| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250573000 | Fluent material in optical path | 76 |
| 20080283781 | Monitoring and Control System for Blood Processing - The invention relates to an optical cell for a separation chamber of a density centrifuge blood processing system for separating fluid components comprising an extraction chamber having a first external optical surface for transmitting at least a portion of an incident optical beam; and an extraction port having an axial bore for passing fluid components and a first external optical surface for transmitting at least a portion of the incident optical beam; wherein said first external optical surface of said extraction chamber and said first external optical surface of said extraction port are both positioned within the depth of field of a light collection element. | 11-20-2008 |
| 20080283782 | Camera arrangement for a motor vehicle - A camera arrangement includes a camera, a light source, and a light-guide which are in an inside region separated from an outside region by a window. The camera and the light source are pointed at the window. The light-guide is between the camera and the window and between the light source and the window. The light-guide couples light incident to the window from the outside region towards a portion of the camera. The light-guide couples light from the light source into the window which is reflected at the interface between the window and the outside region and couples the reflected light towards another portion of the camera. The camera records an image indicative of the incident light from the outside region through the light-guide and records an intensity of the reflected light from the light source through the light-guide. | 11-20-2008 |
| 20090001298 | Photoelectric Sensor and Emitting Device For Photoelectric Sensor - A purpose of the present invention is to provide a photoelectric sensor and an emitting device for a photoelectric sensor which can improve resistance to liquids. A purpose of the present invention is also to provide a photoelectric sensor and an emitting device for a photoelectric sensor which can improve productivity. | 01-01-2009 |
| 20090014670 | OPTICAL CAVITY SYSTEM HAVING AN ORTHOGONAL INPUT - An optical system having a closed loop light path with a source for providing light in a direction parallel to the normal of an input to the light path. The light may be provided via a diffracting mechanism to the input. The system may be a cavity ring-down sensor or some other optical device. The light path may be formed in a laser gyroscope type cavity. A light source may have a beam aligned to a spot, indicator or mark near the input of the cavity. The location of the spot, indicator or mark may be determined in accordance with parameters of the diffracting mechanism and/or cavity. A fixture for holding the light source may be secured so that placement of the source in the fixture will automatically result in an aligned light source. Then the diffracting mechanism may be inserted to further complete fabrication of the optical system. | 01-15-2009 |
| 20090121165 | DEVICE AND A METHOD FOR GENERATING DATA RELATING TO PARTICLES IN A PARTICULATE MATERIAL - In the field of multi-phase flows there is a need for a device and a method, for generating data relating to particles in a particulate material suspended in a fluid medium flowing within a pipe in a given direction, which provides more accurate data about the particles than conventional direct imaging techniques. A device ( | 05-14-2009 |
| 20090206285 | DEVICE FOR ANALYSING COMPOSITION OF CONTENTS OF A CONTAINER BY MEASURING ABSORPTION - The invention relates to a device for analysing the composition of the contents of a container, characterised in that it comprises spectral analysis means of the contents of the container for measuring the absorption of waves by the container and its contents, and means ( | 08-20-2009 |
| 20100163761 | APPARATUS AND METHOD FOR ENVIRONMENTAL MONITORING - Apparatus ( | 07-01-2010 |
| 20100187450 | MICROELECTRONIC SENSOR DEVICE WITH LIGHT SOURCE AND LIGHT DETECTOR - The invention relates to a method and a microelectronic sensor device for making optical examinations in an investigation region ( | 07-29-2010 |
| 20110140012 | DUST CONTROL AND FLOW CONTROL TESTING DEVICE AND METHOD OF REDUCING AIRBORNE DUST AND INCREASING FLOW OF BULK MATERIALS - A method for determining quantity and/or a type of dust control agent for controlling dust of a bulk material or flowability thereof comprises dispensing a bulk material into an agitator and agitating the bulk material in the agitator to create airborne dust from the bulk material. A test method for determining a quantity and/or a type of dust control agent effective for reducing a quantity of airborne dust that separates from a bulk material during handling comprises: 1) dispensing a dust-containing bulk material into an agitator; 2) agitating the bulk material in the agitator to a degree sufficient to produce airborne dust from the bulk material; and 3) measuring a quantity of airborne dust produced from the bulk material; repeating steps 1), 2) and 3) after applying a particular dust control agent to said bulk material; and comparing the quantity of airborne dust that separates from the bulk material with and without the dust control agent. The dust control and/or flow control agents described herein also eliminate or minimize pluggage of the testing apparatus. In a preferred embodiment, an airborne dust concentration monitor is also used to measure the airborne dust concentration of the bulk material. Also disclosed is a method for determining a quantity and/or a type of flow control agent for increasing flow of a bulk material comprising: 1) dispensing a known quantity of a bulk material into a hopper disposed above a downwardly inclined vibrating ramp; 2) measuring the time required for said known quantity of said bulk material to traverse the vibrating ramp; 3) repeating steps 1) and 2) after applying a quantity of a particular flow control agent to said bulk material; 4) comparing the times from steps 2) and 3) to determine if the quantity and type of flow control agent has increased the flow rate of said bulk material; 5) and optionally repeating steps 2), 3), and 4) using a different quantity or type of flow control agent to find a quantity or type of flow control agent that further increases the flow rate of said bulk material. | 06-16-2011 |
| 20110220818 | METHOD AND APPARATUS FOR RAPID FILTER ANALYSIS OF FLUID SAMPLES - An apparatus ( | 09-15-2011 |
| 20110303859 | Generating Pulse Parameters in a Particle Analyzer - A method is provided for generating measurement parameters for a particle sample in a particle analyzer. The method includes, interrogating the particle sample with a triggering interrogator and one or more secondary interrogators respectively positioned along a length of an interrogation area, generating respective pulses based upon the interrogation of a first particle from the particle sample, determining a primary pulse detection window based upon a triggering pulse, determining a search interval to find a secondary pulse based upon factors including the primary pulse detection window and a laser delay, adjusting the search interval for laser delay variation dynamically based on the interrogation of the first particle, identifying the secondary pulse in the adjusted search interval, and processing the secondary pulse to determine a peak value of the secondary pulse. Corresponding apparatus are also provided. | 12-15-2011 |
| 20120080620 | METHOD AND DEVICE FOR DETECTING METALS IN A FLUID - A method detects metallic atoms in a fluid. The method includes: placing, in a zone sheltered from light, a photodiode comprising a photosensitive surface in contact with a fluid to analyze; heating the photosensitive surface of the photodiode to a temperature sufficient to allow metallic atoms deposited on the photosensitive surface to migrate through this surface; acquiring a signal relative to the lighting of the photodiode; and determining, from the acquired signal, a measurement representative of a contamination status by metallic atoms of the photodiode. | 04-05-2012 |
| 20120193555 | MULTI-STREAM HIGH-PRESSURE LIQUID CHROMATOGRAPHY MODULE - An HPLC module utilizes a combination of compound-dedicated hardware providing line clearance between differing radiosynthesis and includes multiple compound-dedicated HPLC inject valves, each inject valve directing a fluid to a serially-connected HPLC column and UV flowcell so as to prevent cross-contamination between differing radiopharmaceutical syntheses. The module provides a disposable fluid path from each UV flowcell allowing for radioactive detection, fraction collection, formulation and final product dispensing. In this manner, a level of GMP compliance is achieved that is suitable for meeting the requirements of an MHRA approved site-license. | 08-02-2012 |
| 20120248347 | CONFOCAL OPTICAL DETECTOR, DETECTOR ARRAY, AND MANUFACTURING METHOD THEREOF - A confocal optical detector including a light source generating a first optical beam along an axis; an optoelectronic sensor; an optical focusing device, which receives and focuses the first optical beam; and a hole, which receives the first optical beam and is arranged between the optoelectronic sensor and the optical focusing device. The optoelectronic sensor is arranged between the light source and the hole. In addition, the optoelectronic sensor and the optical focusing device are aligned along the axis. | 10-04-2012 |
| 20130112900 | CLEANING APPARATUS, MEASUREMENT METHOD AND CALIBRATION METHOD - A calibration method for calibrating a measurement device for measuring a concentration of a gas dissolved in a liquid includes varying the concentration of the gas dissolved in the liquid, and predetermining, as a reference concentration, a concentration of the gas at which an intensity of luminescence produced when the liquid is irradiated with ultrasonic waves shows a peak. The liquid is illuminated with ultrasonic waves while varying the concentration of the gas in the liquid and a measured value is measured, using the measurement device, as a concentration of the gas in the liquid when the intensity of the luminescence shows a peak. The measurement device is calibrated based on the measured value and the reference concentration. | 05-09-2013 |
| 20130207007 | OPTICAL ANALYSIS METHOD USING THE DETECTION OF A SINGLE LIGHT-EMITTING PARTICLE - There is provided a method of avoiding deterioration of the accuracy in the number of detected light-emitting particles due to that two or more light-emitting particles are encompassed at a time in the light detection region in the scanning molecule counting method using an optical measurement with a confocal microscope or a multiphoton microscope. In the inventive optical analysis technique, in the detection of an individual signal indicating light of a light-emitting particle by selectively detecting a signal having an intensity beyond a threshold value as a signal indicating light of a light-emitting particle in light intensity data produced through measuring light intensity during moving the position of a light detection region in a sample solution, the threshold value is set so that a signal indicating light from a light-emitting particle encompassed in a region narrower than the light detection region will be detected selectively. | 08-15-2013 |
| 20130234053 | DIAGNOSTIC INSTRUMENT AND FLOW PROCESS - A diagnostic instrument is disclosed. The diagnostic instrument may have a highly efficient probe washer station and/or may be able to sense whether there is a tube septum on a specimen tube to be sampled. The instrument may also be able to determine where the bottom of the tube is located. The probe washer station may have a flow of saline that is used to wash both the internal cavity and the external circumference of the probe. | 09-12-2013 |
| 20140034854 | Microphotometer - A photometer has a light source, a sensor, a liquid-core light guide which defines an optical path between the light source and the sensor and through which a liquid to be analyzed can be guided, and at least one port for the liquid. The port for the liquid to be analyzed runs through the light source. | 02-06-2014 |
| 20140166910 | ARRANGEMENT FOR OPTICAL MEASURING OF ONE OR MORE PHYSICAL, CHEMICAL AND/OR BIOLOGICAL, PROCESS VARIABLES OF A MEDIUM - An arrangement for measuring process variables of a medium. The arrangement includes a housing embodied for accommodating a measuring apparatus for determining the physical and/or chemical process variable(s), wherein arranged in the housing is at least one window and at least the window contacts the medium, and wherein an oscillatory transducer is provided for transmitting sound waves, characterized in that the window is connected rigidly with the housing, the oscillatory transducer is arranged in a peripheral module having a module housing. The peripheral module is so arranged that the oscillatory transducer transmits the sound waves toward the window, wherein the sound waves pass through the module housing at an exit area, and the peripheral module is so arranged that medium is located in the region of the window and exit area. | 06-19-2014 |
| 20140175309 | DEVICE, APPARATUS AND METHOD | 06-26-2014 |
| 20140183380 | MEASURING UNIT AND GAS ANALYZING APPARATUS - A measurement unit used in an analyzing apparatus for measuring concentrations of component gases in a sample gas comprises a light emitting unit configured to emit a measurement light to the sample gas, a light receiving unit configured to receive the measurement light on a light receiving plane, a purge air introducing unit configured to introduce a purge air into a vicinity of at least one of the light emitting unit and the light receiving unit, and a condensing lens arranged in an optical path of the measurement light from the light emitting unit to the light receiving unit, the condensing lens being configured to condense the measurement light within the light receiving plane of the light receiving unit, a propagation path of the measurement light being varied by a thermal lens effect caused by a temperature difference between the sample gas and the purge air. | 07-03-2014 |
| 20140252251 | Systems and Methods for Inspecting and Monitoring a Pipeline - An example method includes introducing a movable inline inspection device into a pipeline, the movable inline inspection device having a housing that defines a conduit therein which provides fluid communication through the movable inline inspection device in the form of a bypass fluid, the conduit having one or more optical computing devices arranged thereon for monitoring the bypass fluid, wherein each optical computing device has at least one integrated computational element arranged therein, generating an output signal corresponding to a characteristic of the bypass fluid with at least one detector arranged within each optical computing device, receiving the output signal from each optical computing device with a signal processor communicably coupled to the at least one detector of each optical computing device, and determining with the signal processor the characteristic of the bypass fluid detected by each optical computing device. | 09-11-2014 |
| 20140339444 | OPTICAL ANALYSIS DEVICE, OPTICAL ANALYSIS METHOD AND COMPUTER PROGRAM FOR OPTICAL ANALYSIS USING SINGLE PARTICLE DETECTION - In the optical analysis technique of detecting an existence of a single particle is a sample solution with a confocal microscope or a multiphoton microscope according to the scanning molecule counting method of the present invention, the position of a light detection region is moved in the sample solution; the light intensity from the light detection region is measured so that light intensity data will be generated; a first occurrence probability in assuming a first condition that no single particles exist in the light detection region and a second occurrence probability in assuming a second condition that a single particle exists in the light detection region for a time variation of light intensity value on the light intensity data are computed; and a signal indicating each single particle is detected based on those occurrence probabilities, and thereby enabling improvements in the sensitivity and/or S/N ratio. | 11-20-2014 |
| 20150378316 | MICROFABRICATED ATOMIC CLOCKS (MFAC) & MAGNETOMETERS (MFAM): HIGHSENSITIVITY VAPOR CELL STRUCTURE WITH INTERNAL CONDENSATION SITE - A microfabricated atomic clock (mfac) or magnetometer (mfam) vapor cell utilizing a method of forming a self-condensing silicon vapor cell cavity structure for the atomic clock or magnetometer. | 12-31-2015 |
| 20160041094 | LENS-FREE IMAGING SYSTEM AND METHOD FOR DETECTING PARTICLES IN SAMPLE DEPOSITED ON IMAGE SENSOR - A lens-free imaging system for detecting particles in a sample deposited on image sensor includes a fluidic chamber for holding a sample and an image sensor for imaging the sample, wherein the image sensor has a light receiving surface and a plurality of photosensitive pixels disposed underneath the light receiving surface, and wherein the fluidic chamber formed at least in part by the light receiving surface. A method for detecting particles of interest in a sample deposited on an image sensor, through lens-free imaging using the image sensor, includes (ii) generating an image of the sample, deposited on a light receiving surface of the image sensor, by illuminating the sample, and (ii) detecting the particles of interest in the image. | 02-11-2016 |
| 20160041359 | Alignment Device and Transmitter/Receiver System with Two Angular Degrees of Freedom - An alignment device, having two angular degrees of freedom is provided. The alignment device is adjustable such that it is suitable for aligning a first apparatus with respect to a second apparatus. The first apparatus may emit one or more of electromagnetic waves, acoustic waves and matter towards the second apparatus and for detection by the second apparatus. The first and second apparatuses may be disposed in a harsh environment such as is found in the vicinity of an industrial process stack. In some embodiments the first apparatus is a laser, preferably a tunable diode laser, and the second apparatus is a receiver incorporating a detector. In these embodiments the apparatuses may be used to perform laser absorption spectroscopy on a process gas flowing through an industrial process stack. | 02-11-2016 |
| 20160061704 | Raw Material Fluid Density Detector - This invention is related to an optical-analysis-type raw material fluid density detector including a detector main body and a light oscillation unit and a light detection unit that are provided on the upper surface or the under surface of the detector main body, in which the detector main body has at least one recess formed in the upper surface and the under surface, a fluid flow path connecting a fluid inlet of the detector main body to the recess, a fluid flow path connecting the recesses to each other, and a fluid flow path connecting the recess to a fluid outlet of the detector main body; the light oscillation unit is disposed in the recess that is closest to the inlet; and light detection units are disposed in the remaining recesses. | 03-03-2016 |
| 20160077002 | Reflective material sensor - Described herein is a sensor for sensing reflective material. The sensor includes a housing with a transparent window and a sensor mount located in the housing and angled away from a housing wall. A radiation emitter is mounted in the sensor mount and emits radiation along an axis through the transparent window which has an amount of the reflective material located thereon. A radiation detector is mounted in the sensor mount and located adjacent the radiation emitter. The radiation detector is located to receive reflected radiation from the reflective material along another axis. The first axis is angled towards the second axis. | 03-17-2016 |
| 20160161419 | APPARATUS AND METHOD FOR MONITORING MELT STREAM WITHIN A FIBERIZING APPARATUS - This invention addresses technical problem of optimizing output of a melt cascade, which is used in production of mineral fiber (so called mineral wool as known in state of the art being stone wool, slag wool or other type of mineral wool). These technical problems are solved by steps of determining (a) trajectory of movement of a melt stream, (b) melt concentration relative to surrounding air between the first and the second rotating wheels, and (c) movement vector, and further by regulating of movement of melt stream (i.e., drop mass), said regulation mostly achieved through variation in point of contact of melt and rotating wheel or plurality thereof. This is achieved by determining three key parameters: (a) trajectory of movement of melt stream, (b) melt concentration relative to surrounding air between the first and the second rotating wheels, and (c) movement vector, and further by analyzing these three key. | 06-09-2016 |
| 20160202508 | Method of Obtaining or Maintaining Optical Transmittance into Deaerated Liquid | 07-14-2016 |
| 250574000 | Scattered or reflected light | 10 |
| 20090218526 | SCATTERING CENTRE DETECTOR ASSEMBLY AND METHOD - An assembly which comprises (a) a duct ( | 09-03-2009 |
| 20100051836 | Apparatus and method of obtaining depth image - An apparatus for obtaining a depth image. A first ray emission unit emits a first emission ray, a second ray emission unit emits a second emission ray, a receiving unit receives a first reflection ray associated with the first emission ray and a second reflection ray associated with the second emission ray, and a processing unit calculates a depth value corresponding to a first pixel, based on an electric charge provided from the first pixel of the receiving unit. | 03-04-2010 |
| 20110031419 | SMOKE SENSOR - A current-voltage converting circuit ( | 02-10-2011 |
| 20110108748 | EVALUATION OF A DIFFERENCE SIGNAL BETWEEN OUTPUT SIGNALS OF TWO RECEIVING DEVICES IN A SENSOR APPARATUS - A sensor apparatus for optically detecting an object includes (a) a first emitting device, configured to emit a first emission beam, (b) a first receiving device, configured to receive a first reception beam, (c) a second receiving device, configured to receive a second reception beam, and (d) an evaluation unit connected downstream of the first receiving device and the second receiving device. The first reception beam and/or the second reception beam contains scattered light which is produced when an at least partial scattering of the first transmission beam occurs at the object. The evaluation unit is coupled to the first receiving device and the second receiving device so as to receive a difference signal between a first output signal of the first receiving device and a second output signal of the second receiving device. The sensor apparatus may be incorporated in a proximity sensor and a danger warning system. | 05-12-2011 |
| 20120001099 | Optical sensor for use in a domestic washing machine or dishwasher - An optical sensor for use in a washing machine or dishwasher comprises a housing, a light-emitting element, a light-receiving element and a light-conducting structure, which is made from a transparent material, having a light entry point, a first reflection surface, a second reflection surface and a light exit point. The light-emitting element, the light-receiving element and the light-conducting structure define a light measurement path that runs, in this sequence, from the light-emitting element, via the light entry point, the first reflection surface, the second reflection surface and the light exit point, to the light-receiving element. In this case, on a section located between the first and the second reflection surface, the light measurement path runs outside the housing. The light that reaches the light-receiving element, along the light measurement path, from the light-emitting element undergoes total reflection on the first reflection surface and on the second reflection surface. According to an aspect of the invention, at each point on the section of the light measurement path that runs outside the housing, a light beam that runs from the first reflection surface to the second reflection surface has a cross-sectional area of not less than 0.9 mm | 01-05-2012 |
| 20120211679 | CYTOMETRY SYSTEM WITH SOLID NUMERICAL-APERTURE-INCREASING LENS - A flow cytometry system includes a flow element through which a cell is transported in a flowing fluid. The flow element includes a bore bounded by a wall. A light source is configured to illuminate the cell. An optical system receives light emanating from the cell and directs at least some of the received light to a light sensor. The optical system includes a numerical-aperture-increasing lens at a wall of the flow element. At least some of the received light passes through the numerical-aperture-increasing lens. The flow cytometry system may also include a beam splitter that directs two wavelength bands of the emanating light such that light in two wavelength band preferentially reach different sensing locations via different paths. The system may also include an optical element placed in one of the paths, shifting a focal location of the affected path to compensate for chromatic aberration of the numerical-aperture-increasing lens. | 08-23-2012 |
| 20130292587 | APPARATUS AND METHOD FOR THE AUTOMATED DETECTION OF PHASES FOR AUTOMATED ANALYSIS - An apparatus and a method are provided for the detection of the level of the different phases present in at least one tube or vessel intended for filling the different wells of a microplate-format container for an automated analysis system. The apparatus is equipped with a fixing portion arranged to allow it to be itself held and/or handled instead of a microplate-format container, and carries out this detection by measuring the variation in wavelength of light reflected on a point zone of the content of the tube, during a displacement of the tube along an optical reader or of the optical reader along the tube in a rectilinear movement in a known manner. | 11-07-2013 |
| 20140264096 | MULTI-AXIS OPTICAL MEASUREMENT OF FLUID STREAMS WITH SONIC CLEANING AND HOMOGENIZATION - The present application is directed to methods and apparatus for multi-axis optical measurements of a fluid stream flowing or contained in an optically transparent measurement chamber. Sonic energy is directed into the fluid in the measurement chamber to clean interior surfaces of the measurement chamber and promote homogenization of the fluid. Optical measurements may be taken of the fluid. | 09-18-2014 |
| 20140339445 | MICRO-LENS SYSTEMS FOR PARTICLE PROCESSING SYSTEMS - The present disclosure provides improved optical systems for particle processing (e.g., cytometry including microfluidic based sorters, drop sorters, and/or cell purification) systems and methods. More particularly, the present disclosure provides advantageous micro-lens array optical detection assemblies for particle (e.g., cells, microscopic particles, etc.) processing systems and methods (e.g., for analyzing, sorting, processing, purifying, measuring, isolating, detecting, monitoring and/or enriching particles. | 11-20-2014 |
| 20150346086 | METHODS OF SMOKE DETECTING USING TWO DIFFERENT WAVELENGTHS OF LIGHT AND AMBIENT LIGHT DETECTION FOR MEASUREMENT CORRECTION - In accordance with certain embodiments, a smoke detector determines the presence of smoke particles outside its housing based on measurements of light detected at different wavelengths and corrected based on an ambient light level. | 12-03-2015 |
| 250575000 | Plural paths | 1 |
| 20120138824 | CONTINUOUS LIQUID LEVEL SENSOR HAVING MULTIPLE LIGHT SOURCES AND LIGHT RECEIVING DEVICES - The invention provides an optical continuous liquid level sensor used to determine the level of a liquid within a vessel. The sensor includes one or a plurality of light sources located at various height levels, a plurality of light receiving devices located at various height levels, at least one optical lens in front of the light sources and the light receiving devices, and at least one processor connected to the light sources and the light receiving devices, which processor is capable of transmitting outgoing signals to the light sources, receiving reflected signals from the light receiving devices, processing related signal information so as to determine the liquid level continuously. Baseline data can be obtained by placing the entire level sensor in the air. | 06-07-2012 |
| 250576000 | Sample holder or supply | 17 |
| 20090039296 | Sensor Arrangement for Detecting a Liquid on a Surface - The sensor arrangement comprises at least one transparent elevation, which is formed on the surface. The transparent elevation is made of a first transparent material. At least one first facet of the transparent elevation defines a first angle with the surface. This first angle is larger than an angle at which a total reflection occurs at an interface of the first transparent material and air and is at the same time smaller at an angle at which a total reflection occurs at an interface of the first transparent material and the liquid. A light source is arranged for emitting an incident ray into a first direction passing through the surface into the transparent elevation such that in presence of a liquid at the first facet an incident ray will be transmitted through the first facet, wherein in absence of a liquid the incident ray will be reflected due to a total reflection at the facets. Additionally, a light detector is provided for detecting the reflected ray. | 02-12-2009 |
| 20090206286 | System and method for particle stream characterization - The invention relates to a system and method for characterization of a particle flow, for example, for characterization of material for milling, in particular for milled cereals, in a roller frame with a roller passage formed by a pair of rollers whereby the system comprises a withdrawal portion after the roller passage for removal of a milled material sample from the milled material flow exiting the roller passage, a presentation section for conveying and presenting the taken milled material sample, a recording device for recording the milled material passing through the presentation section and an analytical section for analysis of the recorded milled material sample. | 08-20-2009 |
| 20090294702 | OPTICAL MEASURING INSTRUMENT, AND WAVELENGTH CALIBRATION METHOD AND OPTICAL MEASURING METHOD FOR LIGHT DETECTOR - An optical measuring instrument includes: a flow channel for allowing a specimen to be circulated therein; a first light source including a light emitting diode for emitting light to be used for optical adjustment and/or image confirmation in the flow channel; a second light source for irradiating light upon the specimen circulated in the flow channel; and a light detector for detecting the spectrum intensity of the light emitted from the first and second light sources. | 12-03-2009 |
| 20090294703 | OPTICAL LENS SYSTEM AND METHOD FOR MICROFLUIDIC DEVICES - An apparatus for imaging one or more selected fluorescence indications from a microfluidic device. The apparatus includes an imaging path coupled to least one chamber in at least one microfluidic device. The imaging path provides for transmission of one or more fluorescent emission signals derived from one or more samples in the at least one chamber of the at least one microfluidic device. The chamber has a chamber size, the chamber size being characterized by an actual spatial dimension normal to the imaging path. The apparatus also includes an optical lens system coupled to the imaging path. The optical lens system is adapted to transmit the one or more fluorescent signals associated with the chamber. | 12-03-2009 |
| 20100200781 | METHOD AND APPARATUS FOR MANIPULATING AND DETECTING ANALYTES - A first integrated circuit operable in association with a microfluidic structure is provided that includes a field generator, a controller configured to control the field generator to generate at least one field to effect movement of at least one analyte of interest in a fluid contained in the microfluidic structure, and an optical detection component configured to optically detect the at least one analyte of interest, as movement of the at least one analyte of interest through the microfluidic structure is effected by the at least one field. A second integrated circuit operable in association with a microfluidic structure is also provided that includes an optical detector configured to generate an output indicative of light from at least one analyte of interest in a fluid within the microfluidic structure; and circuitry configured to convert the output of the optical detector to a digital value. | 08-12-2010 |
| 20110114859 | SENSOR CHIP, SENSOR CARTRIDGE, AND ANALYSIS APPARATUS - A sensor chip includes: a substrate that has a planar portion; and a diffraction grating, on which a target substance is placed, that includes a plurality of first protrusions periodically arranged in a period equal to or greater than 100 nm and equal to or less than 1000 nm in a first direction that is parallel to the planar portion, a plurality of base portions that is located between two of the first protrusions adjacent to each other and configures a base of the substrate, and a plurality of second protrusions that is formed on upper faces of the plurality of the first protrusions, has a surface formed from a metal, and is formed on the planar portion. | 05-19-2011 |
| 20110291033 | MICROFLOW ANALYTICAL SYSTEM - A microflow analytical system includes a laminate pump assembly connectable with one or more sources of fluid, one or more pneumatic control pumps, a mixer, and a sensor. The laminate pump assembly is adapted to deliver predetermined volumes of the fluid(s) through a plurality of flow paths which are formed within layers of the assembly. Each flow path can include an inlet valve, a pump valve, and an outlet valve each of which are controllable by the pneumatic control pumps. A series of manifolds can be formed within the layers of the pump assembly to provide for simultaneous activation of selected flow paths. Delivered fluid volumes can be mixed in the mixer which, in some embodiments, may be integral with the laminate pump assembly. The sensor can measure one or more characteristics of the mixed fluids to determine one or more properties of the fluids. | 12-01-2011 |
| 20110315902 | ANALYZER AND METHOD FOR SENSING USING THE SAME - An analyzer is disclosed herein. The analyzer encompasses a substrate having a surface with a plurality of distinct V-grooves formed therein. An input flow channel is configured to intersect and fluidly communicate with each of the plurality of distinct V-grooves at respective input points, and an output flow channel is configured to intersect and fluidly communicate with each of the plurality of distinct V-grooves at respective output points. | 12-29-2011 |
| 20120223260 | METHOD AND A SYSTEM FOR DETERMINATION OF PARTICLES IN A LIQUID SAMPLE - A method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals. | 09-06-2012 |
| 20130187067 | Optical Measuring System - An optical measuring system includes at least one radiation source, at least one radiation receiver, and at least one flow through cell. The radiation emitted by the at least one radiation source passes at least partially in an optical path between the radiation source and the radiation receiver through the flow through cell and then strikes the at least one radiation receiver. The radiation receiver is embodied to output a signal dependent on the intensity of the radiation striking the radiation receiver, wherein the flow through cell is arranged in a cell holder, which is connected via a first connection interface releasably with the radiation receiver and which is connected via a second connection interface releasably with the radiation source. | 07-25-2013 |
| 20130228710 | DEVICE FOR PHOTOMETRIC ANALYSIS OF A LIQUID SAMPLE AND SAMPLE CARRIER THEREFOR - The invention relates to a device for the analysis of a liquid sample by way of light, comprising a transparent sample carrier, a movable upper mirror, which can be moved between a closed position, in which the mirror encloses a measurement space between itself and the sample carrier, and an open position, in which the sample carrier can be accessed so as to apply a sample, and a beam path, which guides incident measurement light between a light entrance into the measurement space and a light exit out of the measurement space from the sample carrier to the upper mirror reflecting the light. The beam path guides measurement light at an oblique angle of incidence through the sample carrier to the upper mirror. | 09-05-2013 |
| 20140264097 | Beam Shaping Optics of Flow Cytometer Systems and Methods Related Thereto - In some aspects, a flow cytometer system is provided that includes beam shaping optics positioned to manipulate a light beam and produce a resulting light beam that irradiates the core stream at the interrogation zone of the flow cell. The beam shaping optics include an acylindrical lens positioned to receive and focus light in a direction of a first axis orthogonal to a direction of light travel, and a cylindrical lens positioned to receive the light output from the acylindrical lens and to focus the light output from the acylindrical lens in a direction of a second axis orthogonal to the first axis and to the direction of light travel. The resulting light beam output has a flat-top shaped intensity profile along the first axis, and a Gaussian-shaped intensity profile along the second axis. Related methods of shaping a light beam at an interrogation zone of a flow cell are also provided. | 09-18-2014 |
| 20140326905 | SYSTEMS AND METHODS FOR PERFORMING MEASUREMENTS OF ONE OR MORE MATERIALS - Systems and methods for performing measurements of one or more materials are provided. One system is configured to transfer one or more materials to an imaging volume of a measurement device from one or more storage vessels. Another system is configured to image one or more materials in an imaging volume of a measurement device. An additional system is configured to substantially immobilize one or more materials in an imaging volume of a measurement device. A further system is configured to transfer one or more materials to an imaging volume of a measurement device from one or more storage vessels, to image the one or more materials in the imaging volume, to substantially immobilize the one or more materials in the imaging volume, or some combination thereof. | 11-06-2014 |
| 20140339446 | SCANNING IMAGE FLOW CYTOMETER - An image flow cytometer has a flow chamber with a flow channel formed therein to permit a microparticulate sample to flow through the flow channel. An irradiation optical system irradiates the sample in the channel with incident light in an irradiation spot smaller than a selected representative size, e.g., smaller than the sample. The system scans an irradiation position perpendicular to the flow direction of the sample. A detection optical system is opposed to the irradiation optical system through the flow chamber, or is off the optical axis of the incident light. The detection system detects a light intensity of resultant light from the flow chamber. A control unit detects the microparticulate sample according to a change of the light intensity of the resultant light detected by the detection optical system. | 11-20-2014 |
| 20160103056 | Particle Analysis and Sorting Apparatus and Methods - A particle analyzer, comprising a source of a beam of pulsed optical energy; a detector comprising a number of spectral detection channels to detect optical signals resulting from interactions between the beam and particles in a sample (such as, e.g., fluorescence signals), and to convert the optical signals into respective electrical signals; optical paths from the source to the sample and from the sample to the detector; a flowcell connected with the optical paths and with a flow path for a suspension of particles; a signal processing module capable of: receiving the electrical signals from the detector; mathematically combining individual decay curves in the signals into a decay supercurve; allocating individual components of the supercurve to discrete bins of predetermined time constants; and quantifying the relative contribution of individual components to the supercurve; a particle sorting actuator; an actuator driver; and at least one particle collection receptacle. | 04-14-2016 |
| 20160109357 | DEVICE AND METHOD FOR EXAMINING SAMPLES IN A LIQUID - The invention relates to a device for examining samples ( | 04-21-2016 |
| 20160202108 | ELECTRO-OPTIC LIQUID SENSOR ENABLING IN-LIQUID TESTING | 07-14-2016 |
| 250577000 | Volume or level | 18 |
| 20090050827 | LUBRICANT DETERIORATION DETECTING DEVICE AND DETECTING DEVICE INCORPORATED BEARING ASSEMBLY - To provide a lubricant deterioration detecting device having a high degree of freedom in arranging within the bearing assembly or the like and capable of stably detecting the status of deterioration of the lubricant without being affected by the thickness of the lubricant and a change in temperature and also to provide a detector incorporated bearing assembly equipped with such lubricant deterioration detecting device, the lubricant deterioration detecting device includes a light source, a plurality of light detecting components for detecting rays of light emitted from the light source and subsequently transmitted through a lubricant, and a determining unit. The plural light detecting components have respective light detecting faces sequentially displaced in position. The determining unit compares respective signal strengths of outputs from the plural light detecting components to detect the status of deterioration of the lubricant. | 02-26-2009 |
| 20090084995 | APPARATUS AND METHOD FOR THE CONTINUOUS OPTICAL DETERMINATION OF THE FILL LEVEL OF LIQUIDS IN LIQUID TANKS OF VEHICLES OR AIRPLANES - The present subject matter relates to the continuous optical determination of the fill level of liquids in a liquid tank of a vehicle or airplane which have a refractive index of at least 1.33 at room temperature and at a wavelength of 589 nm. A device embodiment has an elongate measurement channel in which the liquid in the tank can enter the channel and form a liquid column. A light emitting means is arranged to introduce light into the channel and pass at least partly through the liquid column Light emitted into the channel is incident on a detector arrangement after passing through at least a part of the liquid column. The wall defining the channel is designed to provide a reflection coefficient of at least 70% at the wall in the region of the liquid column at least for an angle of incidence up to a predetermined limit angle. | 04-02-2009 |
| 20090146087 | Optical Semi-Quantitative 100% Filling Check of Pharmaceutical Capsules on Capsule-filling Machines - The invention relates to a method for monitoring the filling of a capsule with a medicament, a corresponding filing method and the corresponding devices. According to the monitoring method, after at least part of the capsule is filled with a given filling mass of given closed shape of medicament, in a first step, at least the filling mass located in the part of the capsule after filling is recorded with a digital image, in a second step, the shape of the filling mass located in the part of the capsule is determined from the digital image and, in a third step, the shape analysed to give an analysis of the filling in comparison with given shapes. | 06-11-2009 |
| 20090194714 | Fiber Optic Liquid Level Sensor - There is disclosed a fiber optic liquid level sensor apparatus that functions using total internal reflection and an index of refraction. More specifically, there is disclosed a fiber optic liquid level sensor apparatus comprising two fiber optic strands, each having a first end and a second end, substantially oriented in parallel to each other, wherein the second ends of both strands are attached to each other. | 08-06-2009 |
| 20100006786 | METHOD AND APPARATUS FOR OPTICAL LEVEL SENSING OF AGITATED FLUID SURFACES - A method and apparatus provide for non-contact optical measurement of the level of a fluid stored in a tank or container, the surface of the fluid being possibly agitated. The method processes numerically the digitized signal waveforms generated by a lidar apparatus based on a pulsed time-of-flight modulation scheme. A key step of the numerical processing is the computation of a waveform in which each data point is obtained from a statistical estimator of the variability of the amplitude signal echo measured at the distance from the lidar apparatus that corresponds to the rank of the data point in the waveform. The statistical estimator is preferably the standard deviation. By using a statistical estimator of the variability of the captured signal amplitude, the specific signal echo returned from an agitated fluid surface can be greatly amplified as compared to the signal echoes returned from any obstacle or medium that could be present along the path of the optical beam radiated by the lidar apparatus. The method then allows for an efficient retrieval of the useful signal echo from which the level of the fluid surface can be reliably measured with greater accuracy, particularly in situations where the useful signal echo would be buried in a strong signal echo returned from any optically scattering or absorbing medium that would fill in the volume of the tank above the fluid surface. | 01-14-2010 |
| 20100032593 | SYSTEM AND METHOD OF DETERMINING FLUID LEVELS IN CONTAINERS INCLUDING AN INFRARED DEVICE FOR DETECTING A FIRST VALUE ASSOCIATED WITH AN EMPTY PORTION OF A CONTAINER (AS AMENDED) - A system and method of determining fluid levels in containers is disclosed. In a particular embodiment, a first value of infrared energy associated with an empty portion of a container is detected and the container is scanned to detect a second value of infrared energy that is different from the first value of infrared energy. The method also includes to store an upper limit value associated with a vertical location of an upper surface of a fluid level when the second value of infrared energy is detected and to scan the container to detect a third value of infrared energy that is different from the second value of infrared energy. In addition, a lower limit value associated with a vertical location of a lower surface of the fluid relative to the upper surface is stored when the third value of infrared energy is detected. A height of the fluid is determined using a difference between the upper limit value and the lower limit value. | 02-11-2010 |
| 20100078581 | FLUID OVERFILL PROBE WITH THERMAL STRESS PREVENTION - A fluid overfill probe is resistant to failure caused by physical stresses resulting from thermal expansion of probe components. A fluid level detector is connected to circuit components that are mounted on a circuit board located in a housing of the probe. The circuit board is located within a tube that is positioned within, and secured to the housing, and the circuit board is secured to an inner surface of the tube along its edges. The tube has a shape and rigidity sufficient to maintain a gap between the circuit components and the inner surface of the tube such that thermal expansion of probe components result in no physical stress to the circuit components. | 04-01-2010 |
| 20110031420 | Optical Sensor System on a Device for the Treatment of Liquids - Optical sensor system on a device for the treatment of liquids with at least one device for the projecting of light in the direction of an optical axis onto at least one illumination area in the space, an adjustment device for the adjustment of the relative position of the at least one illumination area and a boundary surface in a direction diagonal to the optical axis, an adjustment device for the adjustment of the relative position of the at least one illumination area and the boundary surface in the direction of the optical axis, a control device for controlling the adjustment devices, such that they simultaneously adjust the relative position of the at least one illumination area and the boundary surface diagonal to the at least one device for the imaging of the at least one illumination area during the adjustment of the relative position onto at least one photodetector and an evaluation device connected with the at least one photodetector for the evaluation of the at least one measurement signal. | 02-10-2011 |
| 20120025112 | DEVICE AND METHOD FOR DETECTING LIQUID LEVEL OF MOLTEN SILICON USING LASER REFLECTED FROM CURVED MIRROR - The present invention discloses a laser liquid level detection device with linear optical magnification of a curved minor, wherein two openings are disposed at a top of a single crystal furnace symmetrically, a laser device and a CCD detecting device are respectively disposed on the two openings, and signal processing devices are pre-disposed within the laser device and the CCD detecting device. In the liquid surface height detection method using the device of the present invention, a model is first established to simulate the laser propagating path, a polynomial curve function of the curved mirror satisfying the requirement is calculated, the prepared curved minor is then disposed in the CCD detecting device, the change in the height of the liquid surface of molten silicon may be reflected on a CCD sensor, and therefore the actual change in the height of the liquid surface of molten silicon may be calculated. When detecting a liquid surface using the laser liquid surface detection device of the present invention, the position of the liquid surface of the single crystal furnace can be detected in real time, the detection accuracy is improved, and the reading and writing of the signal is facilitated, with the advantages of high accuracy, short time for detection, low failure rate, and easy installation and operation. | 02-02-2012 |
| 20120085945 | FIBER OPTIC LIQUID LEVEL DETECTOR - The present invention provides a hollow prism for detecting liquid level in the presence of an optical beam, including a hollow member, dielectric members sealed to the hollow member with one of the dielectric members arranged at an inclined angle to the other, a sealed hollow space disposed between said dielectric members, wherein an incident optical beam enters through the first dielectric member at normal incidence and exits as an emergent beam through the second dielectric member, and wherein the emergent optical beam remains undeviated when the hollow member not immersed in a liquid medium and the emergent beam suffers deviation when immersed in the liquid medium. The present invention also provides a fiber optic liquid level detector with the hollow prism for detecting liquid levels. | 04-12-2012 |
| 20130320247 | LIQUID CONSUMPTION DEVICE AND METHOD FOR CONTROLLING LIQUID CONSUMPTION DEVICE - A printing device has a detecting section in which a light emitting section and a light receiving section are provided, liquid reservoirs for storing liquid in which a prism is provided to reflect light emitted from the light emitting section corresponding a remaining state of the liquid, and a control section. The control section determines whether a process for air bubbles that is a process corresponding to an adhesion state of air bubbles in the prism is to be conducted or not based on a signal of light reception results obtained by receiving reflected light from the prism by the light receiving section. | 12-05-2013 |
| 20130320248 | LIQUID CONSUMPTION DEVICE - A liquid consumption device of the present invention has a holder in which an opening section is provided in a position to face a prism of an ink cartridge, a light emitting section, and a light receiving section. The holder has a region that changes a light amount of the reflected light emitted from the light emitting section and received by the light receiving section in a position spaced apart from the opening section at a predetermined distance in a main scanning direction. | 12-05-2013 |
| 20140042345 | VISUAL INDICATOR WITH SENSOR - A fluid level gauge includes a housing having a first end and a second end, and a window disposed in the housing, proximate to the first end. The fluid level gauge further includes an optical sensor disposed in the housing, proximate to the second end. A prism is disposed in the housing, between the optical sensor and the window, such that the prism and the window define a fluid chamber therebetween. The housing further includes a plurality of through holes that provides a fluid path from outside the housing to the fluid chamber. | 02-13-2014 |
| 20140264098 | SELF-ALIGNMENT FILLING LEVEL DETECTING DEVICE - A self-alignment filling level detecting device has a reflector and a sensor detachable from each other. The sensor has a light emitter, a light sensor, and a controller. The light sensor receives different light intensities when the reflector is assembled to the sensor and when the reflector is not assembled to the sensor. Thus, the controller determines whether the reflector has been accurately engaged and aligned with the sensor or not based on sensing results of the light sensor. Since the reflector and the sensor are detachable from each other, either the reflector or the sensor can be replaced individually if any one of them malfunctions. | 09-18-2014 |
| 20150346017 | FLUID VOLUMETRIC ANALYZER - Systems and methods are disclosed for an automatic fluid composition sensor. A fluid composition sensor includes a plurality of detection elements positioned along a length of a sample chamber having a number of material interfaces, the fluid composition sensor detecting location(s) of the interface(s) and/or a composition of one or more of the materials within the chamber. A fluid level sensor generates one or more pulses and measures a time delay between a transmission of the pulses from a source and a reception of the reflected pulses from a gas/oil interface to estimate a position of the oil/gas interface and thus a height of the oil in an oil well. | 12-03-2015 |
| 20150362355 | OPTICAL LIQUID LEVEL DETECTION SENSOR AND LIQUID OVERFILL PREVENTION SYSTEM COMPRISING SUCH SENSOR - An optical liquid level detection sensor includes a light source for emitting a light beam, a liquid contact surface, and a light detector, where the light source is arranged to emit a light beam towards the liquid contact surface, which liquid contact surface reflects or transmits the light beam in dependence of liquid being present on the liquid contact surface, where the light detector is arranged to receive the light beam after reflection on the liquid contact surface, where the sensor includes an at least partially transparent ring element, and where the liquid contact surface is formed by an outer surface of the ring element. | 12-17-2015 |
| 20150369715 | Automatic Measuring Instrument and Measuring Method for Unconventional Natural Gas Content - An automatic measuring instrument for an unconventional natural gas content includes a parsing tank, a thermostatic water bath box, a gas collection measuring cylinder, a balance measuring cylinder, a liquid storage tank, a data acquisition and control system, an upper computer, and a lifting device for driving the gas collection measuring cylinder and the balance measuring cylinder to move relative to the liquid storage tank, wherein both the lower ports of the gas collection measuring cylinder and the balance measuring cylinder are placed below the liquid level of the liquid storage tank. The parsing tank is placed in the thermostatic water bath box. A gas guide tube A is connected to the parsing tank and the gas collection measuring cylinder. A gas guide tube B is connected to the balance measuring cylinder and the outside atmosphere is fed therein. By the adoption of the measuring instrument, the constant-pressure isasteric automatic continuous measurement of the content of natural gas contained in an unconventional natural gas reservoir sample is achieved. Moreover, the measuring instrument is simple in structure, reliable in measurement and analysis results, convenient in operation and high in measurement accuracy. | 12-24-2015 |
| 20160178425 | Apparatus for determining a value that represents the amount of a liquid and its use | 06-23-2016 |
