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WO/2010/144866A2 |
A polarization camera includes a microlement polarizer that is situated in proximity to a focal plane array. The microlement polarizer is selectively scanned with respect to an optical image direct to the focal plane array, and an image ...
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WO/2010/128307A1 |
A method of obtaining, in a single exposure, imaging information from an object (16) representative of more than two distinct illumination images, the method comprising the steps of generating first electromagnetic waves (14) at least so...
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WO/2010/128014A1 |
The invention relates to a method for identifying images of a scene (1), comprising a step of illuminating the scene by a beam of N wavelengths, polarised in a determined direction, N being a whole number higher than, or equal to, 3. Sai...
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WO/2010/127273A1 |
An optical device has the structure to perform switching and attenuation of an optical beam with reduced polarization dependent loss (PDL). The optical device includes a birefringent displacer and two liquid crystal (LC) structures. The ...
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WO/2010/098740A1 |
The present invention relates to ellipsoineter and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than ...
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WO/2010/096637A1 |
This invention relates to the manufacture of semiconductor substrates such as wafers and to a method for monitoring the state of polarization incident on a photomask in projection printing using a specially designed polarization monitori...
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WO/2010/096407A1 |
Methods of monitoring critical dimensions in a semiconductor fabrication process include capturing at least one image of a first structure that has an effect on the polarization state of light reflected therefrom. For at least some of th...
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WO/2010/082000A1 |
The invention relates to a method and to a device (2) for determining a piece of polarisation information on a measurement point of a target sample (8), the device (2) comprising: - a light source (4) capable of emitting a rectilinearly ...
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WO/2010/081999A1 |
The invention relates to a method and to a device (2) for determining at least one piece of polarisation information on a measurement point of a target sample (8), the device (2) comprising: - a light source (4) capable of emitting a rec...
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WO/2010/068355A1 |
A polarimeter and method of polarizing incoming light includes an optical assembly, a first adjustable circular retarder (36) that rotates the polarization content of incoming light, a polarization beam splitter (38) that receives light ...
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WO/2010/035260A1 |
The present invention relates to a method and a device capable of measuring the rotation of linearly polarized light, with improved resolution and accuracy, by employing an efficient background subtraction system. The method and device a...
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WO/2010/005703A1 |
Disclosed embodiments pertain to optical assemblies which impart a spatially dependent rotation to linearly polarized light. A pair of optical assemblies may be used to apply a spatially dependent rotation to linearly polarized light in ...
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WO/2010/005874A1 |
Improving the throughput of systems for measuring birefringence of optical samples includes techniques for directing multiple beams through the photoelastic modulator component of the system so that, along with expanded detection mechani...
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WO/2009/150661A1 |
A PC based Polarimeter based on Malus' law comprising of a polarizer (P) and an analyzer (A1), arranged on a common axis so that their transmission axes are parallel. Linear polarized light passes through the analyzer (A1). The transmiss...
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WO/2009/127250A1 |
A circular polarisation spectrometer is disclosed comprising a source (1) of essentially monochromatic electromagnetic radiation preferably in the infrared range, an element (21, 37-45) for the generation of altematingly left and right c...
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WO/2009/127355A1 |
A scatterometer configured to measure a property of a substrate, includes a radiation source configured to provide a radiation beam; and a detector configured to detect a spectrum of the radiation beam reflected from a target (30) on the...
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WO/2009/118148A1 |
Four separately polarized beams are simultaneously measured upon diffraction from a substrate (W) to determine properties of the substrate. Linearly, circularly or elliptically polarized radiation is transmitted through a first beam spli...
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WO/2009/115342A1 |
The measurement of two separately polarized beams (Ix, Iy) upon diffraction from a substrate (W) in order to determine properties of the substrate is disclosed. Circularly or elliptically polarized radiation is passed via a variable phas...
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WO/2009/112174A1 |
Disclosed is an integrated polarization sensor comprising a polarization sensor element (30) that has an optoelectronic sensor (31) and a polarizing filter structure (32). The optoelectronic sensor (31) and the polarizing filter structur...
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WO/2009/106728A1 |
The present invention relates to a method and a device for direct, non-deformed one-shot measurement of the transient birefringence induced in an optical medium by a perturbation lying within the terahertz frequency range. The aim of the...
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WO/2009/069127A1 |
A polarimeter based on a modified Fizeau interferometer and a method for measuring the optical rotation of a polarized light beam by an optically active substance using the polarimeter, are provided.
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WO/2009/059313A1 |
Methods and apparatus for concentration determination using polarized light. The apparatus includes a first polarized light source having a first light source polarization axis and a second polarized light source having a second light so...
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WO/2009/048003A1 |
A surface examining device exhibiting an improved defect detection accuracy by increasing the amount of information used for pattern defect detection. A diverging light beam emitted from a light source (1) is converted into a linearly po...
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WO/2008/130383A9 |
The present invention generally relates to new photophysical characteristics associated with certain macromolecules, heterogeneous phases with a pronounced index of refraction contrast, and biological complex macromolecules. Given this, ...
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WO/2009/039274A2 |
A method is provided for measurement of dispersion or other optical and mechanical properties within a waveguide by inducing four-photon mixing at different locations within the waveguide by timing a pump signal to counter-collide with a...
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WO/2009/019887A1 |
It is an object to provide an image processing device and the like that can extract shade and shadow regions from an image picked-up by a snap shot without the necessity for such a large scale system as to fluctuate a light source. An im...
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WO/2009/016345A1 |
A polarimetric imaging apparatus (2) and method for distinguishing objects of interest within a scene, said apparatus comprising means for resolving electromagnetic radiation received from the scene having a first substantially circular ...
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WO/2009/015723A1 |
The invention relates to a sensor for determining a concentration of a substance contained in a fluid-containing matrix, with a measurement chamber (5), a sender (3) for the emission of optical radiation (6) into the measurement chamber,...
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WO/2009/009478A1 |
A sensor for measuring in a borehole at least one of orientation, acceleration and pressure, the sensor including: a light source; a birefringent material receiving light from the source; and a photodetector for measuring light transmitt...
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WO/2009/007479A1 |
The invention relates to a light detection method and system which can also be used simultaneously to determine the polarisation angle of the incident light with high sensitivity. More specifically, the contrast obtained for signals line...
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WO/2008/147575A2 |
Methods and apparatus (10, 20, 25, 60, 70) for detecting variations in electromagnetic fields, in particular, terahertz (THz) electromagnetic fields, are provided. The methods and apparatus employ polarization detection devices (120) and...
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WO/2008/135438A1 |
A method and apparatus for analysing the three-dimensional electromagnetic field resulting from an interaction between a focused illuminating beam and a sample to be observed, by characterising the distribution of the state of polarisati...
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WO/2008/133650A2 |
A triangulation system including a laser beam, optics focusing the laser beam on an object, a light detection unit detecting light reflected from the object due to impingement of the beam on the object, and an arrangement for determining...
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WO/2008/128024A1 |
An imaging polarimeter optics unit comprising: a first polarization-sensitive beam-splitter optic, a retarder, a second polarization-sensitive beam-splitter optic, and an analyzer, through which input light passes in sequence, wherein th...
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WO/2008/115417A1 |
An ellipsometer or polarimeter system and method for controlling intensity of an electromagnetic beam over a spectrum of wavelengths by applying control (P2) and beam (P) polarizers, optionally in combination with an intervening and cont...
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WO/2008/105277A1 |
A compensating layer optical property evaluating method and a compensating layer optical property evaluating device are provided for making it possible to precisely and highly accurately evaluate the optical property of a compensating la...
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WO/2008/097562A1 |
A system, method and computer program product provides for avoiding collision between a vehicle and a target object. Pluralities of images from the target object are sensed. Pluralities of polarized images are generated from the sensed i...
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WO/2008/077839A1 |
An imager comprising a detector (14) having at least one element sensitive to radiation having a first polarisation and at least one element sensitive to radiation having a second polarisation and means for simultaneously directing (12) ...
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WO/2008/067938A1 |
An improved method and an improved apparatus for measuring birefringence and/or retardation on samples (3) are distinguished, inter alia, by the following measures: with a radiation arrangement having at least one light source (LQ1, LQ2)...
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WO/2008/058184A2 |
An apparatus and method for determining the concentration of chiral molecules in a fluid includes a first polarizer configure to polarize light in substantially a first plane to provide initially polarized light. A second polarizer is ca...
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WO/2008/054666A2 |
A buffered optical fiber includes at least one optical fiber having a buffer layer. In one embodiment, the buffer layer generally surrounds the optical fiber and has a non-round cross- section that includes a plurality of wings that are ...
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WO/2008/051211A1 |
System and methodology for setting, an compensating detected errors between intended an realized Angle-of-Incidence (AOI) an Plane-of-Incidence (POI) settings in ellipsometer an the like systems during analysis of sample characterizing d...
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WO/2008/048402A2 |
An apparatus for imaging a tooth having a light source with a first spectral range and a second spectral range. A polarizing beamsplitter (18) light having a first polarization state toward the tooth and directs light from the tooth havi...
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WO/2008/048312A2 |
Disclosed are system for and method of analyzing asample at substantially the exact same small spot point on a sample with a plurality of wavelengths.
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WO/2008/046820A1 |
The subject of the invention is a polarimetric imaging system having an optical axis and comprising means (35) for detecting and analysing the light backscattered by an object illuminated by a light source and at least one programmable w...
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WO/2008/037392A1 |
The invention relates to a method for determining the colour components of the light from a light source by means of an image sensor, wherein the image sensor can be used to record an image, which is subdivided into image units, of a sce...
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WO/2008/033218A1 |
An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image (122) from the tooth and a second spectral range for exciting a fluo...
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WO/2008/033779A2 |
A system and method for inspection of a substrate for various defects is herein disclosed. Polarizing filters (12) are used to improve the contrast of polarization dependent defects such as defocus and exposure defects, while retaining t...
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WO/2008/030224A1 |
The present invention pertains to Lithium-Niobate fiber optical sensors ("LNCF") and systems for detection of load or pressure and strain or deformation changes that occur in a host material. The host material can be a component of a sys...
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WO/2008/024910A2 |
A level meter for measuring a liquid surface level in a tank includes a housing that attaches to the tank, an optical source and an optical sensor in the housing that transmit a laser pulse toward the liquid surface and receive the refle...
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