Match Document Document Title
5322798 Method for carrying out surface plasmon resonance measurement and sensor for use in the method  
In a method for carrying out a surface plasmon resonance (SPR) measurement a beam of electromagnetic radiation is directed through a part transparent to it onto a surface of a material layer...
5317378 Enhancing emission of excited radiation in an analytical sample subjected to exciting radiation  
A spherical sample cell (FIG. 4A) bears an external inwardly specular laye defining a hollow imaging mirror 11D and an optical aperture 11E. The mirror acts as an integrator of both the exciting...
5315122 Apparatus and method for fluorescent lifetime measurement  
A flow cytometer measures fluorescence lifetimes by the phase shift of a reference signal and an emission from a fluorescent particle or cell in a flow chamber in order to identify the particle or...
5313264 Optical biosensor system  
An optical biosensor system using internal reflection versus angle of incidence determination for the detection of biomolecules, the system comprising a sensor unit (10) with at least two sensing...
5305759 Examined body interior information observing apparatus by using photo-pulses controlling gains for depths  
A photo-pulse from a photo-pulse generating apparatus is branched, where one branch is radiated to an examined body and the reflected light reflected within the examined body is delayed in time in...
5306385 Method for generating photoluminescence emission lines from transition element doped CAF2 thin films over a Si-based substrate  
A method and apparatus for producing photoluminescence emissions (68) from thin CaF2 films grown on either silicon or silicon/aluminum substrate shows narrow emission linewidth and high emission...
5304465 Enzyme assay method using surface plasmon resonance spectroscopy  
Method of performing enzyme assays using the technique of surface plasmon resonance spectrometry (SPRS). An SPRS surface carries an immobilized reagent which is capable of being released by an...
5303025 Emission spectrochemical quantitative analysis method and apparatus  
A quantitative analysis of the constituents in a specimen and being classified by the conditions of the constituents in the specimen, using a spectroscopic analysis is made by exciting the...
5303026 Apparatus and method for spectroscopic analysis of scattering media  
Apparatus and method for spectroscopic analysis of scattering media. Subtle differences in materials have been found to be detectable from plots of intensity as a function of wavelength of...
5296703 Scanning confocal microscope using fluorescence detection  
A scanning confocal microscopes scans a sample with an incident beam of ultraviolet radiation, in a raster scan pattern, causing the sample to fluoresce and emit visible radiation, a portion of...
5293213 Utilization of a modulated laser beam in heterodyne interferometry  
Two laser beams of different frequencies are combined to form a composite carrier beam of a frequency midway between those of the individual beams and modulated at the beat frequency between the...
5270788 Apparatus for measuring polarization of bathochromically shifted fluorescence  
An improved method and apparatus for measuring polarized fluorescence emissions compensates for background emissions without separating a fluorescing material from background material. The method...
5268304 Method of determining the concentration of a chemical of interest in a solution  
A method determines the concentration of a chemical of interest in a solution. A permeable membrane is placed in the solution and a ligand is exuded through the membrane to continually renew the...
5260029 Fluorescence detection of DNA bases  
To assure detection of fluorescence produced from continuously supplied fine particles such as DNA bases with accuracy and excellent efficiency, fine particles supplied from a flow cell are...
5260764 Optical particle analyzing apparatus having two types of light source  
An optical particle analyzing apparatus includes a flow cytometer in which laser light and lamp light having a wavelength shorter than that of the laser light are used simultaneously when...
5254207 Method of epitaxially growing semiconductor crystal using light as a detector  
Material and impurity gases are introduced into a crystal growth chamber to grow a crystal film on a GaAs substrate. A light beam emitted from a variable-wavelength light source is applied to the...
5252834 Pulsed and gated multi-mode microspectrophotometry device and method  
A short pulse of laser excitation and a synchronized gating time control of a fluorescence spectrograph detector are combined with a microscope, precise focusing and delivery optics, multi-mode...
5251008 Fourier transform spectroscopy and spectrometer  
A Fourier transform spectrometer for conducting Fourier transform spectroscopy. The spectrometer has a light source emitting light to a sample via a rapid scan interferometer. The transmittance of...
5243401 Fluorescent image densitometer of flying spot system  
A two-dimensional fluorescent densitometry for measuring a specimen plate having a specimen spot such as phospholipide two-dimensionally developed and fluorescent-labelled on a TLC plate. The...
5227308 Method for assessing lung maturity using fluorescence from naphthalene-based probes  
A method for assessing lung maturity in a fetus or an infant comprises adding a fluorescent dye to a pulmonary effluent, causing the dye to fluoresce by illumination with an excitation wavelength...
5216482 Apparatus for emission spectrochemical analysis  
Apparatus for emission spectrochemical analysis of a sample containing elements to be analyzed, wherein the sample is cyclically excited with relatively high energy to vaporize the sample elements...
5212386 High speed cross-correlation frequency domain fluorometry-phosphorimetry  
Apparatus for cross-correlation frequency domain fluorometry and/or phosphorimetry in which means are provided for sequentially performing runs of the cross correlation frequency domain...
5212538 Fluorescence measurement apparatus with an automatic recorder full-scale setting function  
A fluorescence measurement apparatus for automatically setting the full scale of the recorder in recording the spectrum curve of the fluorescence measurement. The controller of the fluorescence...
5208649 Assembly for front face testing  
A coverslip holder assembly for a front face fluorimetry flow cell has a holder body and a hingedly attached clamp for releasably maintaining a coverslip adjacent the front face of the holder body...
5206176 Detection and control of aromatic compounds in combustion effluent  
Detecting the presence of PAC's in the effluent of a combustions system by detecting the presence of a high molecular weight PAC's having five or more rings. A position along the effluent stream...
RE34214 Method and apparatus for microphotometering microscope specimens  
A method of microphotometering individual volume elements of a microscope specimen 10, comprising generating a luminous dot or cursor and progressively illuminating a plurality of part elements in...
5198871 Laser-induced-fluorescence inspection of jet fuels  
An optical inspection system for using laser-induced luminescence to detect the quality of materials, such as fuel. The inspection system comprises an excitation means for illuminating a specimen...
5196709 Fluorometry method and apparatus using a semiconductor laser diode as a light source  
A method and apparatus for detecting the change in phase angle and/or modulation of emitted fluorescence of a fluorophore excited by modulated light from a laser diode. The light is both...
5194916 Fluorescence spectrophotometer  
The fluorescence spectrophotometer automatically sets the response time at the most suitable value for every sample, thus accurate quantitative measurements can be made with minimum measuring...
5194915 Photometric apparatus and process  
A photometric apparatus is provided for analyzing a sample liquid capable of fluorescing when exposed to excitation light. The sample liquid, surrounded by a sheath liquid under conditions of...
5192980 Apparatus and method for method for spatially- and spectrally-resolved measurements  
A scanning optical microscope or mapping system for spectrally-resolved measurement of light reflected, emitted or scatttered from a specimen is disclosed, in which the spectrally-resolving...
5190857 Optical method for measuring an analyte using area-modulated luminescence  
A luminescence measuring system is provided for detecting luminescence at extremely low concentrations of luminescing moieties. The method employs alternating radiation at a plurality of loci of...
5185131 Lasing dye sensor for chemical vapors  
In an external lasing dye sensor system, a stream of lasing dye free-flows cross an open area inside a chamber. An air sample comprising chemical vapor contaminants is pumped or drawn into the...
5178836 Analytical method for particulate substances, relevant analytical equipment and its application system  
This invention relates to an analytical method and a relevant equipment for particulate substances in a sample with the detection of acoustic waves generated in the sample with the irradiation of...
5166743 Assembly for converting a spectrophotometer to a fluorometer  
A conversion assembly for converting a spectrophotometer to a fluorometer which utilizes the light source and light detector of the spectrophotometer. The assembly has a conversion adaptor which...
5166052 Method for measuring polarization of bathochromically shifted fluorescence  
An improved method for measuring polarized fluorescence emissions compensates for background emissions without separating a fluorescing material from background material contributing background...
5155047 Method and apparatus for measuring and controlling efficiency of a combustion  
A method and an apparatus for measuring and controlling the efficiency of a combustion whereby, ash samples are drawn at predetermined time intervals from a region of a combustion plant, each...
5153665 Vaporizing particle velocimeter  
A velocimeter measures flow characteristics of a flow travelling through a chamber in a given direction. Tracer particles are entrained in the flow and a source of radiant energy produces an...
5148031 Device for obtaining spatial and time characteristics of a weak optical radiation from an object  
A device for obtaining spatial and time characteristics of a weak optical radiation from an object comprises an optical pulsed radiator for irradiating the test object, a photoelectronic...
5142462 Illuminating optical system  
The illuminating optical system comprises a light source for emitting a light beam having an elongated sectional shape in parallel with the optical axis thereof, and a condenser lens for focusing...
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...
5128882 Device for measuring reflectance and fluorescence of in-situ soil  
A method and apparatus for real time, on-site detection and analysis of caminant in soil, the invention continuously measures and records specific spectral properties of potentially contaminated...
5128019 Device for measuring chemical and physical parameters of a liquid or gaseous medium  
In order to reduce the measuring volume in a device for measuring chemical and physical parameters of liquid or gaseous media by means of optical sensor elements whose optodes may be replaced...
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...
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...
5110204 Velocity measurement by the vibrational tagging of diatomic molecules  
First and second relatively high power laser beams are directed into a volume enclosing a flow field of molecules of a molecular species. The beams are focussed to form an overlapping region of...
5108179 System and method for determining changes in fluorescence of stained nucleic acid in electrophoretically separated bands  
The use of continuous wave (CW) laser excitation to measure small differences in the fluorescence of bands of fluorophore stained nucleic acid fragments present in gels is described.
5108932 Process for the quantitative determination of at least one parameter of a liquid or gaseous sample  
For the simultaneous measurement of two parameters of a liquid or gaseous sample, in a fluorescence measuring device in which the influence of the aging processes of the indicator substance and...
5096293 Differential fluorescence lidar and associated detection method  
The multichannel fluorescence lidar comprises a source for the emission of a laser beam, an optical receiving system to focus the backscattered radiation, an optical channels separator and means...
5094531 Spectrophotometer to fluorometer converter  
A converter for using a spectrophotometer as a fluorometer includes a barrier for blocking the light in a collimated beam from reaching the detector of the spectrophotometer after this light has...