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Patent Searching and Data


Matches 301 - 350 out of 2,564

Document Document Title
WO/2009/023774A1
Systems and methods are provided for disrupting tissue within preretinal or retinal structures of an eye. At least one femtosecond laser pulse is directed through the cornea of the eye to a target location. The at least one femtosecond l...  
WO/2009/014622A1
Particular embodiments of the present invention relate generally to wavelength monitoring in frequency doubling and other optical applications. According to one embodiment of the present invention, a system for monitoring the wavelength ...  
WO/2009/010593A2
The invention relates to a method of estimating at least one deformation of the wave front of an observation system or of an object observed by said observation system, characterized in that: at least one diversity image is acquired, in ...  
WO/2009/000500A1
In the case of a method and an apparatus for measuring the wavefront of laser radiation, - partial laser beams (4) are coupled out of the laser beam (1) to be measured in temporal succession with the aid of an aperture (3) which can be d...  
WO/2008/135363A1
According to the invention, a first wave (24) that has undergone a disturbance is made to interfere with an adaptive and continuously adjustable second wave (32), serving as reference wave, in order to obtain a set of interference fringe...  
WO/2008/132305A1
The invention relates to a self-referenced device (1) for measuring the spectral phase of a periodic signal having a frequency fp, the periodic signal being carried by an optical signal, comprising: a phase shifting means (4); a transmis...  
WO2008076444B1
Selected scene regions are imaged. IMAGING CHANNEL: mirrors (preferably MEMS) address an imaging sensor to regions. CALIBRATION CHANNEL: the mirrors direct radiation from a source to a calibration sensor, along an imaging -channel segmen...  
WO/2008/089246A2
Exemplary embodiments provide a micro-scale optical force sensor. The device includes a scale grating, a linearly displaceable index grating positioned above and in initial alignment with the scale grating, the index grating aligned with...  
WO/2008/087854A1
Provided is an optical phase-modulation evaluating device capable of evaluating the modulated state of an optical phase-modulated signal more precisely than the prior art. An optical phase-modulation evaluating module (10) comprises a bi...  
WO/2008/074939A1
The invention relates to a device (10, 20) for detecting a phase difference between two light beams (8A, 8B), said device including: a diffraction grating (2) which can generate an interference field between the two light beams; and a ph...  
WO/2008/070810A2
In one embodiment of the invention, a detector subsystem for an interferometric imaging system includes a parabolic mirror, a light source located at an optically significant distance from the focus point of the parabolic mirror and orie...  
WO/2008/060955A2
A web edge sensor is disclosed. The web edge sensor has a light source directing light incident to an edge of a web. The edge of the web scatters the light and a sensor array that detects a first portion of the light scattered from the e...  
WO/2008/046998A1
The invention relates to a method for correcting a wave front analyser, in which said analyser detects a signal from an incident wave front to be analysed (FO), said detected signal providing phase and intensity local information. The me...  
WO/2008/047358A2
A system for alerting a driver to the presence of a living body such as, e.g., a baby, left alone in a vehicle. The system is based on sensors made in the form of optical waveguides, each connected to the surface of the driver's seat and...  
WO/2008/045868A2
A remotely reporting, laser-based position and guidance system with active transmitter and receiver, passive target, and remote reporting unit for reporting relative positions of transmitter and receiver unit and target.  
WO/2008/025958A2
A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled are...  
WO/2008/025433A2
The invention relates to a method for the spatially resolved determination of the phase and amplitude of the electromagnetic field in the image plane of an image of an object. Here, images are produced by virtue of the fact that the obje...  
WO/2008/019937A1
In order to minimize the dependency of the interference signal of angular positions or tilts of optical components in an Michelson interferometer, while achieving a high degree of modulation, the interferometer has a beam splitter (3) an...  
WO2007070006A9
An optical wavefront sensor comprising a light manipulation device (302); a detector (304) for detecting light signals having been subjected to the light manipulation device (302); and a controller (306) coupled to the manipulation devic...  
WO/2008/003302A1
The invention relates to a method for the electronic scanning of the intensity distribution of an optical interference pattern by means of a linear image sensor (26), which specifies a fixed scanning frequency by the pixel width thereof,...  
WO2007103560A9
A composite material that is responsive to either electromagnetic or thermal radiation. The composite has a controllable structure that is either dynamically or tunably responsive to such radiation and comprises a metamaterial. Sensors, ...  
WO/2007/139834A2
A system is provided for both reading an optical identification mark, such as a bar code, on a fastener and for making ultrasonic load measurements in the fastener using a single probe for use during fastener installation with assembly t...  
WO/2007/132030A1
The present invention relates to a device and to an associated method capable of obtaining the optical spectra phase of an optical signal or problem signal to be analysed by using techniques of heterodyning between two monochromatic spec...  
WO/2007/126475A2
The present invention relates to an optic seismic MEMS sensor. More specifically, a proof mass is supported by a frame having supporting beams. The proof mass is positioned within the frame and has a hinged attachment to the beams. The p...  
WO2007045028A9
An apparatus for interferometric sensing, comprising a plurality of single-longitudinal mode laser sources to each provide radiation at a corresponding plurality of selected wavelengths, and at least one modulator to frequency or phase m...  
WO/2007/120181A2
A method and apparatus for measuring Mueller matrix parameters from scattered light. The apparatus is advantageous for use in countering bioterrorism by detecting information concerning airborne pathogens, particularly microorganism in a...  
WO/2007/120112A1
The present invention relates to an adaptive optics sensor intended for simultaneous detection of several wave fronts on a common camera target. The sensor is intended for use in connection with multi-conjugate adaptive optics (MCAO), wh...  
WO/2007/093748A2
The invention relates to a wavefront analysis method involving multilateral interferometry with frequency difference. According to the invention, a diffraction grating (GR) with two-dimensional meshing is placed on the path of the beam t...  
WO/2007/087058A1
A sequential wavefront sensor comprises a light beam scanning module (212) , a sub-wavef ront focusing lens (220) , a detector (222) with more than one photosensitive area and a processor for calculating the sequentially obtained centroi...  
WO/2007/083061A1
The invention concerns a method and a device for analyzing a wave surface of a light beam, which consists in placing a diffraction grating (GR) in a plane perpendicular to the light beam to be analyzed and optically conjugated to the ana...  
WO/2007/082678A1
The invention relates to an optical spectrometer (2) for evaluating light wave signals, in particular from optical measuring sensors (3). The optical spectrometer (2) comprises a row (10) of photo diodes that acts as an optoelectric tran...  
WO/2007/083609A1
A light spectrum analyzer comprising a waveguide type acoustooptic wavelength variable filter and capable of measuring light spectrum with high precision regardless of temperature variation. The light spectrum analyzer (1) for detecting ...  
WO/2007/082975A1
A system consisting of a phase camera with microlenses placed in the focal point of a converging lens, wherein the camera data is processed using a combined Fourier "Slice" and Fast Fourier Transform edge detection technique providing bo...  
WO/2007/076746A1
In an optical imaging system for testing a wave front, the object is to provide an optical imaging system which images test specimens with sufficient focus in a large wavelength range as far as the pupil edge. Mirror optics are provided ...  
WO/2007/066686A1
An optical nonlinear evaluation device (1) can accurately evaluate optical nonlinearity of Kerr medium according to a phase difference caused by mutual phase modulation by Kerr medium. The optical nonlinear evaluation device (1) includes...  
WO/2007/067823A2
A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection ...  
WO/2007/055800A1
A method and system for providing fast interrogation of a signal received from a fiber optic sensor array using a low drive voltage, by modulating the array signal with a phase generated carrier optical signal having a modulation frequen...  
WO/2007/052019A1
An apparatus for detecting the phase of a wavefront in a beam of electromagnetic radiation includes divider (2) for dividing an original beam (4) into a reference beam (8) and a measurement beam (6,6a), a shearing device (18) for displac...  
WO/2007/049263A1
An image projection display system comprises a variable optical property element (1). The element (1) is under direction of a control system (2) and is positioned within an optical system (5), comprising optical elements (5(a, b, c, d, e...  
WO/2007/041852A1
The present invention relates to a method and device for reducing the phase noise of a laser signal from a laser source. This device comprises a first current generator for supplying a driving current to the laser source in view of produ...  
WO/2007/025746A1
The present invention relates to a device and a corresponding method for the interferrometric measurement of phase masks, particularly from lithography. In the device according to the invention for the interferrometric measurement of pha...  
WO/2006/127199A1
A combination interferometer (ifo) inspection device is provided which includes a Twyman-Green (T-G) ifo (80) optically coupled to a Mach-Zehnder (M-Z) ifo (82). MEMS and MOEMS versions permit substantial reduction in size and weight to ...  
WO/2006/111593A1
The invention relates to an optical interferometer comprising an optical fibre or dielectric waveguide Sagnac cavity (1) which is closed by a coupler (2) with a coupling ratio (K), involving the introduction of a polychromatic optical si...  
WO/2006/097330A1
1. Methods and apparatus for measuring wavefronts and for de-termining scattered light, and related devices and manufacturing methods. 2.1. The invention relates to a method and apparatus for spatially resolved wavefront measurement on a...  
WO/2006/090320A1
A new way of mixing instrumental and digital means is described for the general field of wave front sensing. The present invention describes the use, the definition and the utility of digital operators, called digital wave front operator...  
WO/2006/085650A1
Provided is a wavelength monitoring device, which is enabled to achieve prevention of upsizing and cost reduction by simplifying an optical system. The wavelength monitoring device comprises a collimate lens, a double refraction element,...  
WO/2006/082327A1
The invention concerns the field of image processing. The invention concerns more particularly a method for obtaining a phase image from an intensity image. The method is characterized in that it consists in using filters which are measu...  
WO/2006/076474A1
Operation of an adaptive optical system with a deformable mirror is enhanced by provision of a wavefront sensor or other wavefront- quality-evaluating device, and feedback from that device is applied to control the defo:trmable mirror. T...  
WO/2006/076043A1
A beam control system and method. The inventive system includes an arrangement for receiving a first beam of electromagnetic energy; measuring wavefront aberrations in the first beam with a wavefront sensor; and removing global tilt from...  
WO/2006/075190A1
A spectrum Fourier processor comprising, an input for receiving light from a light source, an output, an optical splitter for receiving light from an input source and splitting the light into two coherent sources, means for focusing the ...  

Matches 301 - 350 out of 2,564