Class / Patent application number | Description | Number of patent applications / Date published |
356323000 | Having beam modulation | 6 |
20090303476 | Modulation cancellation method in laser spectroscopy - Novel methods and laser spectroscopic systems for accurately measuring the concentration of compounds are disclosed herein. The disclosed methods utilize a modulation cancellation technique resulting in a significantly increase in the sensitivity and accuracy of laser spectroscopic measurements. In general, the methods and systems utilize modulation phase-shifting and amplitude attenuation to cancel the signals detected from at least two modulated light beams. Thus, any signal detected will be directly proportional to the concentration measurement. | 12-10-2009 |
20100182598 | DIGITAL FILTER SPECTRUM SENSOR - A spectrum sensing method includes (a) receiving an incident radiation simultaneously through a filter array composed of multiple bandpass filters, (b) digitizing spectral responses of the filter array, and (c) generating an estimate of spectral profile of the incident radiation based on digitized spectral responses of the filter array. | 07-22-2010 |
20110090498 | Method For Reducing Fringe Interference Of Light - A method for reducing fringe interference of light created in a passive cavity defined by partially reflecting optical surfaces in a laser spectroscopy system, wherein the optical path length of the cavity is varied with a triangular back-and-forth movement (x). In accordance with the invention, the spectroscopic measurement is performed in successive measurement cycles with a time interval between each two successive measurement cycles, the triangular movement is performed such that the turning points of the triangular movement (x) are positioned in successive ones of the time intervals, and after each or at each n-th measurement cycle, the time position of the turning points is moved relative to the measurement cycle. | 04-21-2011 |
20110141467 | APPARATUS AND METHOD FOR COHERENT MULTI-DIMENSIONAL OPTICAL SPECTROSCOPY - An apparatus and a method for coherent multi-dimensional optical spectroscopy employs a beam splitter for splitting a base light pulse into at least first to fourth light pulses, three of which are suitable for interaction with a sample, lens system focuses the first to fourth light pulses at a sample site, and an optical delay varies the arrival times of the first to fourth light pulses at the sample. A detector detects an interference signal. The beam splitter is a non-diffractive optical element. The light pulses, at least along part of their light paths, are guided pairwisely such that changes in the optical path length due to vibration of the beam splitter or due to the delay element are identical for each pair of pulses, where the pulse pairs compensate for any change in the interference signal due to a change of the arrival times of the pair of pulses. | 06-16-2011 |
20120140219 | Monolithic Geared Optical Reflector - A novel monolithic geared optical reflector apparatus which is configured from a gear blank machined to have an integral shaft and integral reflective surface with desired optical properties is introduced herein. Such a rotating mirror device is beneficially capable of being configured into any optical instrument, such as, but not limited to a spectrophotometer, wherein the reflector is adapted to accurately point to a plurality of locations within or out of the system via gear to gear rotation. | 06-07-2012 |
356325000 | Prior to testing | 1 |
20100277725 | UNIVERSAL MULTIDETECTION SYSTEM FOR MICROPLATES - An apparatus and a method for optically analyzing a sample are provided. The apparatus includes a first optical device that transmits a narrow waveband of light and has a first filter and a first monochromator that provide different paths for the narrow waveband of the light. The apparatus may also include a light source that generates the light as broadband excitation light, in which case the first optical device transmits a narrow waveband of the broadband excitation light through the first filter or the first monochromator. Further, the apparatus may include a second optical device that directs the narrow waveband of the broadband excitation light onto the sample and receives emission light from the sample, a third optical device that transmits a narrow waveband of the emission light, and a detector that converts the narrow waveband of the emission light into an electrical signal. | 11-04-2010 |