032023 |
The invention relates more particularly to an emulation device for emulation of a polarisation mode dispersion (PMD) of an optical transmission system, comprising the following: an emulator input for an optical input signal; at least one...
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WO/2002/028272 |
An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device (128) for reflecting selected portions of the wavefront (126), an imaging device (132) for capturing information related to the sele...
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WO/2002/027292 |
The invention relates to a method and to a device for measuring the non-linear coefficient $g(g) and/or the dispersion coefficient $g(b)¿2? of an optical fiber (8) of an optical data transmission path. The non-linear coefficient $g(g) a...
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WO/2002/023124 |
The invention relates to a method for measuring the curvature of a reflective surface (2), in particular of a pane of glass (5), which curves both longitudinally and transversally. According to said method, light that is emitted from a l...
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WO/2002/021075 |
The present invention provides methods for determination in lithographic wafer (10) by diffraction signature difference analysis utilizing a plurality of diffraction gratings (20).
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WO/2002/021187 |
A method of producing an object lens system capable of satisfactorily minimizing remaining wave front aberration higher-order components. The method of producing an object lens system (7) comprises the step of producing respective optica...
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WO/2002/016901 |
An instrument for measuring chromatic dispersion in optical fibers. The instrument comprises two independent modules, an optical source (2') and a receiver (4'). The optical source (2') comprises two pulse producing circuits: one driving...
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WO/2002/016902 |
The invention concerns an apparatus and a method for transmission measurement of the geometric structure of an optical component (2), comprising steps which consist in: illuminating the optical component with a first incident light (8, 1...
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WO/2002/014826 |
A measuring method for determining an optical characteristic value of a soft contact lens (TL) by determining a change in the pattern light of a photosensor (9) when a pattern plate (8) is arranged in the measurement light path of a meas...
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WO/2002/014827 |
An apparatus for measuring a refractive power comprises an optical system (1) which projects measurement light (P) to a lens (TL) wetted with a liquid (12), a photosensor (7) which receives the measurement light P having penetrated throu...
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WO/2002/012826 |
A defocused implementation of the lateral shearing interferometer in which an image-plane filter allows both phase-shifting and Fourier wavefront recovery methods to be readily used. The two wavefront recovery methods can be combined in ...
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WO/2002/011320 |
To automate fiber connectivity management in optical systems, a dedicated low bit-rate communications channel unique to each fiber connection in an optical system is provided. The dedicated communications channel simplifies fiber connect...
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WO/2002/010705 |
A method and apparatus for measuring characteristics in an electromagnetic or optical system. A modulation signal is provided to a device under test to provide a first signal and to a reference device which provides a second signal, and ...
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WO/2002/008718 |
For determining an loss (L¿DUT?) of an optical component (20) having one or more connections (C1, C2), a connection insertion loss (L¿C1?, L¿C2?) is determined for one or more of the connections (C1, C2) by means a reflectometric meas...
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WO/2002/004913 |
An uneven light intensity distribution inspecting method comprises imaging an image print mask (12H) of when an image print mask (12H) for shaping and projecting a light beam from a light source (13) is irradiated with the light from the...
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WO/2002/005463 |
The invention relates to a method and a device for determining the polarisation mode dispersion of a transmission system, especially a transmission fibre. The invention is characterised in that, in an optoelectronic heterodyne receiver, ...
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WO/2001/097683 |
An unmanned eyeglass information processing apparatus and method for processing information on eyeglasses at a convenient place near the workplace or home of the user in a way having a counter-selling factor and enabling the user to purc...
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WO/2001/098799 |
In determining the kind to which an unknown optical fiber (1, 1') belongs an automatic fiber fusion-type splicer is used having movable clamps (21), electrodes (3), camera devices (9) and background illumination (11), all coupled to elec...
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WO/2001/097413 |
Disclosed is an optical system with a non-reciprocal optical device (10) having a plurality of ports each for providing an input and/or an output of the device, wherein an input signal is received at a first one of the ports. A reflected...
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WO/2001/094905 |
The invention relates to a measuring method that allows to measure non-linearities of an optical fiber (OF) unilaterally, that is at the beginning or at the end of the optical fiber (OF). To this end, an optical test signal (ots) is laun...
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WO/2001/094906 |
An apparatus for measuring optical characteristics in which the frequency for modulating a variable wavelength light generated from a light source can be increased without causing any trouble in the measurement of optical characteristics...
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WO/2001/093466 |
The invention relates to an optical transmission system having the structure of effectively suppressing variation in cumulative chromatic dispersion in an optical fiber transmission line from a transmitter to a receiver, thereby enabling...
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WO/2001/092838 |
A wavefront sensor (10) for detecting the wavefront produced by light waves from a light source (L) comprises optically refractory or reflective means (16, 18, 32, 42, 44) for receiving the light waves from the light source and producing...
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WO/2001/088464 |
The invention relates to an adjusting device comprising an optical regulating device (2) having a reflector (2.1) for adjusting parts of an automobile, especially distance radars, headlights or axles, by means of an irradiation device (3...
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WO/2001/086840 |
The invention relates to a system for compensating for polarization mode dispersion (PMD) related distortions in optical transmission systems and, in particular, transmission fibers comprising: a measuring device for PMD-related distorti...
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WO/2001/086333 |
The invention relates to a system for producing a predeterminable polarization mode dispersion (PMD) comprised of: a first polarization splitter/combiner element, which splits the incoming signal into two signals having polarization dire...
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WO/2001/077616 |
A sensing instrument comprises a light source (1), a polarizer (2), a liquid crystal cell (3), a quarter-wave plate (4), an analyzer (5), an optical sensor (6), and a processing device. The processing device receives the intensities of l...
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WO/2001/075407 |
In order to avoid errors inherent in the measurement of electrical phase differences or pulse arrival time in relative group delay measurements, different optical signals have their intensity modulated at a common high frequency and diff...
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WO/2001/071304 |
An apparatus for proof testing an optical waveguide fiber includes a first capstan defining a first outer diameter and a continuous first capstan belt under tension and in contact with the first outer diameter of the first capstan. The c...
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WO/2001/071411 |
The present invention relates to methods of implementing an optical element having a refraction modulating composition. The methods include using a wavefront sensor to provide an optical measurement of the optical element. The present in...
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WO/2001/071398 |
The present invention provides a method and apparatus for obtaining a measure of the chromatic dispersion of a fibre bragg grating (40), the method comprising: disposing the grating in a reflection (34) arm of an interferometer; inputtin...
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WO/2001/069196 |
In order for a simple configuration based on a fixed analyzer method to measure smaller PMD values, a reference substance gives a specified polarization mode dispersion to a linearly polarized light extracted by a first polarizer from a ...
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WO/2001/067038 |
The invention concerns a device comprising at least a transducer (1) in the form of a matrix wherein is embedded an optical fibre segment (7) provided with means designed to modify light transmission in accordance to a stress to be measu...
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WO/2001/067373 |
A modular platform assembly for providing at least one breadboard surface level above a table (T) includes a rectangular breadboard plate (20) having holes (23) therein, a pillar member (30, 60) for supporting each corner of the rectangu...
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WO/2001/067649 |
The invention relates to a device for detecting the PMD of optoelectronic transmission lines. The inventive device is characterized in that it comprises a narrow-band, tuneable laser, whose illumination is superimposed with the illuminat...
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WO/2001/063233 |
The invention relates to a device (1) for detecting wave fronts. The inventive device comprises a wave front source (7) for generating a wave front (9), an optical system (5) that forms the wave front (9), a diffraction grating (11) whic...
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