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| Number | Title | Issue Date |
| 7869039 | Microscopic-measurement apparatus A microscopic-measurement apparatus capable of conducting measurement successively in several set areas regardless of the type of stage driving system or the precision of the stage driving system. The microscopic-measurement apparatus for acquiring optical informati... | 01/11/2011 |
| 7859666 | Electric field sensor The present invention relates to an electric field sensor including: a light source (1); an electro optic crystal (7) which is applied with an electric field based on a signal under test, in which a birefringent index changes according to the electric ... | 12/28/2010 |
| 7830512 | System and method for controlling intensity of a beam of electromagnetic radiation in ellipsometers and polarimeters 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 control compensator (C). | 11/09/2010 |
| 7705986 | Sensor unit and image display apparatus A sensor unit for measuring a response characteristic of a polarization rotation liquid crystal cell, includes a measurement light source which emits measurement light, a first polarization plate which has a first polarization direction and receives the measurement ... | 04/27/2010 |
| 7548315 | System and method to compensate for critical dimension non-uniformity in a lithography system A system and method are used to compensate for critical dimension non-uniformity caused by different polarization directions in an illumination beam. A system comprises a source of radiation and an optical system. The source of radiation produces a beam of radiation... | 06/16/2009 |
| 7528952 | Hand-held fluorescence polarimeter A small, portable, hand-sized apparatus for detecting microorganisms or chemicals in liquid samples by fluorescence polarization. The apparatus operates using a low power excitation light source, such as an LED, in order to irradiate a sample with polarized light. D... | 05/05/2009 |
| 7440103 | Inspection apparatus of wiring pattern, inspection method, detection apparatus, detection method A wiring pattern inspection apparatus comprises a light source, a parallel light guiding section which guides light from the light source substantially in parallel, and a light extraction section which extracts a transverse wave light component crossing the light gu... | 10/21/2008 |
| 7436569 | Polarization measurement and self-calibration based on multiple tunable optical polarization rotators Devices and techniques for generating and analyzing states of polarization in light using multiple adjustable polarization rotators in various applications. ... | 10/14/2008 |
| 7427932 | Compressive sampling and signal inference An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a plurality of sensors. The optical signal is collected at each subaperture of... | 09/23/2008 |
| 7408640 | Fluorescence polarization instruments and methods for detection of exposure to biological materials by fluorescence polarization immunoassay of saliva, oral or bodily fluids The inventive subject matter relates to a method for detecting the presence of a biological substance of interest in a test sample of saliva or oral fluid, comprising combining said test sample with a fluorescence-labeled ligand to said biological substance and dete... | 08/05/2008 |
| 7405826 | Systems and methods for chiroptical heterodyning An apparatus and method for improved detection of a chiral property of a sample begins with a probe beam of light having a first modulation frequency ω and is further modulated with a second modulation frequency φ. A non-linear photo-detector, which may include mu... | 07/29/2008 |
| 7355726 | Linear variable reflector sensor and signal processor Linear variable reflector sensors can be used to measure the displacement of objects. These sensors are useful in that they can be very small, do not conduct electricity, and are resistant to electrical interference from EMI/EMP and lightning strikes. The present li... | 04/08/2008 |
| 7349089 | High transmission multi-wavelength filter and method An optical arrangement and method of filtering include a beam splitter that accepts an incident beam and transmits light from the incident beam of a first polarization and reflects light from the incident beam of a second polarization. The transmitted light is a fir... | 03/25/2008 |
| 7336359 | System and method for nonlinear optical null ellipsometry Nonlinear optical null ellipsometry is disclosed as a method to evaluate second-order nonlinearities on and off resonance in thin surface films and bulk materials. ... | 02/26/2008 |
| 7327472 | High temperature, minimally invasive optical sensing modules A remote temperature sensing system includes a light source selectively producing light at two different wavelengths and a sensor device having an optical path length that varies as a function of temperature. The sensor receives light emitted by the light source and... | 02/05/2008 |
| 7321427 | Multiple beam ellipsometer An ellipsometric apparatus provides two impinging focused probe beams directed to reflect off the sample along two mutually distinct and preferably substantially perpendicular directions. A rotating stage rotates sections of the wafer into the travel area defined by... | 01/22/2008 |
| 7304736 | Method and apparatus for measuring polarization A method of nonlinear polarimetry for measuring higher order moments of the E field of an optical signal is provided. The method includes imposing a phase delay on a first polarization of a received optical signal with respect to a second polarization of the optical... | 12/04/2007 |
| 7295312 | Rapid 4-Stokes parameter determination via Stokes filter wheel A system for determining polarization profiles of points in a scene from video frames using Stokes parameters includes a scene having a region that emits scene light rays that correspond to the points in the scene, an optical chopper controller, a rotating Stokes fi... | 11/13/2007 |
| 7292389 | Circular extinction contrast imaging microscope Systems and methods for producing circular extinction (CE) contrast images of anisotropic samples. Microscope systems for determining circular extinction (CE), the differential transmission of left and right circularly polarized light resulting from circular dichroi... | 11/06/2007 |
| 7289210 | Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres This invention provides a novel, rapid method and device for determining the relative phase retardation of different layers of a multi-layered specimen, which is related to the thicknesses of its layers and walls, and the orientations of its optical axes. An intact ... | 10/30/2007 |
| 7289223 | Method and apparatus for spatially resolved polarimetry A method and an apparatus for the spatially resolved polarimetric examination of an imaging beam pencil (1) generated by an associated pulsed radiation source (9). A first and a second photoelastic modulator (6a, 6b) and a p... | 10/30/2007 |
| 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 |
| 7283231 | Compressive sampling and signal inference A transmission mask or cooled aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmission function. The optical signal transmitted by the mask is detected ... | 10/16/2007 |
| 7253899 | Apparatus and method for measuring optically active materials Apparatus and method for sensing and measuring optically active material in a sample, comprising: a) a light source emitting light of a wavelength that can pass through the sample; b) a light transparent sample con... | 08/07/2007 |
| 7239390 | Modulated scatterometry An apparatus for scatterometry measurements is disclosed. The apparatus includes a modulated pump source for exciting the sample. A separate probe beam is directed to interact with the sample and the modulated optical response is measured. The measured data is subje... | 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 |
| 7218436 | Optical instrument and measurements using multiple tunable optical polarization rotators Devices and techniques for generating and analyzing states of polarization in light using multiple adjustable polarization rotators in various applications. ... | 05/15/2007 |
| 7206069 | Optical analyzers of polarization properties A passive optical system substantially simultaneously separates light received at an optical input into three or more output light beams on optical outputs. The output light beams may have intensities that are proportional to intensities of optical projections of th... | 04/17/2007 |
| 7199882 | Method and system for high speed measuring of microscopic targets A system including confocal and triangulation-based scanners or subsystems provides data which is both acquired and processed under the control of a control algorithm to obtain information such as dimensional information about microscopic targets which may be “non... | 04/03/2007 |
| 7196792 | Liquid crystal based polarimetric system, a process for the calibration of this polarimetric system, and a polarimetric measurement process A liquid crystal based polarimetric system, a process for the calibration of this polarimetric system, and a polarimetric measurement process intended for measuring the representative parameters of a sample in which the polarimetric system contains an excitation sec... | 03/27/2007 |
| 7149561 | Optical spectroscopy pathlength measurement system A physiological monitor utilizes Faraday rotation measurements to estimate mean photon pathlengths through tissue. These pathlength estimates, along with corresponding optical spectroscopy measurements allow the noninvasive monitoring of blood constituent concentrat... | 12/12/2006 |
| 7136164 | Multiple beam ellipsometer An ellipsometric apparatus provides two impinging focused probe beams directed to reflect off the sample along two mutually distinct and preferably substantially perpendicular directions. A rotating stage rotates sections of the wafer into the travel area defined by... | 11/14/2006 |
| 7130027 | Reflection-photometric analytical system This invention generally relates to a reflection-photometric analytical system having a measuring head comprising a source of radiation and a radiation detector for the reflection-photometric analysis of a target surface of a test object arranged at a distance from ... | 10/31/2006 |
| 7120309 | Ghost image correction system and method A new and useful method and system for correcting for ghost images in a telecentric optical system is provided. Ghost images generated from planar optical surfaces in the image space after the major elements of a telecentric optical system are shift invariant. In ot... | 10/10/2006 |
| 7106327 | Systems and methods for modeling the impact of a medium on the appearances of encompassed light sources The present invention provides systems and methods for modeling the impact of a medium on the appearances of encompassed light sources using a Legendre polynomial series solution to a Radiative Transfer Equation for Spherical Media (RTE-SM) called an Atmospheric Poi... | 09/12/2006 |
| 7092094 | Coordinated polarization for shiny surface measurement The present disclosure provides for an optical metrology system for scanning an object (106) having a shiny surface. The optical metrology system includes at least one light source (102) configured and adapted to emit a structured light pattern (L) aga... | 08/15/2006 |
| 7084976 | Concentration measuring instrument To measure the concentration of an optically active substance in a solution without contacting the solution, the concentration measuring apparatus of the present invention includes: a light source for outputting linearly polarized light; a light intensity detecting ... | 08/01/2006 |
| 7079246 | Method and apparatus for measuring polarization An improved method and apparatus for the measurement of the polarization of light uses nonlinear polarimetry. The higher order moments of the E field are measured and then transformed into standard polarimetry parameters yielding the polarization of the light. In a ... | 07/18/2006 |
| 7079249 | Modulated reflectance measurement system with fiber laser technology A modulated reflectance measurement system includes two diode-based lasers for generating a probe beam and an intensity modulated pump beam. The pump and probe beams are joined into a collinear beam using a laser diode power combiner. One or more optical fibers are ... | 07/18/2006 |
| 7079245 | Method and apparatus for detecting gap of liquid-crystal panel and apparatus therefor Light from a light source 10 is linearly polarized by a polarizer 11. Then it propagates via a half-mirror 12 almost parallel to the normal to a reflective liquid-crystal panel 13 and falls on the reflective liquid-crystal panel 13. | 07/18/2006 |
