Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7675616 | Combustion plume absorption gauge An absorption spectroscopy gauge to measure chemical concentrations in a post-detonation combustion cloud of energetic materials. A broadband light source coupled to an optical fiber guides light into a gauge via a first leg where a plano-convex lens collimates the ... | 03/09/2010 |
| 7671984 | Spectrometric measuring probe and method for recalibrating the same An arrangement for measuring the diffuse reflection of samples and a method for internal recalibration of the measuring head. The spectrometric measuring head with a device for recalibration comprises a housing which is provided with a window and which contains an i... | 03/02/2010 |
| 7671986 | 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). ... | 03/02/2010 |
| 7671985 | Device for small spot analysis using fiber optic interfaced spectrometers The present invention is an optical device for small spot analysis by diffuse reflectance using fiber optic interfaced spectrometers. The device comprises a source of electromagnetic radiation and a set of mirrors designed to project most of the radiation from the s... | 03/02/2010 |
| 7659979 | Optical inspection apparatus and method Performing modulation spectroscopy by directing a probe beam and a pump beam at a strained semiconductor sample, modulating the pump beam, and reflecting the probe beam into a detector. The detector produces a direct current signal proportional to reflectance R of t... | 02/09/2010 |
| 7649627 | Wavelength calibration method and wavelength calibration apparatus In a wavelength calibration method, an observed spectrum of a light that has a wavelength band is obtained, wherein the light has at least an attenuated wavelength component that corresponds to at least a predetermined absorption wavelength that is included in the w... | 01/19/2010 |
| 7649626 | Imaging spectrometer An imaging spectrometer is disclosed that comprises imaging means for dividing a received image into two or more spatially separated images and means for detecting each spectral image, and is characterized in that the imaging means comprises at least one polarizing ... | 01/19/2010 |
| 7646482 | Methods and apparatus for optical analysis of samples in biological sample containers An apparatus and method for optically analyzing samples in a biological sample container containing samples arranged at different locations on the base of the container. An optical acquisition device is provided comprising a detector and an objective. The position o... | 01/12/2010 |
| 7636158 | Optimal coupling of high performance line imaging spectrometer to imaging system An optical coupling relay system has an imaging optical system having an object plane, an exit pupil and an image plane. An image analyzer has an image plane and an entrance pupil, and a detector is located in a detector plane and contains photosensitive material. A... | 12/22/2009 |
| 7633616 | Apparatus and method for photo-electric measurement An apparatus and a method for photo-electric measurement is included; the apparatus comprises photo-electric conversion devices and an optical system which is modularly expandable in order to acquire electromagnetic radiation from a line or area of any desired size ... | 12/15/2009 |
| 7626696 | Method and apparatus for reconfigurable field of view in a FAST-based imaging system A system and method to obtain a variable field of view (FOV) of a sample without requiring an increase in an imaging CCD array size. In a fiber array spectral translator (FAST) based chemical imaging system, the fibers in the fiber bundle may be organized in differe... | 12/01/2009 |
| 7623234 | System and method for detecting and identifying an analyte A sensor (200, 900) comprising an illuminator (212, 500, 804, 832, 858, 904), a receiver (216, 400, 420, 460, 480, 808, 836, 862, 924) and an analyzer (240) for detecting and identifying an analyte having a characteristic absorption band ... | 11/24/2009 |
| 7616307 | Optical measurement apparatus and method An optical modulation spectroscopy system comprises a probe beam source and components for directing the probe beam at a sample. It also may comprise a modulated pump beam source and components for directing a modulated pump beam at the sample. A dispersive system m... | 11/10/2009 |
| 7616306 | Compressive sampling and signal inference An optical wavemeter includes a slit, a diffraction grating, a mask, a complementary grating, and a detector. A monochromatic source is incident on the slit. The diffraction grating produces an image of the slit in an image plane at a horizontal position that is wav... | 11/10/2009 |
| 7609380 | Real-time calibration for downhole spectrometer An apparatus for performing real-time analysis of a subterranean formation fluid includes a light source configured to transmit at least a sample signal through a sample of the subterranean formation fluid and a reference signal, at least one photodetector configure... | 10/27/2009 |
| 7605917 | Spectrometer A spectrometer 1A is made up of: an optical body 10 within which a light separation path is set along which an object light to be separated propagates; a light entry slit 16 through which the object light enters; a diffraction grating 17 ... | 10/20/2009 |
| 7605918 | Spectrometer signal quality improvement via exposure time optimization A spectrometer operator may specify a desired signal to noise ratio (SNR) to be attained when collecting spectra from a sample. The SNR from a single brief sample exposure is used to determine the maximum exposure time achievable without overloading the spectrometer... | 10/20/2009 |
| 7599061 | Ultra compact spectrometer apparatus and method using photonic crystals The present invention is directed to methods of photonic crystal formation, and to methods and apparatus for using such photonic crystals, particularly in conjunction with detector arrays. Photonic crystal parameters and detector array parameters are compared to opt... | 10/06/2009 |
| 7576855 | Spectrophotometric method and apparatus Disclosed is a spectrophotometry for a spectral transmission measurement of an extremely small volume of sample solution. A sampler 15 is formed of a flat plate member formed with a sample-holding hole 152 which penetrates the flat plate member in its ... | 08/18/2009 |
| 7570357 | Visible/near-infrared spectrometry and its device A visible/near-infrared spectrometry and its device for determining the components of a sample and the characteristics of the components of the sample by using visible light and/or near-infrared light in the wavelength range from 400 nm to 2500 nm. This spectrometry... | 08/04/2009 |
| 7570358 | Angularly resolved scatterometer, inspection method, lithographic apparatus, lithographic processing cell device manufacturing method and alignment sensor An angularly resolved scatterometer uses a broadband radiation source and an acousto-optical tunable filter to select one or more narrowband components from the broadband beam emitted by the source for use in measurements. A feedback loop can be used to control the ... | 08/04/2009 |
| 7548312 | Measuring device for ingredient detection A measuring device has a sensor for registering at least one parameter selected from the group consisting of at least one ingredient, at least one property, and both, of a material being investigated by the sensor, the sensor including at least one illumination sour... | 06/16/2009 |
| 7538872 | Diagnostic methods and apparatus for directed energy applications Determining relationships between one laser beam and an object onto which such beam is directed including: directing such beam onto the object; collecting radiation from the beam that is reflected back; spectrally discriminating the collected, reflected radiation fr... | 05/26/2009 |
| 7538871 | Colour measurement device with associated measurement head A spectrophotometer for integration purposes includes a measurement head with an illumination arrangement (10) including at least one fight source (11) for the illumination of a measurement object located in a measurement plane (M) under an angle of in... | 05/26/2009 |
| 7538870 | Multi-channel colorimeter and method for measuring spectral intensity characteristics A multi-channel colorimeter has a spectral means which separates light to be measured into components of different wavelengths, a photoelectric converter provided with multiple wavelength channels that receive the separated light to be measured according to the wave... | 05/26/2009 |
| 7532324 | Equipment and method for LED's total luminous flux measurement with a narrow beam standard light source This invention belongs to the luminous flux measurement field, and especially relates to the equipment and method for LED's total luminous flux measurement with a narrow beam standard light source. The system for LED's total luminous flux measurement with a narrow b... | 05/12/2009 |
| 7515263 | Optical spark mode discriminator methods and systems Methods and systems for discriminating among sparking modes are disclosed. In one embodiment, a method includes receiving light from a spark into a spectrometer, generating a light intensity spectrum using the spectrometer, and classifying the sparking mode based on... | 04/07/2009 |
| 7515262 | Crystal grating apparatus Apparatus for analyzing light having at least one wavelength, the apparatus comprising: (a) a light deflector for deflecting the light so as to provide a deflected light beam characterized by at least one wavelength-dependent angle, respectively corresponding to the... | 04/07/2009 |
| 7508507 | Device for selecting and detecting at least two spectral regions of a light beam An apparatus for selecting and detecting at least two spectral regions of a light beam includes a selection device, a detection device, and a light suppression device. The light suppression device suppresses reflected and/or scattered light of an illuminating light ... | 03/24/2009 |
| 7495761 | Array detector coupled spectroanalytical system and graded blaze angle grating A spectroanalytical system for receiving radiation to be analyzed along a first path includes a grating in the first path with periodic faceted grooves for spatially separating the radiation as a function of wavelength. The blaze angles of the faceted grooves are pr... | 02/24/2009 |
| 7492454 | Achromatic and absorption reducing light collecting system, particularly adapted to optical spectrometric analysis This system collects light emitted by at least one light source (52) and focuses it onto at least one light detection device (54). Preferably, it comprises a first mirror (58) that collects light emitted by the source and focuses it on a second ... | 02/17/2009 |
| 7489397 | Instrument, system and method for automated low cost atmospheric measurements An apparatus and method for measuring ozone in the atmosphere. The apparatus utilizes a fiber optic cable connected to a collimating lens located outdoors and a spectrometer that is located indoors. A pan-and-tilt positioning unit having a pan-axis capable of tracki... | 02/10/2009 |
| 7483132 | Analysis of a material in particulate form An apparatus (10) for analyzing material in particulate form is disclosed. The apparatus (10) comprises a vertically elongate housing (12) having an open upper end (26) and a restricted outlet at the lower end. A probe (28) directs... | 01/27/2009 |
| 7483133 | Multiple angle of incidence spectroscopic scatterometer system Techniques for optimizing the sensitivity of spectroscopic measurement techniques with respect to certain profile variables by selecting desired measurement angles since the measurement sensitivity to each variable depends, at least in part, on the measurement angle... | 01/27/2009 |
| 7480047 | Time-domain computation of scattering spectra for use in spectroscopic metrology In an embodiment, a method of time-domain simulation for simulating scattering spectra is described. The method may provide for computing spatial derivatives including computing spectral derivatives in some portion of the domain and finite difference derivatives in ... | 01/20/2009 |
| 7477380 | Scanning microscope comprising a confocal slit scanner for imaging an object A scanning microscope for imaging an object includes a light source and a spectrally selective detection device. An illumination beam path extends from the light source to the object. A detection beam path extends from the object to the detection device. A spectrall... | 01/13/2009 |
| 7471391 | Method for calibrating spectral characteristics of a spectral analyzer and a spectral analyzer applying said method The differences between the center wavelength and half bandwidth of the spectral sensitivity of each pixel of a sensor array in a spectral analyzer to be calibrated and the preprovided respective standard values of the center wavelength and the half bandwidth are ex... | 12/30/2008 |
| 7468792 | Evaluation apparatus and evaluation method An evaluation apparatus which evaluates a sample. The apparatus includes a light source which irradiates the sample with light, an imaging spectrometer which spectroscopically measures light reflected by the sample and senses an image, a first calculator which obtai... | 12/23/2008 |
| 7466409 | Method and apparatus for CMOS imagers and spectroscopy A miniaturized fluidic spectrometer comprises a light source, a fluidic circuit having a plurality of flow channels through which an analyte flows, and a proximity detector array for detecting light from the light source transmitted through the fluidic circuit. Wher... | 12/16/2008 |
| 7463354 | Device for the spectral selection and detection of the spectral regions of a light beam An apparatus for the spectral selection and detection of spectral regions of a light beam includes a selection unit and a detection unit. The selection unit includes a spectral splitting device and a light blocking and reflecting device. The spectral splitting devic... | 12/09/2008 |