Did You Know...
...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 |
| 8155270 | Synergistic energy-dispersive and wavelength-dispersive X-ray spectrometry An X-ray spectroscope collects an energy-dispersive spectrum from a sample under analysis, and generates a list of candidate elements that may be present in the sample. A wavelength dispersive spectral collector is then tuned to obtain X-ray intensity measurements a... | 04/10/2012 |
| 8140500 | Spectral measurement with assisted data analysis A system is provided wherein spectrometer measurements, and/or measurements from other analytical instruments, are transmitted to a processing station which determines the component substances of the sample(s) subjected to the measurements. The names of the componen... | 03/20/2012 |
| 8111392 | Raman spectrometer with display of laser power at the sample A Raman optical method and apparatus is utilized to automatically and accurately recognize laser power measurements made at a desired illumination sample plane. From such a configuration, the methods and systems disclosed herein, enable the support of multiple optic... | 02/07/2012 |
| 8027811 | Processing of spectrometer pile-up events In an energy dispersive spectrometer wherein event (particle/photon) detection is performed by counting events spaced by greater than a shaping time, events which are spaced by less than the shaping time are also collected and counted. These “combined events” ar... | 09/27/2011 |
| 7812939 | Spectrometric measurements during blending / mixing A mixing bin for the blending of materials (e.g., pharmaceuticals, foodstuffs, etc.) bears a spectrometer which monitors the characteristics of the material being tumbled within the bin interior to thereby obtain an indication of the degree to which the material is ... | 10/12/2010 |
| 7698098 | Efficient spectral matching, particularly for multicomponent spectra An unknown spectrum obtained from infrared or other spectroscopy can be compared to spectra in a reference library to find the best matches. The best match spectra can then each in turn be combined with the reference spectra, with the combinations also being screene... | 04/13/2010 |
| 7688530 | Mounting system for precision mounting of interchangeable optical components A mounting system allowing rapid removal and replacement of optical components within an instrument includes a base unit connected to the instrument, and a carrier unit which includes an optical component. The carrier unit is magnetically attracted to the base unit,... | 03/30/2010 |
| 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 |
| 7595873 | Rapid spatial averaging over an extended sample in a Raman spectrometer An optical method and apparatus is utilized to provide rapid spatial averaging over a large sample area in a Raman spectrometer, without defocusing of the optical source or the collection optics. Spatial averaging provides a representative spectrum of a sample that ... | 09/29/2009 |
| 7567871 | Automatic material labeling during spectral image data acquisition A system for performing spectral microanalysis delivers analysis results during the course of data collection. As spectra are collected from pixels on a specimen, the system periodically analyzes the spectra to statistically derive underlying spectra representing pr... | 07/28/2009 |
| 7554091 | Feedback circuit for output control in a semiconductor X-ray detector An X-ray detector using a semiconductor detector, most preferably a Silicon Drift Detector, utilizes a field effect transistor or other voltage-controlled resistance to generate an output voltage proportional to its input charge (which is generated by the X-ray phot... | 06/30/2009 |
| 7496220 | Spectroscopic microscopy with image-driven analysis In a spectroscopic microscope, a video image of a specimen is analyzed to identify regions having different appearances, and thus presumptively different properties. The sizes and locations of the identified regions are then used to position the specimen to align ea... | 02/24/2009 |
| 7460229 | Beam alignment in spectroscopic microscopes A spectroscopic microscope includes a laser or other light source which emits light from the entrance aperture of its spectrograph, and also includes a light sensor situated on the microscope sample stage upon which a specimen is to be situated for microscopic/spect... | 12/02/2008 |
| 7456956 | Vibrational circular dichroism spectrometer using reflective optics A spectrometer generates Vibrational Circular Dichroism (VCD) measurements having an exceedingly high signal-to-noise ratio, as well as a greater wavelength range over which measurements may be accurately provided. This is achieved by utilizing reflective optics (pr... | 11/25/2008 |
| 7456950 | Spectroscope with spatial resolution control In a spectrometer, preferably in a spectrometric microscope, light from a specimen is collected at a collector objective element and delivered to a camera element, which in turn provides the light to a photosensitive detector. A focal plane is provided between the c... | 11/25/2008 |
| 7391509 | Devices and methods for multi-mode analytical microscopy, in particular for UV fluorescence and Raman analysis of samples An analytical microscope provides both UV fluorescence imaging and spectroscopic analysis of a sample with use of the same light collection element (objective lens or other optical element). An incident UV light beam travels to the sample via a dark field illuminati... | 06/24/2008 |
| 7378664 | Deicing of radiation detectors in analytical instruments In an analytical instrument having a radiation detector, such as an electron microscope with an X-ray detector, a thermoelectric element (such as one or more Peltier junctions) is driven by a cooling power supply to cool the detector and thereby decrease measurement... | 05/27/2008 |
| 7359060 | Multi-mode sampling probes An optical probe for use in infrared, near infrared, Raman, and other spectrometers includes a probe outer surface with a cavity defined therein. The probe emits light into a sample via emission locations on the probe outer surface, at least one being in the cavity.... | 04/15/2008 |
| 7345760 | Grating monochromator/spectrograph A monochromator for use in a spectrograph admits light from an aperture to a primary reflector (preferably an off-axis parabolic mirror) which collimates the input light with low aberration and directs it to a diffraction grating. The component wavelengths of the in... | 03/18/2008 |
| 7339668 | Spectrometer for analysis of multiple samples A spectrometer (100) includes a light source (102) providing output light (106) to the bundled input ends (108) of multiple light pipes (110). The light pipes (110) branch into sets (118) between their input ends (... | 03/04/2008 |
| 7339175 | Feedback circuit for output control in a semiconductor X-ray detector An X-ray detector using a semiconductor detector, most preferably a Silicon Drift Detector, utilizes a field effect transistor or other voltage-controlled resistance to generate an output voltage proportional to its input charge (which is generated by the X-ray phot... | 03/04/2008 |
| 7324272 | Spectroscopic microscope with multi-mode illumination A spectroscopic microscope allowing both molecular spectrometry and visible microscopy of a sample has a light source for its spectrometer which provides Koehler illumination of the sample, i.e., light from points on the light source is projected across an area of t... | 01/29/2008 |
| 7233870 | Spectrometric data cleansing Spectra obtained from spectrographic readings from a sample can be filtered for artifacts, e.g., distorted data points arising from cosmic ray interference, by subtracting one spectrum from another to obtain a difference spectrum; smoothing the difference spectrum; ... | 06/19/2007 |
