Matches 201 - 250 out of 362 < 1 2 3 4 5 6 7 8 >
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5127730 Multi-color laser scanning confocal imaging system  
A true multi-color laser scanning confocal imaging system for use with a microscope is described in which a single laser having a multi-line output is used to simultaneously or individually excite...
5123731 Particle measuring device  
A particle measuring device having a light source for irradiating particles to be examined, light wavelength convertor provided in the optical path of the a light source and at least emitting a...
5118608 Optical assay technique  
An assay technique for qualitative and quantitative detection of a chemical, biochemical or biological detection of a chemical, biochemical or biological species in sample. The technique comprises:...
5117466 Integrated fluorescence analysis system  
An integrated fluorescence analysis system enables a component part of a sample to be virtually sorted within a sample volume after a spectrum of the component part has been identified from a...
5115137 Diagnosis by means of fluorescent light emission from tissue  
A sample (1) is irradiated by a pulse from a laser (2), creating fluorescence radiation, which is brought, in imaging relation or otherwise, to a detector (6) sensing from the same sample (1) in a...
5097135 Method of forming a two-dimensional distribution image of ion concentration in a cell  
This invention relates to a method of forming a two-dimensional concentration distribution image of specific ions to be assayed in a living cell, on the basis of the variation in fluorescent...
5091652 Laser excited confocal microscope fluorescence scanner and method  
A fluorescent scanner for scanning the fluorescence from a fluorescence labeled separated sample on a sample carrier including a confocal microscope for illuminating a predetermined volume of the...
5089384 Method and apparatus for selective cell destruction using amplified immunofluorescence  
A method and apparatus for altering pathogenic microorganisms and viruses in a bodily fluid. The microorganisms or viruses to be altered are tagged by immunofluorescent antibodies and placed in an...
5075556 Acridine orange derivatives and their use in the quantitation of reticulocytes in whole blood  
Quaternized derivatives of acridine orange and reagents incorporating such derivatives and their use in quantitatively determining reticulocyte levels in whole blood specimen by fluorescence flow...
5061857 Waveguide-binding sensor for use with assays  
An optical waveguide-binding sensor which increases sensor sensitivity to fluorescence detection during assays of liquids based on adjustments in the V number along the optical waveguide. The...
5061075 Optical method and apparatus for diagnosing human spermatozoa  
The sperm count of a specimen of sperm is measured by exciting the specimen with a beam of substantially monochromatic light, then measuring the intensity of the intrinsic native fluorescence...
5050987 Particle analyzing apparatus and method for determining nuclear shift index  
A particle suspension is irradiated with a laser beam, and scattered light from a single particle irradiated in an irradiating zone is detected as a plurality of particle signals. The laser beam in...
5032730 Immunoassay apparatus  
In an immunoassay apparatus, a washing liquid containing a substrate is applied to a labeled antigen or a labeled antibody. The fluorescent substance formed from the substrate is exposed to...
5017497 Particle discriminator and method  
Method and apparatus for analyzing particles based on different depolarizing structure associated with the different particle types. Cells in a flow cytometer are illuminated with a linearly...
5014707 Apparatus for measuring and evaluating the inherent fluorescent spectra of organic tissue surfaces  
The invention relates to a modified microscope-photometer which makes it possible to record and evaluate inherent fluorescent spectra of organic tissue surfaces. The modified microscope-photometer...
5014225 Apparatus and method for determining plant fluorescence  
An apparatus and method for determining the photosynthetic activity of a plant by determining the chlorophyll fluorescence of the plant is provided. The apparatus includes a light impermeable...
4977325 Optical read system and immunoassay method  
A low cost optical system which incorporates a low ultraviolet output tungsten halogen light source and solid state photodetectors and circuitry in such a way as to provide reliable fluorometric...
4973848 Laser apparatus for concurrent analysis and treatment  
The present invention discloses an apparatus in which two laser beams are concurrently scanned across a region of tissue to be treated by laser therapy. A first "analysis" beam is used to excite...
4957870 Detection of Reticulocytes, RNA and DNA  
Reticulocytes, RNA or DNA are stained with a dye for detection in a flow cytometer. The dye has the formula: ##STR1## Wherein X=O, S, se or C(CH 3 ) 2 ; R 1 =alkyl having from 1-6 carbons; ...
4954715 Method and apparatus for an optimized multiparameter flow-through particle and cell analyzer  
The invention discloses a method, device, and apparatus of very high reliability and stability for the multiparameter analysis of particles and cells in suspension. The very high reliability and...
4945250 Optical read head for immunoassay instrument  
A low cost optical system which incorporates a low ultraviolet output tungsten halogen light source and solid state photodetectors and circuitry in such a way as to provide reliable fluorometric...
4945245 Evanescent wave background fluorescence/absorbance detection  
It is proposed to increase the utility of intracellular fluorescence and absorbance measurements for control of fermentation and cell culture by correcting on-line for background fluorescence of...
4942303 Computer controlled fluorometer device and method of operating same  
A computer controlled fluorometer device and method of operating same, said device being made to include a pump flash source and a probe flash source and one or more sample chambers in combination...
4933293 Method of classifying leukocytes by flow cytometry and reagents used in the method  
A method for classifying leukocytes with a flow cytometer by means of optical measurements on fluorochrome-stained blood cells is useful in the practice of clinical testing.
4908112 Silicon semiconductor wafer for analyzing micronic biological samples  
An analytical separation device in which a capillary sized conduit is formed by a channel in a semiconductor device and the channel is closed by a glass plate. Electrodes are positioned in the...
4900933 Excitation and detection apparatus for remote sensor connected by optical fiber  
Sensing apparatus for remote sensing of quantities such as blood oxygen concentration using a phosphorescent material located at one end of an optical fiber. The phosphorescent material emits a...
4900934 Apparatus for simultaneous visualization and measurement of fluorescence from fluorescent dye-treated cell preparations and solutions  
An apparatus for measuring multiple wavelengths of fluorescence emitted from fluorescent dye-treated cells, tissue preparations, or solutions which is comprised of a custom designed optical module...
4896961 Particle analyzing apparatus  
A particle analyzing apparatus has an irradiating optical system for irradiating a particle to be examined with a light beam, a measuring optical system for measuring the light scattered by the...
4894547 Optical method and apparatus for detecting and measuring aging, photoaging, dermal disease and pigmentation in skin  
A method and apparatus for inducing fluorescence in human skin, in vivo, and for evaluating certain skin characteristics from the spectral intensity of induced fluorescence. The energy of a...
4889690 Sensor for measuring physical parameters of concentration of particles  
A sensing arrangement for measuring physical parameters or concentration of particles is assembled of a laminar source of luminescent radiation. Fluorescent indicating particles are arranged in an...
4882288 Assay technique and equipment  
An assay technique for the qualitative and/or quantitative detection of a chemical, biochemical or biological species in a sample comprising (a) coating at least a predetermined part of a...
4882284 Method for quantitating and differentiating white blood cells  
A method is provided for discriminating white blood cells from red blood cells and platelets in an unlysed, whole blood sample. The white blood cells may be discriminated into five subpopulations:...
4877966 Method and apparatus for the measurement of low-level laser-induced fluorescence  
A method and apparatus for measuring low-level laser-induced fluorescence are disclosed. A laser is used to produce a coherent beam of light which is sequentially passed through a beam expander,...
4877583 Fluorescent analyzer  
A fluorescent analyzer including a light source which irradiates a sample with direct light, a first wave selector for passing a predetermined wavelength of light emitted from the light source, a...
4866283 Optical inspection of food products  
An optical inspection system for using laser-induced luminescence to detect the quality of organic materials, such as peanuts. The inspection system comprises an excitation means for illuminating a...
4863264 Photoanalysis apparatus with means for correcting flow rate of fluid carrying particles and/or position of applied light beam for examination and photoanalysis method therefor  
A photoanalysis apparatus includes marker pouring device for pouring markers into one of sheath fluid and fluid carrying particles in a flow-cell device, second optical device for applying a light...
4852579 Photocharacterization and treatment of normal abnormal and ectopic endometrium  
A method and apparatus for optical diagnosis and treatment of abnormal cells through the use of hormone-specific chemical markers which are preferential to genital tissues. Abnormal cells can be...
4848349 Substance and method for measuring hepatic blood flow  
The invention discloses a new class of compounds, namely fluorescently labelled bile acids, as well as processes for their production. These compounds may be used for diagonistic and research...
4848362 Apparatus and method for diathermy treatment and control  
A method for therapeutic deep heating of musculoskeletal tissues with an improved transducer that serves simultaneously to couple the power from the generator into the patient and to sense the...
4849362 Fluorescent intracellular calcium indicators  
Invented are new tetracarboxylate compounds which are chelators for calcium ions. Also invented is a useful method of measuring intracellular calcium concentrations using these novel compounds as...
4833332 Scanning fluorescent detection system  
A system for detecting the radiant energy emitted from different closely spaced species includes two detectors each having a large entrance angle for receiving the radiant energy, and wavelength...
4803365 Optical probe mounting device  
An optical probe mounting device for the insertion end of a fluorescence measuring optical probe which facilitates mounting on a biological reactor vessel window fitting. The device consists of a...
4799756 Remote multi-position information gathering system and method  
A technique for gathering specific information from various remote locations, especially fluorimetric information characteristic of particular materials at the various locations is disclosed...
4791310 Fluorescence microscopy  
A multi-chronal fluorescence imaging technique for spatial differentiation and correlation of a plurality of separate sample components tagged with site specific dyes is described. The dyes have...
4786813 Fluorescence imaging system  
A fluorescence imaging system. A light source irradiates an object to be viewed. The irradiated object is imaged through a beam-splitting system to form individual displaced images of the object....
4778593 Method and apparatus for discriminating minute particles  
In order to discriminate minute particles such as biological particles or organic polymers, a suspension of minute particles is formed into a particle stream with the individual particles...
4773097 Image analyzing apparatus  
An image analyzing apparatus comprising a source of light for radiating a target object of interest, a measuring light of a first predetermined wavelength and at least one detecting light of a...
4768513 Method and device for measuring and processing light  
A method and device for measuring and processing light whereby laser light is irradiated onto positions of an organism which has been injected with a fluorescent substance having a strong affinity...
4767206 Calibration method for flow cytometry using fluorescent microbeads and synthesis thereof  
A method of calibrating a flow cytometer is based on a set of highly uniform microbeads associated with a fluorescent dye in such a way that the microbeads have the same excitation and emission...
4755684 Method for tumor diagnosis and arrangement for implementing this method  
In contrast to relatively expensive known methods for tumor diagnosis by means of serum tests, the serum to be investigated (or its albumin or globulin subfraction) are excited by an excitation...
Matches 201 - 250 out of 362 < 1 2 3 4 5 6 7 8 >