...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7952710 | Spectrometric analysis of fluids in-situ A box 14 having a body 13 is used with a transparent flexible bag containing a liquid such as an IV bag. First and second faces 12 are positioned relative to each other. The faces each have therewithin an end or fiber optic port 11 of a r... | 05/31/2011 |
| 7924422 | Calibration method for optical metrology A zoned order sorting filter for a spectrometer in a semiconductor metrology system is disclosed with reduced light dispersion at the zone joints. The order sorting filter comprises optically-transparent layers deposited underneath, or on top of thin-film filter sta... | 04/12/2011 |
| 7894057 | Methods of analyzing samples using broadband laser light Broadband light, for example, from a Fabry-Perot quantum cascade laser, is shone onto a sample, and spectral data concerning the broadband light reflected from the sample is collected. The spectral data is analyzed to determine information about one or more substanc... | 02/22/2011 |
| 7889335 | Handheld spectrometer including wireless capabilities A method for collecting and analyzing spectrum data to identify a composition of a sample material is described. The method includes obtaining a sample material, receiving a geographical location of the sample material at a handheld instrument, and analyzing the sam... | 02/15/2011 |
| 7884931 | Optically multiplexed imaging system and methods of operation The invention describes an optical multiplexer for increasing optical data collection efficiency across at least two fields of view. The optical multiplexer includes a first optical path for operatively receiving optical data from a first field of view and at least ... | 02/08/2011 |
| 7876433 | Spectrometer optics comprising positionable slots and method for the fully automatic transmission of calibrating adjustments between spectrometers equipped with optics of this type The invention relates to spectrometer optics with a beam path from a beam source to a number of electro-optical sensors without spatial resolution, the beam path comprising an entry slot, a dispersive element, and a number of exit slots arranged on a focal curve, wh... | 01/25/2011 |
| 7872749 | Instrument for making optical measurements on multiple samples retained by surface tension The invention is an installment for making multi-channel spectroscopic measurements on a plurality of nanodrop samples held by surface tension between opposing optical fibers wherein a single fiber is scanned across a linear spaced array of receiving, detecting fibe... | 01/18/2011 |
| 7869034 | Multi-angle and multi-channel inspecting device A multi-angle and multi-channel detecting device for detecting one or more than one samples is provided. The device has a light collector and a multi-channel kernel module. The light collector has a plurality of fiber probes arranged perpendicular to and/or inclined... | 01/11/2011 |
| 7869035 | Sample table for a food analyzing device Disclosed is a sample table for a food analyzing device used for analyzing a food sample. Said sample table includes a sample holder (14) for receiving the food sample, a means for moving the sample holder (14), and a housing (12) that surrounds... | 01/11/2011 |
| 7864316 | Spectrometric characterization of pharmaceutical heterogeneity In one general aspect, a spectroscopic method for monitoring heterogeneity of a sample is disclosed. In this method, sampled spectroscopic measurements are acquired over a range of different micro locations in a macro-sample of the sample. This step is repeated for ... | 01/04/2011 |
| 7839502 | Method for the wavelength calibration of a spectrometer Methods for wavelength calibration of spectrometers are provided which achieve better calibration accuracies than conventional peak search methods. The methods are based on the principle of a stepwise relative shift of corresponding measured-value blocks of a model ... | 11/23/2010 |
| 7839503 | Method and system for a solar simulator System and method for testing solar cells is provided. The system includes a first light source configured to generate a first optical beam; a second light source configured to generate a second optical beam; a reflector for each light source, configured to collimat... | 11/23/2010 |
| 7821635 | In-situ detection and analysis of methane in coal bed methane formations with spectrometers A measuring system for in-situ measurements down a well (1) by a spectrometer (4) is provided. The spectrometer (4) includes a radiation source (5) and a detector (6). A probe (15) optically connected to the spectrometer ( | 10/26/2010 |
| 7817272 | High-resolution spectrally adjustable filter For spectrally filtering at least one input beam, a first reflective element is configured to tilt to multiple tilt orientations that each corresponds to a different angle of propagation of at least one input beam. One or more optical elements are configured to chan... | 10/19/2010 |
| 7817271 | Confocal microscope and method for detecting by means of a confocal microscope The invention relates to a confocal microscope which illuminates a sample (15) by means of at least one light source. A detection light beam (17) is emitted from the sample (15). The detection light beam (17) is spectrally split up in a s... | 10/19/2010 |
| 7812948 | Different-kind-of-object detector employing plane spectrometer A detector for detecting a different kind of object among objects being carried with high resolution using a plane spectrometer irradiates near-infrared ray and performs plane spectroscopy for a reflected light. The detector also detects spectral data of the reflect... | 10/12/2010 |
| 7812949 | Spectrometer with cylindrical lens for astigmatism correction and demagnification A spectrometer which in one embodiment including a dispersive element and a concave element. The dispersive element may be a flat or concave grating which receives light and reflects the light in different collimated wavelengths. The concave element being located do... | 10/12/2010 |
| 7808635 | Wide swath imaging spectrometer utilizing a multi-modular design A wide swath imaging spectrometer utilizing an array of individual spectrometer modules in the telescope focal plane to provide an extended field of view. The spectrometer modules with their individual detectors are arranged so that their slits overlap with motion o... | 10/05/2010 |
| 7787120 | Spectrophotometer and liquid chromatography system Detection sensitivity is improved by increasing the amount of light of beams that irradiate a sample cell without causing saturation of a detector with ultraviolet beams or visible beams. This spectrophotometer includes a sample cell, which stores a sample to be mea... | 08/31/2010 |
| 7746468 | Analysis system Analysis system including a central control section for generally controlling the analysis that sends a command to perform a pre-injection operation, to an automatic sampler together with information designating a sample to be selected, such as an identification num... | 06/29/2010 |
| 7733484 | Hyperspectral scene projection/generation systems and methods Embodiments of hyperspectral scene projection/generation systems and methods are disclosed. One method embodiment, among others, comprises dispersing a beam of light at one of a plurality of selectable wavelengths, the beam of light corresponding to a scene, and dis... | 06/08/2010 |
| 7728972 | Linear fiber array mount to a spectrometer A coupler for coupling a linear fiber array to a spectrometer is provided, the coupler having a tube, a linear fiber bundle array inserted through the tube, an alignment mechanism for aligning the linear fiber bundle array with a slit on the spectrometer, and a lock... | 06/01/2010 |
| 7719681 | Apparatus and method for measuring vapor flux density A two-chamber electron impact emission sensor effective for monitoring vapor flux of materials in the presence of interfering species is described. The sensor includes two independent electron excitation regions and one photodetector for monitoring emission from exc... | 05/18/2010 |
| 7701573 | Method for correlating spectroscopic measurements with digital images of contrast enhanced tissue A system and method of correlating Raman measurements with digital images of a sample so as to classify the sample's disease state. A spectroscopic data set is obtained for the sample positioned in the field of view of a spectroscopic device. With the sample removed... | 04/20/2010 |
| 7697135 | Scanning focal length metrology An optical metrology system collects spectral data while scanning over the focal range. The spectral data is evaluated to determine a plurality of peak intensity values for wavelengths in the spectra. The peak intensities are then combined to form the measured spect... | 04/13/2010 |
| 7697136 | Reflection characteristic measuring apparatus, and method for calibrating reflection characteristic measuring apparatus In a reflection characteristic measuring apparatus 10 and a method for calibrating the reflection characteristic measuring apparatus, multiple standard spectral characteristics, or multiple calibration data based on the multiple standard spectral characterist... | 04/13/2010 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |