Entries |
Document | Title | Date |
20080204746 | Novel optical sensor for the instantaneous detection and identification of bioaerosols - The invention relates to an apparatus and a process of using the said apparatus in the in-time air sampling, detection and identification of bioaereosols; wherein identification of the said aerosol is based on a multiphoton laser diagnostic technique in combination with the velocity and aerodynamic size of the particular bioaerosol. | 08-28-2008 |
20080278723 | Method, Apparatus and System for Measuring the Transparency of Film - A method is disclosed for measuring four factors contributing to transparency of a colored film, namely, Haze, Scatter, Gloss and Bronze values by utilizing a diffuse sphere spectrophotometer. | 11-13-2008 |
20080285028 | FLUORESCENCE SPECTROPHOTOMETER - The present invention compensates a fluctuation of a light-emitting intensity of a light source. First splitting portions ( | 11-20-2008 |
20080297794 | APPARATUS FOR OPTICAL INSPECTION OF WAFERS DURING POLISHING - A measurement system installable within a processing equipment and more specifically within the exit station of a polishing machine. The optical scheme of this system includes a spectrophotometric channel, an imaging channel and also means for holding the wafer under measurement. | 12-04-2008 |
20090046287 | Zero angle photo spectrophotometer for monitoring of water systems - A method and apparatus for monitoring water and other fluid systems is described. The fluid is continually monitored spectrophotometrically by measuring many optical parameters in an in-line, on-line system, which compensates for normal fluid changes while detecting abnormalities. | 02-19-2009 |
20090073435 | OPTICAL MEASUREMENT DEVICE FOR TRACE LIQUID SAMPLE - In a spectrophotometer for measuring transmitted light of a trace liquid sample, four sample holders | 03-19-2009 |
20090097025 | Miniscule-Size Photo-Spectrometer Units - Device and method for implementing a photo-spectrometer unit, PSU ( | 04-16-2009 |
20090097026 | COLOR MEASUREMENTS OF RECONSTITUTED TIGECYCLINE AND DEGRADANT THEREOF - The present invention relates to a color method and multivariate model whose color measurements of reconstituted tigecycline for injection is predictive of appearance and oxidative degradation wherein said method is a means of detecting the presence of a degradant which forms when tigecycline is contacted with oxygen. | 04-16-2009 |
20090128808 | METHOD FOR THE COMMUNICATION AND COMPARISON OF THE WHITENESS OF PAPER - The instant invention relates to a process for the rating of optically brightened paper by visually assessing the paper to ensure that it is white, followed by measurement on a highly accurate single reference spectrophotometer to generate a simple rating, which can then be used to inform the consumer or end user of the whiteness level of the paper. The whiteness level is controlled during production by an audited quality system to ensure each sample of paper is identical in rating. | 05-21-2009 |
20090135419 | METHOD AND SYSTEM FOR SPECTRAL MEASUREMENTS - A system and method for use in spectrometric measurements of an article using selecting an optimal integration time range of the light detection system during which the measurement is to be applied, the optimal integration time being that at which a required value of signal to noise ratio (SNR) of the measurements is obtainable. | 05-28-2009 |
20090153855 | SPECTROPHOTOMETER - When the apparatus is energized or a validation check is performed, a deuterium lamp | 06-18-2009 |
20090213371 | Spectrophotometer Comprising Two Detectors for Overlapping Wavelength Ranges - A spectrophotometer has a first photodetector ( | 08-27-2009 |
20090219527 | Apparatus and Method for Adapting Conventional Cuvettes for Use in a Vertical Light Beam Spectrophotometer - The invention relates to an apparatus and method for adapting conventional spectrophotometer cuvettes for use in a vertical light beam spectrophotometer. | 09-03-2009 |
20090219528 | METHODS AND SYSTEMS FOR COMPUTING A SIZE DISTRIBUTION OF SMALL PARTICLES - Methods, systems and computer readable media for computing small particle size distributions. A reference matrix of pre-computed reference vectors is provided, with each reference vector representing a discrete particle size or particle size range of a particle size distribution of particles contained in a dilute colloid. A measurement vector of measured extinction values of a sample dilute colloid is provided, wherein the measured extinction values have been measured by spectrophotometric measurement at the discrete wavelengths. Size distribution and concentrations of particles in the sample dilute colloid are determined using linear equations, the reference matrix and the reference vector. | 09-03-2009 |
20090290153 | Apparatus and Method for Spectrophotometric Analysis - An apparatus for spectrophotometric analysis comprises a sample reception surface, which is arranged to receive a sample to be analysed, and a sample contacting surface, which is moveable in relation to the sample reception surface such that it may be brought to a first position, where the surfaces are sufficiently far apart to allow the sample to be placed on the sample reception surface, and a second position, where the sample contacting surface makes contact with the sample and compresses the sample. The apparatus further comprises a sample thickness controller, which is arranged to control the distance between the sample reception surface and the sample contacting surface in the second position of the sample contacting surface, such that a sample thickness between the surfaces may be shifted for obtaining at least two measurements of the sample at different optical path lengths through the sample. | 11-26-2009 |
20090296085 | UV ENHANCED FULL WIDTH ARRAY SCANNING SPECTROPHOTOMETER - A system and method for full width scanning color analysis of a printed media sheet are disclosed. The full width array spectrophotometer system includes one or more substantially linear elongated illumination arrays of closely spaced multiple illumination sources. The sources include sets of illumination sources, including a first set of different color illumination sources and a second set including one or more UV-emitting illumination sources. The sets are arranged to span a printer paper path or other object path to illuminate a band extending transversely across a printed print media sheet or other object moving in the path. A full width array light imaging sensor includes an elongated array of multiple closely spaced photodetectors for detecting plural colors and is positioned adjacent to and extending substantially parallel to the linear array(s) to receive radiation reflected from the transverse illuminated band. | 12-03-2009 |
20090316149 | SPECTROPHOTOMETER SYSTEM WITH MODULAR 45/0 HEAD - In one embodiment, the invention is a spectrophotometer with a modular 45/0 head. One embodiment of an apparatus for measuring a reflectance of a sample includes a plurality of light emitting diodes for emitting light, a reflective housing positioned above the plurality of light emitting diodes, where the reflective housing is a dome having a plurality of apertures formed around its perimeter, a sample channel for capturing a first portion of the light, where the first portion of the light interacts with the sample, and a reference channel for capturing a second portion of the light, where the second portion of the light is independent of the sample. | 12-24-2009 |
20100020320 | SPECTROSCOPY APPARATUS BASED ON HETERO-JUNCTION PHOTOTRANSISTORS - This invention discloses a variety of spectroscopy apparatus based on high sensitivity photo detector arrays and image sensors employing sidewall-passivated mesa-structure hetero-junction phototransistors (HPTs). | 01-28-2010 |
20100045979 | PHOTOCATALYSIS TESTING DEVICE - A photocatalysis testing device includes a reaction chamber, a light source, and a spectrophotometer. Reactants including a methylene blue (MB) solution and a photocatalyst can be added to the reaction chamber and illuminated by the light source. Color vanishing rate of the MB solution can be measured by the spectrophotometer. Further, the photocatalysis testing device also includes a light-tight chamber and a temperature stabilizer. The reaction chamber and the light source are received in the light-tight chamber to avoid ambient light effecting on the photocatalysis test. The spectrophotometer is positioned outside the light-tight chamber and optically coupled to the reaction chamber. The temperature stabilizer is configured for stabilizing temperature of the MB solution. | 02-25-2010 |
20100045980 | SPECTROPHOTOMETER - A liquid sample is dropped onto the upper surface of a transparent and cylindrical light-transmitting body ( | 02-25-2010 |
20100085568 | Dual Sample Mode Spectrophotometer - A dual-mode method and apparatus of selectively measuring samples in either a vessel or as a surface tension retained sample held between two opposing pedestals is introduced. In either configuration, such modes further contain optical paths from a source system through a small-volume or large-volume sample to a spectrometer based system. Such a system enables a user to measure samples with absorbances ranging from about 0.005 up to about 2.0 Absorbance Units for any given wavelength. | 04-08-2010 |
20100103413 | METHOD AND DEVICE FOR CAVITY ENHANCED OPTICAL VERNIER SPECTROSCOPY - A spectroscopic analysis of a sample includes arranging the sample in a resonator cavity for transmitting cavity mode frequencies with a cavity mode frequency spacing, coupling pulsed source light into the resonator cavity, with the source light including source comb frequencies with a source frequency spacing, coupling pulsed transmitted light out of the resonator cavity, and spectrally resolved detecting the transmitted light with a detector device. The cavity mode frequency spacing and the source frequency spacing are detuned relative to each other, so that the transmitted light includes transmitted comb frequencies with a spacing larger than the source frequency spacing. The detecting feature includes collecting spectral distributions of the transmitted light in dependence on relative positions of the cavity mode frequencies and the source comb frequencies. The cavity mode frequencies and the source comb frequencies are varied relative to each other and different transmitted comb frequencies are individually resolved. | 04-29-2010 |
20100177309 | MODULAR SPECTROSCOPY LABORATORY - A modular spectroscopy laboratory (MSL), comprises a rigid case with a flashlamp rotatably mounted in said case. A sample holder is provided for holding a sample of solution for analysis, and a spectrometer is optically connected to the sample holder. The flashlamp is positionable at least two angles relative to the sample holder. | 07-15-2010 |
20100195098 | METHOD AND APPARATUS FOR MEASURING LIGHT ABSORPTION OF LIQUID SAMPLES - Techniques for measuring light absorption of liquid samples are described herein. According to one embodiment, an apparatus includes an upper arm having a first measuring surface and a lower arm having a second measuring surface coupled to the lower arm via a hinge. The upper arm is capable of swinging via the hinge. One of the measuring surfaces is coupled to a light source while the other is coupled to a detector. The apparatus further includes an actuator configured to position the upper arm into a first measuring position. The first measuring surface of the upper arm and the second measuring surface of the lower arm are spaced approximately to contact and sandwich a liquid sample in between to form an optical path, such that light generated from the light source is received and detected through the light path by the detector for measuring light absorption by the liquid sample. Other methods and apparatuses are also described. | 08-05-2010 |
20100201979 | Systems and Methods for Utilizing Cylindrical Beam Volume Holograms - Systems and methods for performing spectral-spatial mapping in (one and two dimensions) and coded spectroscopy are described. At least one embodiment includes a system for performing spectral-spatial mapping and coded spectroscopy comprising a cylindrical beam volume hologram (CBVH), the CBVH configured to receive input beams and generate diffracted beams in a first direction to perform spectral-spatial mapping, the CBVH further configured to allow input beams to pass in a second direction orthogonal to the first direction unaffected. The system further comprises a first lens configured to receive the diffracted beams and perform a Fourier transform on the input beams in the first direction, a second lens configured to receive the diffracted beams and focus the beams in the second direction to generate output beams, and a charged coupled device (CCD) configured to receive the outputs beams, the output beams used to provide spectral analysis of the input beams. | 08-12-2010 |
20100231904 | Method and Device for Measuring Hydrocarbons in Aqueous Solutions - The present invention relates to a method and device for conducting the analysis of hydrocarbons in aqueous solutions, accurately matching the EPA Test Method 1664 HEM, without the need for a solvent extraction step. The solvent extraction step is eliminated by: 1) delivering the aqueous solution directly to a standard cuvette in a controlled and convenient manner, and 2) correlating the analyzer's output reading to a predetermined calibration curve. The predetermined calibration curve is generated by having a duplicate sample of aqueous solution tested by Method 1664 and the present device and the two values correlated. The sample delivery system is comprised of a standard 1-liter sample bottle, a flow control section, and an analyzer adapting section. The sample bottle contains the aqueous solution to be analyzed. The flow control section has various conduits which allow the user to regulate the rate at which the sample flows through to the analyzer using gravity and contains an optional fill line which can be connected directly to the process that generates the aqueous media being tested. The analyzer adapting section connects the flow control section to a standard round glass cuvette and provides a sealing means. A method for using the device is presented which calls for taking multiple analyzer readings at timed intervals as the aqueous solution flows through the cuvette. The values are then averaged and compared to the Method 1664 calibration data. Accuracy of this method to the Method 1664 can be maintained with periodic recalibration, typically monthly. | 09-16-2010 |
20100296088 | Method and apparatus for detecting polarizing direction of electromagnetic wave - A method for detecting polarizing direction of electromagnetic wave includes disposing a carbon nanotube structure in a vacuum environment, irradiating a surface of the carbon nanotube structure by an electromagnetic wave with a polarizing direction while rotating the carbon nanotube structure, and determining the polarizing direction of the electromagnetic wave according to change of the visible light emitted from the carbon nanotube structure. The carbon nanotube structure includes a plurality of carbon nanotubes arranged along a substantially same direction. The carbon nanotube structure can absorb the electromagnetic wave and emit a visible light. The rotating axis is substantially perpendicular to the surface of the carbon nanotube structure irradiated by the electromagnetic wave. | 11-25-2010 |
20100321687 | SHUTTERING AND SEALING DEVICE - A shuttering and sealing device is disclosed. In one embodiment, the device includes an aperture through which light may pass to an optical sensor, a seal surrounding the aperture, and a shutter movable between an open position in which the shutter does not cover the aperture and a closed position in which the shutter covers the aperture and the seal seals the shutter around the aperture. | 12-23-2010 |
20110001967 | TARGET SUBSTANCE DETECTION SYSTEM - In a localized surface plasmon detection system using a metal thin film pattern, by radiating light for detection on a detecting element using an effective light source which has a peak out of an axis, the present invention strikes a balance between narrowing a peak width of a spectrum and highly efficient illumination even if it is a case of using converging or diffused light. | 01-06-2011 |
20110102790 | Zero angle photon spectrophotometer for monitoring of water systems - A method and apparatus for monitoring water and other fluid systems is described. The fluid is continually monitored spectrophotometrically by measuring many optical parameters in an in-line, on-line system, which compensates for normal fluid changes while detecting abnormalities. | 05-05-2011 |
20110128540 | CALIBRATION DEVICE AND OPTICAL CHARACTERISTIC MEASURING SYSTEM USING THE SAME - A calibration device | 06-02-2011 |
20110134425 | 48-CHANNEL ARRAYED ISOSBESTIC WAVELENGTH DETECTION SYSTEM - A multi-channel arrayed isosbestic wavelength detection system comprises an arrayed light source board, an arrayed photoelectric sensor board, and an intermediate system frame. The arrayed light source board and arrayed photoelectric sensor board are assembled at opposite sides of the intermediate system frame. In addition, the arrayed light source system has a plurality of light-emitting elements, each of which comprises two monochromatic light sources that provide main wavelength and reference wavelength respectively, and the two wavelengths are isosbestic wavelengths. The arrayed photoelectric sensor system has a plurality of photoelectric sensors, which are aligned at fixed positions in one-to-one correspondence with the light-emitting elements. | 06-09-2011 |
20110141466 | MINIATURE FLOW-THROUGH CUVETTE AND SPECTROPHOTOMETER CONTAINING THE SAME - A miniature flow-through cuvette for spectrophotometric measurement of a liquid sample includes a cuvette body of a transparent material including a first outer surface and an opposing second outer surface, and a flow channel disposed through the cuvette body. The flow channel includes first and second interface segments generally vertically oriented, each having an open exit; a measurement segment interconnecting the first and second interface segments; a first inclined planar inner surface disposed in a turning segment between the first interface segment and the measurement segment, facing the first outer surface; and a second inclined planar inner surface disposed in a turning segment between the second interface segment and the measurement segment, facing the second outer surface. The first and second inclined inner surfaces terminate the measurement segment at opposing ends thereof. Further provided is a spectrophotometer including the miniature flow-through cuvette. | 06-16-2011 |
20110149280 | Apparatus and method for spectrophotometric analysis - An apparatus for spectrophotometric analysis comprises a sample reception surface, which is arranged to receive a sample to be analysed, and a sample contacting surface, which is moveable in relation to the sample reception surface such that it may be brought to a first position, where the surfaces are sufficiently far apart to allow the sample to be placed on the sample reception surface, and a second position, where the sample contacting surface makes contact with the sample and compresses the sample. The apparatus further comprises a sample thickness controller, which is arranged to control the distance between the sample reception surface and the sample contacting surface in the second position of the sample contacting surface, such that a sample thickness between the surfaces may be shifted for obtaining at least two measurements of the sample at different optical path lengths through the sample. | 06-23-2011 |
20110235033 | EMISSION SPECTROPHOTOMETER - An emission spectrophotometer capable of inhibiting non-uniformity of spectral intensities of component elements is provided. The emission spectrophotometer generates pulse light emission by supplying an energy accumulated in an electricity accumulating and discharging unit to a gap between an electrode and a test material, and the emission spectrophotometer includes a detection unit, for detecting an energy charged to the electricity accumulating and discharging unit before the pulse light emission; and a detection unit, for detecting an energy remaining in the electricity accumulating and discharging unit after the pulse light emission. It is determined whether the detected light is emitted by fully using the energy accumulated in the electricity accumulating and discharging unit. | 09-29-2011 |
20110235034 | Spectrophotometer - When a system is powered on and becomes ready for a measurement, it automatically begins to acquire an interferogram (IFG). When a new IFG is acquired, if a background (BKG) IFG is present in a memory but there is no sample IFG (S | 09-29-2011 |
20110242532 | BIODEGRADABLE FIBERS FOR SENSING - Biodegradable waveguides and their uses with devices, such as medical devices, are described. In one embodiment, an optically transmissive fibrous structure comprising biodegradable fiber waveguides may be disposed on a surface of a bandage. The bandage in combination with the optically transmissive fibrous structure may allow for simultaneously monitoring and covering an injured area of a patient. In one embodiment, the fiber waveguides may be provided as multi-channel/multi-core biodegradable fiber waveguides for transmitting light to and from a patient tissue. In some implementations, the bandage may include hydrogel-based biodegradable fiber waveguides that may deliver therapeutics to an injured patient area. | 10-06-2011 |
20110292386 | SPECTRAL MEASUREMENT DEVICE - A spectral measurement device includes an optical band-pass filter section having a spectral band of first to n-th wavelengths (n is an integer of 2 or more), a light receiving section, a correction operation section, and a signal processing section. When an m-th wavelength band (1≦m≦n) is an interest wavelength band, and a k-th wavelength band (k≠m and 1≦k≦n) other than the m-th wavelength band is a non-interest wavelength band, the optical band-pass filter section functions as a m-th band-pass filter corresponding to the m-th wavelength band and a k-th band-pass filter corresponding to the k-th wavelength band. | 12-01-2011 |
20110292387 | Circular Dichroism Spectrophotometric Method And Circular Dichroism Spectrophotometry Apparatus Using ATR Method - A simple method and apparatus for circular dichroism spectrophotometry are provided that allow a liquid, cream-type, and gel-type specimens having a low degree of transparency to be measured directly and nondestructively without passing light through the specimens. Right-handed or left-handed circularly polarized light enters a prism from an entrance face and hits a specimen mounting face of the prism, on which a specimen is placed, at an angle of 80°. Then, after being totally reflected by the specimen mounting face and going out from an exit face, the light is detected, and the absorbance is determined. | 12-01-2011 |
20110299072 | MERCURY MEASURING APPARATUS FOR MEASURING MERCURY CONTAINED IN SAMPLE COMPOSED MAINLY OF HYDROCARBON - To provide a mercury measuring apparatus of a closed system capable of performing automatically a process ranging from collection to injection of the sample composed mainly of hydrocarbon, which is effective to accomplish a highly reliable measurement. The mercury measuring apparatus | 12-08-2011 |
20110299073 | SPECTROMETRIC INSTRUMENT - A colorimetric instrument includes a power control section adapted to vary the power to be applied to the light source between the wavelengths in accordance with at least one of spectral characteristics of the light source, spectral characteristics of the measurement optical system, and light receiving sensitivity characteristics of the light receiving section. | 12-08-2011 |
20110310383 | HIGH RESOLUTION SURFACE PLASMON RESONANCE INSTRUMENT USING A DOVE PRISM - A surface plasmon resonance instrument and measuring method, in which a lens collimates light into a light beam, a prism propagates the collimated light beam at a single propagation angle and with internal reflection on a face of the prism, and an analyzer processes the collimated light beam from the prism. The face of the prism is configured to receive a surface plasmon resonance sensor and at least the first lens and the prism are aligned on a single optical axis. | 12-22-2011 |
20120127466 | PVT ANALYSIS OF PRESSURIZED FLUIDS - Methods and systems for performing pressure-volume-temperature testing on fluids include: a portable environmental control chamber | 05-24-2012 |
20120176614 | Liquid Chromatography Detection Unit, System, and Method - An embodiment of a liquid chromatography detection unit includes a fluid channel and a radiation detector. The radiation detector is operable to image a distribution of a radiolabeled compound as the distribution travels along the fluid channel. An embodiment of a liquid chromatography system includes an injector, a separation column, and a radiation detector. The injector is operable to inject a sample that includes a radiolabeled compound into a solvent stream. The position sensitive radiation detector is operable to image a distribution of the radiotabeled compound as the distribution travels along a fluid channel. An embodiment of a method of liquid chromatography includes injecting a sample that comprises radiolabeled compounds into a solvent. The radiolabeted compounds are then separated. A position sensitive radiation detector is employed to image distributions of the radiolabeled compounds as the radiolabeled compounds travel along a fluid channel. | 07-12-2012 |
20120262713 | SPECTROMETER ARRANGEMENT - A spectrometer assembly ( | 10-18-2012 |
20120307240 | SPECTROPHOTOMETER AND METHOD FOR DETERMINING PERFORMANCE THEREOF - Provided are a spectrophotometer using a xenon flash lamp and which can compare with data stored in the past, and a method for determining the performance of the spectrophotometer. In normal times, spectroscopic analysis is performed by employing a bundle of light rays emitted from the xenon flash lamp, spectrally separating the bundle of light rays into arbitrarily-defined wavelengths with a spectroscope through a concave mirror, and detecting the bundle of light rays having passed through a sample with a photodetector. When the performance is to be determined, a low-pressure mercury lamp is arranged in a path of the bundle of light rays between the xenon flash lamp and the spectroscope, a light-shield plate which constitutes a shutter mechanism is operated to shield the light and allow the light to pass through, and the intensity of the light is detected, to thereby determine the “wavelength accuracy” or the “resolution” by employing the bright-line spectrum of the low-pressure mercury lamp. Thus, spectroscopic analysis can be performed while allowing to compare with data stored in the past to be made. | 12-06-2012 |
20120327411 | Spectrophotometer - A spectrophotometer has a specimen cell; a light source unit for emitting light to the specimen cell; a photodetector for detecting the light that passed through the specimen cell; a light-shielding unit for blocking the light from impinging on the photodetector at predetermined periods; a memory unit for storing output strength signals detected by the photodetector; and a controller for calculating transmittance or absorbance based on output strength signal S of the incidence duration and output strength signal DS of the light-blocked duration stored in the memory unit. The incidence duration and light-blocked duration occur in this sequence in a single period. The controller calculates the true output strength signal s | 12-27-2012 |
20130003060 | Spectrophotometer - A spectrophotometer | 01-03-2013 |
20130038873 | ARTIFACT APPARATUS TO MIMIC REFLECTION LOSSES OF SOLUTION-FILLED MICROTITER PLATE READERS AND RELATED USES THEREOF - An apparatus used to calibrate microtiter plate readers. The apparatus includes one or more structures having two exterior surfaces wherein one of the exterior surfaces is coated with a coating selected to establish on that surface a reflection loss that mimics reflection loss at an air-liquid interface, and the other of the two exterior surfaces is coated with a coating selected to establish a reflection loss on that surface that mimics the reflection loss at a bottom surface of a microtiter plate. The apparatus may be a single layer, a multi-layered composition or a container. The apparatus is an artifact that may be used to calibrate a plate reader by mimicking a solution-filled microtiter plate. The artifact may be used for a plurality of liquids, including water. The artifact produces reflection losses more closely mirroring reflection losses expected for a liquid-filled microtiter plate well. | 02-14-2013 |
20130107255 | SPECTROPHOTOMETER | 05-02-2013 |
20130155405 | SPECTROPHOTOMETER - In order to provide a spectrophotometer, which can detect, by means of output intensity signals obtained by a photodetector, the entry of external light at the time of sample cell replacement and the like without providing a door with an opening/closing sensor or the like, a spectrophotometer ( | 06-20-2013 |
20130201476 | OPTIMAL TINT IDENTIFIER/SELECTOR - A method for determining a paint formulation includes: obtaining target color information for a target color, identifying a plurality of toners and corresponding concentrations of the toners in a paint formula that can be used to produce a paint having a color that is similar to the target color, and modifying the paint formula by removing one of the identified toners having a lowest concentration to produce a modified paint formula that can be used to produce a paint having a color that is similar to the target color, and determining if the modified paint formula meets user specified acceptance criteria. An apparatus that can be used to perform the method is also described. | 08-08-2013 |
20130201477 | ELEMENTARY ANALYSIS APPARATUS AND METHOD - Provided herein is an elementary analysis apparatus allowing size and weight reduction and capable of performing atomic adsorption spectrometry by an electrothermal method and of forming plasma without using a gas. A sample is supplied from a liquid feed portion through a flow channel to an atomizing portion, and a voltage is applied between electrodes. When the voltage is applied to the electrodes, electric current and electric field are concentrated in the atomizing portion and bubbles are generated to cause a plasma in the bubbles, and element in the sample is atomized by the plasma. Light that irradiates the atomizing portion from a light source and is transmitted therethrough is received, for example, by an optical fiber or the like and split by a spectrophotometer. The amount of the split light is detected by a detector and analyzed by a computer. | 08-08-2013 |
20130208276 | Magneto-Optic Dispersion Spectrometer - A method and apparatus is disclosed for measurement of probe light frequency. The apparatus includes an optical spectrometer comprised of a medium of rapidly changing circular birefringence. The circular birefringent medium changes the polarization of probe light an amount that is dependent upon probe light frequency. Thus probe light frequency is deduced by analyzing probe light polarization after it propagates through the birefringent medium. The birefringent medium is constructed from a gaseous substance and a magnetic field, where the gaseous substance has one or more absorption lines near the probe light frequency. The magnetic field permeates the gaseous substance and shifts the frequency of the absorption line(s) by the Zeeman effect. The method includes probe light emitted from a transmitter, which scatters off of a target, then the scattered probe light is collected and transmitted through the optical spectrometer where frequency is measured. With measurement of probe light frequency, a variety of information about the target can be deduced. | 08-15-2013 |
20130278931 | SAMPLE RECEIVING APPARATUS - Sample receiving apparatus ( | 10-24-2013 |
20140016128 | SPECTROPHOTOMETER - The spectrophotometer of the present invention measures a spectral reflectance of an object to be measured to thereby determine a color value of the object to be measured based on a color-matching function of an XYZ color system and the spectral reflectance. The spectrophotometer includes an irradiation unit configured to irradiate the object to be measured with light having a spectral intensity distribution in which a relative intensity at a wavelength at which the value of z reaches its peak in the color-matching function is equal to or greater than 0.5. | 01-16-2014 |
20140016129 | VERTICAL AND HORIZONTAL BEAM HYBRID PIPETTE CALIBRATION SYSTEM - A system and related method for determining the volume of a sample solution delivered by a liquid delivery device. The system includes devices for adding and removing diluent, the sample solution under analysis and a mixture of the two in a cell having a substantially constant cross sectional area and a known horizontal optical path length. The system includes one or more spectrophotometers to measure horizontally and vertically absorbance associated with two distinct chromophores. A first chromophore of unknown concentration is in the diluent and a second chromophore of known concentration is in the sample solution. The method determines absorbance horizontally and vertically of the first chromophore prior to adding the sample solution and then determining absorbance of the first chromophore horizontally and vertically and the second chromophore horizontally after mixing the diluent and sample solution together. That information is used to determine the volume of the sample solution added to the cell. | 01-16-2014 |
20140022543 | DEVICE FOR DETERMINING THE POSITION OF MECHANICAL ELEMENTS - A device for determining the position of a first mechanical element relative to a second mechanical element, having a first measurement unit for attachment to the first mechanical element, a second measurement unit for attachment to the second mechanical element, and an evaluation unit. The first measurement unit emits spectrally differing first and second light beams in essentially the same direction and a position-sensitive optical detector. The second measurement unit has a reflector arrangement facing the first measurement unit, in order to reflect the first and second light beams onto the detector. Surfaces facing the first measurement unit being color splitters having different reflectivity/transmissibility for the first light beam and the second light beam. The evaluation unit determines the location of the first and second mechanical elements relative to one another from the incidence positions of the reflected first and second light beams on the detector. | 01-23-2014 |
20140063496 | SPECTROPHOTOMETER - Provided is a spectrophotometer capable of further reducing a change in temperature of a spectroscopic unit that houses a spectroscopic element, a sample, and the like therein, compared with conventional spectrophotometers. A spectrophotometer | 03-06-2014 |
20140092384 | DIFFRACTION GRATING MANUFACTURING METHOD, SPECTROPHOTOMETER, AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD - The present invention has been made in view of the above, and an object thereof is to provide a manufacturing technique capable of manufacturing a diffraction grating which is suitable for use in a spectrophotometer and has an apex angle of a convex portion of about 90° and can satisfy high diffraction efficiency and a low stray light amount. A method of manufacturing a diffraction grating, the method including: setting an exposure condition such that a sectional shape of a convex portion of a resist on a substrate, which has been formed by exposure, is an asymmetric triangle with respect to an opening portion shape of a mask having an opening portion with a periodic structure and an angle formed by a long side and a short side of the triangle is about 90°; and performing exposure. | 04-03-2014 |
20140118736 | TEXTURE ANALYSIS OF A PAINTED SURFACE USING SPECULAR ANGLE DATA - A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data from a spectrophotometric measurement of a target coating on a surface, wherein the measurement was taken at a specular angle, and removing, using the processor, at least a portion of the specular reflectance data that is attributable to a glossy coating of the surface. The method also includes constructing, using the processor, at least one spectral reflectance curve, and identifying, using the processor, at least one type of pigmentation effect of the target coating based at least in part on the at least one spectral reflectance curve. | 05-01-2014 |
20140340678 | PHOTORECEPTOR PROTEIN-BASED SPECTROPHOTOMETER, METHOD FOR MANUFACTURING THE SAME AND METHOD FOR LIGHT DETECTION USING THE SAME - A photoreceptor protein-based spectrophotometer may include a field-effect transistor and a photoreceptor protein on the field-effect transistor (FET), the photoreceptor protein exhibiting change in electrical properties by absorbing light and being activated. Since the spectrophotometer can convert the light absorbed by the photoreceptor protein to an electrical signal using the FET, it can mimic human vision by using human photoreceptor proteins. The spectrophotometer can measure the color, intensity, etc. of light of broad wavelength ranges as in human vision. Thus, the spectrophotometer can be applied to the development of artificial vision, etc. | 11-20-2014 |
20150022810 | SPECTROPHOTOMETER AND IMAGE PARTIAL EXTRACTION DEVICE - A spectrophotometer in which output ends of optical fibers are one-dimensionally arrayed in a z-axis direction on an output end face of a fiber box. That is to say, a two-dimensional area image of a display screen picked up through input ends arranged at 10×10 lattice points on an input end face of optical fibers is converted into a one-dimensional image inside the fiber box and projected from output ends on the output end face in the form of a one-dimensional area image parallel to the z-axis. This one-dimensional area image has position information of 100 measurement points in the z-axis direction. | 01-22-2015 |
20150070694 | METHOD AND SYSTEM FOR CHARACTERIZING COLOR VARIATION OF A SURFACE - A system and method of characterizing a color variation of a surface includes a device having a light source and a plurality of sensors positioned at respective viewing angles. An algorithm is stored on and executable by a controller to cause the controller to direct a beam of light at the measurement location with the light source and measure the light leaving the measurement location with the sensors at a plurality of azimuth angles to obtain respective measured color values. The controller is configured to define a color vector function F(θ, φ) to represent the color variation of the surface. The controller is configured to determine the color vector function F(θ, φ) based at least partially on the respective measured color values. The system allows for a representation of color space of a surface at any azimuth and viewing angle. | 03-12-2015 |
20150070695 | WAVELENGTH CALIBRATION METHOD FOR MONOCHROMATOR - Provided is a method for performing a wavelength calibration of a monochromator with a diffraction grating by casting light from a standard light source whose emission intensity contains a change with a predetermined cycle onto the diffraction grating and measuring an intensity of light reflected by the grating. The method includes the steps of: measuring at least two times the intensity of the reflected light from the grating within the aforementioned cycle at each of the rotational positions of the grating corresponding to a range of wavelengths including a peak wavelength of a bright line spectral light generated by the standard light source; determining an intensity value | 03-12-2015 |
20150103342 | SPECTROPHOTOMETER - The spectrophotometer of the present invention measures a spectral reflectance of an object to be measured to thereby determine a color value of the object to be measured based on a color-matching function of an XYZ color system and the spectral reflectance. The spectrophotometer includes an irradiation unit configured to irradiate the object to be measured with light having a spectral intensity distribution in which a relative intensity at a wavelength at which the value of z reaches its peak in the color-matching function is equal to or greater than 0.5. | 04-16-2015 |
20150138546 | SPECTROPHOTOMETER INCLUDING PHOTODIODE ARRAY - A spectrophotometer in which a normal plane to a diffraction grating is inclined with respect to an optical axis of an incident light passing through a slit, the normal plane to the diffraction grating passing through an intersection point between the optical axis of the incident light i and a grating surface of the diffraction grating. The diffraction grating and a photodiode array PDA are placed such that the photodiode array PDA is parallel to the normal plane to the diffraction grating and that a normal plane to the photodiode array PDA includes a line that is symmetrical to the optical axis of the incident light i about the normal plane to the diffraction grating. | 05-21-2015 |
20150362402 | METHODS AND SYSTEMS FOR DETERMINING OPTICAL PROPERTIES FOR LIGHT TRANSMITTED MEDIUMS - Methods and systems for determining optical properties for light transmitted mediums are provided. One method includes acquiring one or more measured values indicative of a reflectance for a material, acquiring one or more measured values indicative of a transmittance for the material, and determining a set of calculated values for an index of refraction coefficient and an extinction coefficient from the one or more measured values indicative of reflectance and transmittance, respectively. The method includes identifying a calculated value from the set of calculated values for the index of refraction coefficient and a calculated value from the set of calculated values for the extinction coefficient that are within a threshold determined by the difference between the one or more measured values indicative of the reflectance or transmittance and a predicted reflectance or transmittance, respectively. The method includes determining a reflectance and transmittance for the material using the calculated values. | 12-17-2015 |
20160084711 | OBJECT MOVEMENT CONTROL DEVICE AND FOURIER TRANSFORM INFRARED SPECTROPHOTOMETER - Feedback control of an object which moves back and forth in a straight line along a linear guide is performed through PID control. A parameter adjustment unit which determines the control parameters to be used for PID control performs feedback control and determines the optimal value of control parameters by means of an evaluation function based on the error between the measured value of the current velocity and the target velocity, for the control parameters of maximum reverse voltage and at least one from among proportional coefficient (C | 03-24-2016 |
20180024003 | SPECTROPHOTOMETER DIAGNOSIS | 01-25-2018 |
20220136962 | ISOLATION OF FLUID SAMPLE IN MULTI-PASS OPTICAL SYSTEM - Implementations are described herein for isolating mirrors and/or other potentially-vulnerable components of multi-pass optical systems from samples being analyzed, while mitigating interference and/or reduction in optical power. In one implementation, an apparatus may include: an optical cell with one or more passages, the one or more passages provided for introducing a sample into an interior of the optical cell for analysis and for removing the sample from the interior; a first mirror with a first reflective surface that faces the interior of the optical cell; one or more additional mirrors with one or more corresponding additional reflective surfaces that face the first reflective surface of the first mirror; and a wedge-shaped optical element positioned between the first mirror and the interior of the optical cell. | 05-05-2022 |