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| Number | Title | Issue Date |
| 7619735 | Optical inspection using variable apodization A method for optical inspection of a surface includes selecting an apodization scheme in response to a characteristic of the surface, and applying an apodizer to apodize a beam of radiation in response to the selected apodization scheme. The apodized beam of radiati... | 11/17/2009 |
| 7423751 | Systems and methods for use in detecting harmful aerosol particles The invention provides systems and methods for detecting aerosols. The systems and methods can be used to detect harmful aerosols, such as, bio-aerosols. ... | 09/09/2008 |
| 7355696 | Method and apparatus for sorting cells Apparatus for sorting and orienting sperm cells has a pair or walls in confronting relationship forming a flow chamber having inlet, a downstream outlet, and intermediate detector region. The inlet receives first and second spaced apart streams of input fluid and a ... | 04/08/2008 |
| 7315372 | Instrument using near-field intensity correlation measurements for characterizing scattering of light by suspensions Imaging systems may include a light source that directs light towards a scattering medium. A digital imaging system receives transmitted light that is transmitted through the scattering medium substantially without being scattered, and also receives multiple compone... | 01/01/2008 |
| 7301619 | Evaluating a multi-layered structure for voids A method and apparatus measure properties of two layers of a damascene structure (e.g. a silicon wafer during fabrication), and use the two measurements to identify a location as having voids. The two measurements may be used in any manner, e.g. compared to one anot... | 11/27/2007 |
| 7294513 | Method and apparatus for characterizing solutions of small particles A method and apparatus is described by which means molecules in suspension may be characterized in terms of the size and mass distributions present. As a sample solution is separated by centrifugal means, it is illuminated at a particular radial distance from the ax... | 11/13/2007 |
| 7289232 | Dimension measurement method, method of manufacturing semiconductor device, dimension measurement apparatus and measurement mark A dimension measurement method includes irradiating a measurement mark on a sample on which a pattern to be measured is formed with light from a measurement direction, detecting reflected diffracted light from the measurement mark to measure intensity thereof, and c... | 10/30/2007 |
| 7285790 | Optical measurement system for living bodies and method thereof A response period is determined arbitrarily. A satisfactory detecting ability may not be provided because of an artifact or the like contained in a signal. Therefore, an effective detection method and an effective display method of presenting results of detection mu... | 10/23/2007 |
| 7244902 | Method for classifying wine and coffee A method for classifying beverages of natural origin, such as wine or coffee. Classification is carried out by means of NIR spectroscopy and corresponding numerical-mathematical conditioning of the spectral data of the individual beverage samples, wherein respective... | 07/17/2007 |
| 7239387 | Fire detection method and fire detector therefor The sensitivity of scattered-light fire detectors for small particles can be increased substantially when blue light is introduced into the measuring volume in addition to an infrared radiation and the scattered radiation produced by the particles is measured and ev... | 07/03/2007 |
| 7235786 | Sensor for detecting fog-like media The invention relates to a sensor for detecting fog-like media, comprising at least two emitters and at least one receiver, whereby the emission axes intersect with the receiver axis at two different positions. The inventive sensor also comprises an evaluation unit ... | 06/26/2007 |
| 7180591 | Semiconductor processors, sensors, semiconductor processing systems, semiconductor workpiece processing methods, and turbidity monitoring methods Semiconductor processors, sensors, semiconductor processing systems, semiconductor workpiece processing methods, and turbidity monitoring methods are provided. According to one aspect, a semiconductor processor includes a process chamber configured to receive a semi... | 02/20/2007 |
| 7064823 | Consumable tube for use with a flow cytometry-based hematology system The present invention is a flow cytometry-based hematology system useful in the analysis of biological samples, particularly whole blood or blood-derived samples. The system is capable of determining at least a complete blood count (CBC), a five-part white blood cel... | 06/20/2006 |
| 7053783 | Pathogen detector system and method A pathogen detector has a sample area for containing environmental air, a light source on one side of the sample area for directing a collimated beam of light through the sample air so that part of the light beam will be scattered by any particles present in the air... | 05/30/2006 |
| 6972845 | Collimator and spectrophotometer A collimator obtained by the alternate stacking of metal sheets 1 (40 μm thick) having holes 4 with a width of 2200 μm in the center thereof, and metal sheets 2 (10 μm thick) devoid of holes (the metal sheets 1 with the holes 4 ... | 12/06/2005 |
| 6944322 | Optical tomography of small objects using parallel ray illumination and post-specimen optical magnification A parallel-beam optical tomography system for imaging an object of interest includes a parallel ray beam radiation source that illuminates the object of interest with a plurality of parallel radiation beams. After passing through the object of interest the pattern o... | 09/13/2005 |
| 6922241 | Fiber optic apparatus for detecting light scatter to differentiate blood cells and the like Apparatus for detecting light scattered by a small particle (e.g., a blood cell) irradiated by a light beam comprises one or more photodetectors and a plurality of optical fibers that serve to optically couple the scattered light and the photodetector(s). To enhance... | 07/26/2005 |
| 6867862 | System and method for characterizing three-dimensional structures A metrology system for characterizing three-dimensional structures and methods for manufacturing and using same. The metrology system includes a measurement system that preferably comprises an energy source and energy detector and that is in communication with a pro... | 03/15/2005 |
| 6859276 | Extracted polarization intensity differential scattering for particle characterization A particle sizing method and apparatus of the PIDS type uses randomly polarized radiation to irradiate a particle sample. Portions of the resulting side scattering pattern are decomposed to simultaneously produce, for each decomposed portion, first and second linear... | 02/22/2005 |
| 6815694 | Apparatus and method for probing light absorbing agents in biological tissues A method and apparatus are presented for detecting an effect of interactions of electromagnetic radiation with ultrasound radiation at different locations within a region of interest in a scattering medium to thereby enable imaging of said medium. A plurality of seq... | 11/09/2004 |
| 6813303 | Laser oscillator and light scattering particle detector using the same According to the present invention, there is provided a light scattering type particle detector, using a semiconductor laser as a light source, for detecting particles contained in sample fluid which defines a flow path, wherein laser light generated from the semico... | 11/02/2004 |
| 6798508 | Fiber optic apparatus for detecting light scatter to differentiate blood cells and the like Apparatus for detecting light scattered by a small particle (e.g., a blood cell) irradiated by a light beam comprises one or more photodetectors and a plurality of optical fibers that serve to optically couple the scattered light and the photodetector(s). To enhance... | 09/28/2004 |
| 6784981 | Flow cytometry-based hematology system The present invention is a flow cytometry-based hematology system useful in the analysis of biological samples, particularly whole blood or blood-derived samples. The system is capable of determining at least a complete blood count (CBC), a five-part white blood cel... | 08/31/2004 |
| 6774994 | Method and apparatus for determining absolute number densities of particles in suspension A method for determining absolute number densities of particles in a solution is disclosed based on a light scattering method. A light scattering photometer is calibrated to produce the Rayleigh ratio at each angle measured with respect to light scattered per unit i... | 08/10/2004 |
| 6630990 | Optical method and apparatus for red blood cell differentiation on a cell-by-cell basis, and simultaneous analysis of white blood cell differentiation Methods and apparatus are disclosed for determining the volume, hemoglobin concentration, maturity and cell shape of mammalian red blood cells in a whole blood sample and simultaneously monitoring system standardization. Methods for distinguishing red blo... | 10/07/2003 |
| 6600559 | On-line method for detecting particle size during a milling process An on-line method for detecting particle size of a liquid during a process in which there is not a correlation between low absorbance with small particle size, the method comprises the steps of measuring a plurality of reference particle sizes each associ... | 07/29/2003 |
| 6587203 | Sort stream stabilizer for flow cytometer A flow cytometer includes a temperature regulator that maintains the temperature of the piezoelectric actuator sufficiently constant so as to produce a consistent predetermined oscillation frequency, and corresponding consistent predetermined droplet brea... | 07/01/2003 |
| 6586193 | Analyte assay using particulate labels Method for specific detection of one or more analytes in a sample. The method includes specifically associating any one or more analytes in the sample with a scattered-light detectable particle, illuminating any particle associated with the analytes with ... | 07/01/2003 |
| 6570999 | Soil particle and soil analysis system A soil analysis system for determining one or more categories of soil based upon the particle sizes in a soil sample. The soil analysis system includes an image sensor and an image analysis assembly. The image sensor produces an image to distinguish indiv... | 05/27/2003 |
| 6565815 | Heat exchanging, optically interrogated chemical reaction assembly The present invention provides a reaction vessel and apparatus for performing heat-exchanging reactions. The vessel has a chamber for holding a sample, the chamber being defined by a plurality of walls, at least two of the walls being light transmissive t... | 05/20/2003 |
| 6544770 | Quantitation of viruses by light scattering A method for determining the number or concentration of virus particles in a sample by use of a light scattering detector. The method may be used to quantitate purified virus preparations or virus samples containing contaminants, including ultraviolet lig... | 04/08/2003 |
| 6496258 | Device and method for simultaneous in-situ determination of particle size and mass concentration of fluid-borne particles Method and device for simultaneous in-situ determination of particle size and mass concentration of fluid-borne particles, wherein the device includes a sensor unit comprising a sending unit and a receiver, a laser coupled to the sensor unit, a detector c... | 12/17/2002 |
| 6469786 | Particle size analyzer based on the laser diffraction method Scattered light obtained by irradiating parallel laser beam to particles to be measured is condensed by a condenser lens in a wide angle area from 0° to over 40°, and an intensity distribution of the light is spatially continuously measured by an optica... | 10/22/2002 |
| 6466318 | Device for measuring particulate volume and mean size in water The invention is a submersible laser scattering instrument that measures particle total volume, particle total area and Sauter mean diameter. It allows a single calibration for all particle sizes 1.2-250 μm. A beam of laser light is directed across a voi... | 10/15/2002 |
| 6411383 | Method for measuring the 2nd virial coefficient A method is described to determine the 2nd virial coefficient of an ensemble of molecules dissolved in a selected solvent. Two distinct classes are described: monodisperse and polydisperse molecules. If the molecules are monodisperse, they must... | 06/25/2002 |
| 6407812 | Laser beam optical axis adjusting mechanism in particle size distribution measuring apparatus A laser beam optical adjusting mechanism for a particle size distribution measuring apparatus includes a light source to provide a laser beam for irradiating a sample cell and an optical detector unit for receiving an intensity pattern representing the im... | 06/18/2002 |
| 6404494 | Measurement of the lidar ratio for atmospheric aerosols using a 180 degree-backscatter nephelometer An integrating nephelometer is modified to measure 180° backscattering from an aerosol. A laser is mounted outside a housing of the nephelometer and produces a coherent light beam that is directed into a sample volume of the nephelometer, substantially a... | 06/11/2002 |
| 6403037 | Reaction vessel and temperature control system The invention provides a reaction vessel and temperature control system for performing heat-exchanging chemical reactions, such as nucleic acid amplification. The vessel has a body defining a reaction chamber, and a loading structure extending from the bo... | 06/11/2002 |
| 6377345 | High sensitivity particle detection A smoke detector is disclosed in which smoke particles are detected by the collection and detection of blue light and infra-red radiation which are emitted into a predetermined path through a scattering volume where the particles may be present. The scatt... | 04/23/2002 |
| 6316185 | Quantitation of viruses by light scattering A method for determining the number or concentration of virus particles in a sample by use of a light scattering detector. The method may be used to quantitate purified virus preparations or virus samples containing contaminants, including ultraviolet lig... | 11/13/2001 |
