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5949532 Method and apparatus for Raman correlation spectroscopy  
A method and an apparatus for determining diffusion parameters, concentration, size or flow behavior of particles in a sample, exciting light of a light source being directed into the sample,...
5946089 Plasma spectrometer with shutter assembly  
Apparatus for optical analysis of a sample, including an energy source, which generates a pulse of energy that is incident on the sample, causing the sample to emit radiation characteristic of the...
5946431 Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces  
A multi-functional photometer includes a scanning mechanism having a housing that bears a movable linkage. The linkage is coupled to an optical scanning head and incorporates light-transmitting...
5946090 Spectrometric method and apparatus for spectrometry  
A spectrometric method is disclosed which uses a novel tunable laser as a monochromatic light source to carrying out spectrometry efficiently. As the tunable laser, a tunable laser is used which...
5943128 Grating-based optical probe  
A dispersive grating, preferably in the form of a volume-phase holographic optical element, or HOE, is used as a beam combiner in an optical measurement probe of the type used to analyze induced...
5943129 Fluorescence imaging system  
A fluorescence imaging system for epi-illumination wherein the usual dichroic beamsplitter is replaced by a polarizing beamsplitter (PBS). The sample is excited with light that is linearly...
5936728 Flash photolysis method and apparatus  
Flash photolysis is carried out in a microscope imaging system while maintaining continuous and superimposed imaging of the target area to which the flash is directed as well as its surroundings....
5933233 Method and device for the determination of material-specific parameters of one or a few molecules by means of correlation spectroscopy  
A method for the determination of material-specific parameters of one or a few molecules by means of correlation spectroscopy wherein the molecule or molecules in a sample in which the molecule(s)...
5929985 Multispectral imaging probe  
A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for...
5926270 System and method for the remote detection of organic material in ice in situ  
A system for remotely detecting organic material in a volume, such as an layer, in situ, includes a light source, an optical receiver and a control subsystem. The light source generates a laser...
5926271 Laser-induced fluorescence detector having a capillary detection cell and method for identifying trace compounds implemented by the same device  
A laser-induced fluorescence detector comprises a laser beam emitting device, a dichroic mirror to deviate the laser light orthogonally, a lens with a small numerical aperture, a ball lens, a...
5919710 Optical method for quantitating dissolved oxygen in fuel  
A method for the quantitative determination of dissolved oxygen in a liquid fuel includes the steps of doping a sample of the fuel with a preselected concentration of a probe material including a...
5920399 Multispectral imaging method and apparatus  
A multispectral imaging method and apparatus adapted for use in determining material properties, especially properties characteristic of abnormal non-dermal cells. A target is illuminated with a...
5917607 Surface plasmon sensor for multiple channel analysis  
A surface plasmon sensor includes a prism, a metal film which is formed on one face of the prism and is brought into contact with a sample, a light source emitting a light beam, an optical system...
5914247 Method and system for detecting fecal and ingesta contamination on the carcasses of meat animals  
A method and apparatus for detecting ingesta or fecal contamination on an animal carcass using fluorescent spectroscopy is disclosed. The surface of the carcass is illuminated with UV or visible...
5909278 Time-resolved fluorescence decay measurements for flowing particles  
Time-resolved fluorescence decay measurements for flowing particles. An apparatus and method for the measurement and analysis of fluorescence for individual cells and particles in flow are...
5905570 Remote electro-optical sensor system for water quality monitoring  
An improved water quality monitoring system and method. The system utilizes reflectance radiometers to provide multiple wavelength measurement of downwelling irradiance and/or upwelling radiance....
5902994 Apparatus for calibrating a linear image sensor  
Apparatus for calibrating a linear image sensor, includes a fluorescent light source, at least as long as the image sensor; a fixture for holding the light source parallel to the image sensor and...
5898493 Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization  
Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes.
5895920 Device for detecting light fluorescence  
A device for detecting fluorescence generated in a sample medium in a cuvette tube irradiated with light for analysis purposes. The device includes a main element comprising a light source, an...
5891658 Single-step, solid-state competitive immunoassay  
Simplicity, sensitivity and versatility of optical sensors based on competitive immunoassays using antibody-antigen reactions are achieved by solid-state, single-step reactions which permit...
5885840 Multiple assays of cell specimens  
A method for increasing the accuracy and the types of data measurements of laser scanned dye stained cells, in a single sample, by means of multiple assays, utilizing cell positions as a factor in...
5882940 Method for assaying photosensitizing drug in plasma  
A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength, is determined by the steps of...
5880830 Spectral imaging method for on-line analysis of polycyclic aromatic hydrocarbons in aerosols  
A method for on-line analysis of polycyclic aromatic hydrocarbons (PAH) in aerosols. The aerosols are collected on non-fluorescing filter paper, excited to fluorescence and imaged spectrally. The...
5865754 Fluorescence imaging system and method  
A system and method non-invasive biomedical optical imaging and spectroscopy with low-level light is described. The technique consists of a modulated light source (120) coupled to tissue (100) of...
5862273 Fiber optic probe with integral optical filtering  
Laser band-pass filter and/or band-reject filters are located at the end of an optical measurement probe by placing an appropriate Bragg grating proximate to the tip, and within, one or both of...
5858800 Optical measurement method and apparatus thereof  
An exciting light 2 is introduced within a slab-type optical waveguide 1, an evanescent wave due to the exciting light 2 excites fluorescent light, and among the fluorescent light, a fluorescent...
5858799 Surface plasmon resonance chemical electrode  
This disclosure describes new methods and devices for sensing redox-active analytes in solution. The invention combines a surface plasmon resonance (SPR) sensor and a chemical electrode sensor. A...
5856866 Image producing apparatus  
An image producing apparatus includes at least one light emitting diode stimulating ray source, a filter for cutting a stimulating ray emitted from the at least one light emitting diode...
5854063 Method and apparatus for spectrophotometric observation of plants  
An instrument is described for making both fluorometric and spectrophotometric images of plants. The instrument includes two sources of electromagnetic radiation, optical components to direct the...
5851835 Multiparameter hematology apparatus and method  
A multi-parameter hematology analyzer and method are provided for in vitro determination of blood parameters. The analyzer apparatus includes a laser for transmitting light through a specimen...
5850285 Advanced missile approach warning system (amaws) and stealth (low observables) detection based on exploitation of quantum effects  
A method and apparatus based on the exploitation of quantum effects related to stimulated emission for detecting the presence of aircraft or missile exhaust plumes in the atmosphere. In the...
5846834 Method for assaying photosensitizing drug in whole blood  
A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength, is determined by the steps of...
5847825 Apparatus and method for detection and concentration measurement of trace metals using laser induced breakdown spectroscopy  
A method and apparatus for in situ detection and concentration measurement of trace elements in an analysis sample is disclosed. The invention uses laser induced breakdown spectroscopy (LIBS)...
5841532 Method for evaluating oxygen concentrating in semiconductor silicon single crystal  
A method and apparatus for evaluating an oxygen concentration in a semiconductor silicon single crystal highly doped with boron at a low cost with a high sensitivity and high reproducibility. The...
5838435 Calibration method for spectroscopic systems  
Calibration spots of optically-characterized material placed in the field of view of a spectroscopic system allow calibration of the spectroscopic system. Response from the calibration spots is...
5830766 Enhanced signal-to-noise ratio and sensitivity optical immunoassay  
A method of assaying for a ligand in a sample involves incubating the sample in contact with a specific binding partner for the ligand carried on one surface of an optical structure, irradiating...
5828452 Spectroscopic system with a single converter and method for removing overlap in time of detected emissions  
A spectroscopic system that processes spatially dispersed electromagnetic emissions at a number of wavelengths from a test material. The spectroscopic system includes a converter that generates an...
5827660 Caged fluorochrome-labeled probes and subtraction of autoflourescence background  
Disclosed are methods for removing autofluorescence background from microscopic images or from flow cytometer measurements. The microscopic images can be fluorescent in situ hybridization images...
5822068 Non-destructive method and apparatus for detection of fruit and vegetable quality  
A non-destructive method of testing of fruits and vegetables for post-harvest quality (firmness, texture, aroma and color) using fluorescence intensity of the skin or leaves is described. A low...
5821547 Temporal filter using interline charged coupled device  
An Interline charge coupled device is utilized to capture events during a short duration of time. The Interline charge coupled device is connected to a controller which causes charge to begin...
5822060 Method of detecting sample substances and fluorescence spectrometer using the method  
A method of detecting sample substances separated by an analytical separation technique, for example liquid chromatography or capillary electrophoresis, using electromagnetic radiation, and a...
5818056 Optically stimulated luminescence dosimetry in dental enamel  
A method and apparatus for determining radiation absorbed dose using optically stimulated luminescence (OSL) in dental enamel. The invention is based on the determination that OSL can be induced...
5818582 Apparatus and method for phase fluorometry  
A phase fluorometer employs a baseband frequency generator to generate a sample baseband signal at a first frequency fo and a reference signal correlated to the sample baseband signal. A second...
5813543 Method of sorting pieces of material  
A method of sequentially sorting pieces of material in real-time into output bins where each piece has a composition defined by a plurality of control elements. Each piece is analyzed to determine...
5815262 Apparatus for parallelized two-photon fluorescence correlation spectroscopy (TPA-FCS), and the use thereof for screening active compounds  
An apparatus for carrying out laser-induced two-photon fluorescence correlation spectroscopy (TPA-FCS), in which a plurality of volumes (6) are delimited or defined in the apparatus in such a way...
5811312 Optical measurement apparatus and method therefor  
An optical measurement apparatus includes a reaction vessel 2 which is formed in one body with a slab-type optical waveguide 1, and the apparatus adds fine-grains or water soluble dye for...
5801828 Apparatus and method for fluorescence spectroscopy of remote sample  
A fluorescence spectrometer (10) includes an excitation light source (12) and an excitation light input mirror (14) for reflecting excitation light produced by the light source and directing the...
5798832 Process and device for determining element compositions and concentrations  
The invention pertains to a process and a device for determining the composition and concentration of elements in material samples using laser-based plasma emission spectroscopy. The process...
5796478 Monitoring of film forming living desposits  
A method and apparatus for detecting, measuring and monitoring films formed on exposed surfaces of a fluid system caused by microorganisms present in the fluid system. Pursuant to the present...