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| Number | Title | Issue Date |
| 8107076 | Polariscope toy and ornament with accompanying photoelastic and/or photoplastic devices A variety of toy polariscopes are simpler in design and less costly than precision instruments used in scientific research and stress analysis of materials and structures. The toy polariscopes are designed for a variety of objects that may exhibit photoelastic prope... | 01/31/2012 |
| 8009291 | Sensor for measuring living body information and keypad assembly using the same A sensor for measuring living body information and a keypad assembly including the sensor includes a light guide panel for guiding a first light. A light extracting pattern is provided on the light guide panel for outputting the first light guided by the light guide... | 08/30/2011 |
| 7796259 | Rapid acquisition ellipsometry 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 the region between the optica... | 09/14/2010 |
| 7760357 | Tachyonized material test method Many suppliers claimed their products have been Tachyonized™ since the discovery and commercialization of Tachyonized™ products by Advanced Tachyon Technologies International. Genuine materials that have been Tachyonized have demonstrated a range of beneficial p... | 07/20/2010 |
| 7630077 | System and method for imaging through an irregular water surface An underwater imaging system includes an underwater imaging polarimeter that captures images of the water surface. The captured images are indicative of the captured light, and are equivalent to four-component Stokes vector S=(I,Q,U,V) data. Advantageously, the pass... | 12/08/2009 |
| 7369234 | Method of performing optical measurement on a sample The invention relates to a method of performing an optical measurement on a sample, such as an ellipticity measurement. The sample is irradiated with a polarized irradiation beam and a return beam is linearly polarized. The irradiation or return beam is modulated wi... | 05/06/2008 |
| 7369232 | Stokes parameter measurement device and method An object is to accurately measure the Stokes parameters, without the occurrence of polarization fluctuations or PDL during the splitting of the incident light. When the incident light is made incident on a first-stage prism, the light is split into two first splitt... | 05/06/2008 |
| 7317517 | Birefringence profiler A waveguide under test can be exposed to a light signal whose polarization rotates between the vertical and horizontal polarizations. The intensity detected at a photodetector can be separated into AC and DC components. The AC components may be utilized to derive a ... | 01/08/2008 |
| 7301632 | Polarization state conversion in optically active spectroscopy The invention describes a method to eliminate instrumental offset in measurement of optically active scattering and circular dichroism. The method uses the time-average measurement of the light that is systematically transformed by a series of optical devices. The o... | 11/27/2007 |
| 7283234 | Use of ellipsometry and surface plasmon resonance in monitoring thin film deposition or removal from a substrate surface Improved methodology for monitoring deposition or removal of material to or from a process and/or wittness substrate which demonstrates a negative e1 at some wavelength. The method involves detection of changes in P-polarized electromagnetism ellipsometric DE... | 10/16/2007 |
| 7271900 | Magneto-optical imaging method and device A quantitative magneto-optical imaging method is used to form an image of a target material. An active material is placed close to the target material and produces a Faraday rotation in a polarized light beam. The Faraday rotation of the active material is essential... | 09/18/2007 |
| 7267880 | Presence indicator for removable transparent film A substrate having a surface carrying a removable transparent film that can be removed by the surface by a desired washing process, and removable presence indicator associated with the removable transparent film, the presence indicator being removable by the same de... | 09/11/2007 |
| 7262848 | Fiber polarimeter, the use thereof, as well as polarimetric method A fiber polarimeter has one or more oblique fiber Bragg gratings disposed one behind the other in a fiber. The fiber Bragg gratings couple out portions of a light wave input to the fiber depending on its polarization. For more than one fiber Bragg grating a wave pla... | 08/28/2007 |
| 7239382 | Polarizing plates grading method In a polarizing plate grading method a first measurement range A1 is chosen on a polarizing plate. After conducting an initial measurement by putting the polarizing plate under X1° C. for Y1 hours, the first measurement range is mea... | 07/03/2007 |
| 7239392 | Polarization modulation photoreflectance characterization of semiconductor electronic interfaces A polarization modulation photoreflectance technique has been developed for optical characterization of semiconductor electronic interfaces. By using a laser source in conjunction with polarization state modulation, a polarization modulation spectroscopy technique m... | 07/03/2007 |
| 7227638 | Calibration system and method for calibration of various types of polarimeters A calibration system is integrally provided with a polarimeter in which the calibration system and the polarimeter each receives a radiance sample from a spectral band of a scene. Radiances provided by the calibration system used to provide the relative responsivity... | 06/05/2007 |
| 7224457 | Performing retardation measurements Some embodiments include a system having a polarizer and an analyzer to define a light transmission axis. Both the polarizer and the analyzer have a polarization transmission direction, which is substantially perpendicular to the light transmission axis. A first wav... | 05/29/2007 |
| 7221454 | Photopolarimeters and spectrophotopolarimaters with multiple diffraction gratings In a device for measuring the complete polarization state of light over a spectral bandwidth, an optical input signal (41) with wavelengths of light within a spectral band is incident on two or more diffraction gratings (42, 44, 46, 48), or incident fr... | 05/22/2007 |
| 7215469 | Confocal microscope A confocal microscope comprises a light source emitting a polarized light beam, an objective lens irradiating the polarized light beam, which is deflected and scanned by the optical scanner, to the sample as an excitation light beam, a wavelength separator detecting... | 05/08/2007 |
| 7092092 | Hand-carried LED polariscope A polariscope that measures stress in glass and that is adapted to be hand-carried includes a lightweight, C-shaped housing with a sequential arrangement of a battery-powered LED light source, a first polarizer, a full wave plate at one distal end, and a second pola... | 08/15/2006 |
| 7075648 | Performing retardation measurements Some embodiments include a system having a polarizer and an analyzer. ... | 07/11/2006 |
| 7061621 | Interferometric-based device and method for determining chromatic dispersion of optical components using a polarimeter It is possible to improve the manner in which the chromatic dispersion of a sample (4) is determined. To this end, the sample (4) is irradiated in an interferometer (10), with the light of a radiation source (1). A downstream polarimeter ... | 06/13/2006 |
| 7038776 | Polarimeter to simultaneously measure the stokes vector components of light A polarimeter simultaneously measures the Stokes vectors of a light beam using an optics unit with a slit with a slit axis, a foreoptics that focuses the light beam from the point location through the slit, a collimator that receives the light beam from the slit and... | 05/02/2006 |
| 7038848 | Confocal microscope A confocal microscope comprises a light source emitting a polarized light beam, an objective lens irradiating the polarized light beam, which is deflected and scanned by the optical scanner, to the sample as an excitation light beam, a wavelength separator detecting... | 05/02/2006 |
| 7034939 | Calibration system and method for calibration of various types of polarimeters A calibration system is integrally provided with a polarimeter in which the calibration system and the polarimeter each receives a radiance sample. Radiances provided by the calibration system used to provide the relative responsivity calibrations among the polarime... | 04/25/2006 |
| 7024343 | Method for calibrating a mathematical model A method is disclosed for calibrating a mathematical model of a component using prototype full-field experimentally collected deformation/strain data. Specifically, the method involves obtaining actual experimental field data using strain sensitive coating material ... | 04/04/2006 |
| 7023548 | Photoelectric measuring device A device for the density or colorimetric measurement of a measured object, i.e., a densitometer or colorimeter, comprising a light source for directing measurement light onto an object to be measured, a polarization filter positioned between the light source and the... | 04/04/2006 |
| 7012537 | Apparatus and method for determining voltage using optical observation A beacon circuit enabling study of active elements in an integrated circuit is disclosed. The beacon circuit may be integral to a DUT to be tested. The DUT is stimulated by a conventional ATE, so that its active devices are operating. The signal from the active devi... | 03/14/2006 |
| 7002685 | System for measuring of both circular and linear birefringence A system and method for precisely measuring low-level linear and circular birefringence properties (retardance and direction) of optical materials (26). The system incorporates a photoelastic modulator (24) for modulating polarized light that is then d... | 02/21/2006 |
| 6975397 | Polarization state conversion in optically active spectroscopy The invention describes a method to eliminate instrumental offset in measurement of optically active scattering and circular dichroism. The method uses the time-average measurement of the light that is systematically transformed by a series of optical devices. The o... | 12/13/2005 |
| 6927853 | Method and arrangement for optical stress analysis of solids A method for optical stress analysis comprises the steps of directing an incident beam of polarized light to the sample to be analyzed and analyzing a light bundle exiting the sample in two detection channels extending perpendicular to one another with respect to th... | 08/09/2005 |
| 6917427 | Highly accurate calibration of polarimeters Highly accurate calibration of a polarimeter of the type having at least four detectors involves using four known states of polarisation of an input light signal (calibration polarisations) and at least one further state of polarisation. All input states of polarisa... | 07/12/2005 |
| 6909506 | Stokes parameter measurement device and method An object is to accurately measure the Stokes parameters, without the occurrence of polarization fluctuations or PDL during the splitting of the incident light. When the incident light is made incident on a first-stage prism, the light is split into two first splitt... | 06/21/2005 |
| 6906800 | Polarimeter using quantum well stacks separated by gratings Quantum well stacks are used in combination with linear gratings to determine the degree of polarization of incident light in terms of Stokes parameters. Interference from multiple reflections, diffractions and transmissions of the light propagating from and through... | 06/14/2005 |
| 6856391 | Method and apparatus for determining the polarization properties of light emitted, reflected or transmitted by a material using a laser scanning microscope The invention relates to a method and apparatus for determining the polarization properties of light emitted, reflected or transmitted by a material using a laser scanning microscope with the tested material being illuminated point by point with a laser beam of know... | 02/15/2005 |
| 6847448 | Polarization analyzing apparatus and method for polarization analysis A polarization analyzing apparatus includes: a light source for generating optical pulses; a light dividing part; an electromagnetic wave radiation part; a collimation part; a polarizer part; a light analyzer part; a condenser part; an optical time-delay part; an el... | 01/25/2005 |
| 6816260 | Fiber polarimeter, the use thereof, as well as polarimetric method A fiber polarimeter has one or more oblique fiber Bragg gratings disposed one behind the other in a fiber. The fiber Bragg gratings couple out portions of a light wave input to the fiber depending on its polarization. For more than one fiber Bragg grating a wave pla... | 11/09/2004 |
| 6747739 | Observing techniques and its evaluation equipments of filler packing-structure for resin polymer composite filled with ceramic filler-powder This invention relates to a method of measuring the internal structure (packing structure or dispersion condition of particulate material) of a composite filled with particles having an irregular matrix by observations based on its optical anisotropy, in which the i... | 06/08/2004 |
| 6621067 | Polarization independent photodetector device and method of making same A photodetector device comprising a photosensitive detector (12; 96) and one or more interfaces (20', 20", 28, 98) between dissimilar media is configured so that a light beam (LB) for detection will pass through the interface(s) along a beam axis that is ... | 09/16/2003 |
| 6538754 | Method of measuring thickness of cell gap of reflective type liquid crystal display A method of measuring the thickness of a cell gap of a reflective type liquid crystal display. An optical system having a rotating table, an input polarizer, a beam splitter, and a output polarizer is used. A reflective type liquid crystal device is dispo... | 03/25/2003 |
