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| Number | Title | Issue Date |
| 7859662 | On-vehicle fuel property detection device The detection device provides with an optical fiber composed of a core, a clad and a fiber jacket. A grating is applied to the core, and the fiber jacket located at the portion to which the grating is applied is removed so that the clad is in contact with a fuel fed... | 12/28/2010 |
| 7830504 | Automated systems and assemblies for use in evaluating agricultural products and methods therefor Methods and assemblies are provided for evaluating plants for presence of pests. Methods may include separating pests from a plant to produce a sample of pests for analysis, illuminating the sample to produce emitted light from the sample, and comparing the emitted ... | 11/09/2010 |
| 7782455 | Spectrograph with a tilted detector window The invention concerns a spectrograph with a tilted detector window comprising a light source (1), an entrance slit (3), a grating (4), a detector (5) comprising a window through which the light beam diffracted by the grating (4) i... | 08/24/2010 |
| 7444196 | Optimized characterization of wafers structures for optical metrology A patterned structure in a wafer is created using one or more fabrication treatment processes. The patterned structure has a treated and an untreated portion. One or more diffraction sensitivity enhancement techniques are applied to the structure, the one or more di... | 10/28/2008 |
| 7427932 | Compressive sampling and signal inference An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a plurality of sensors. The optical signal is collected at each subaperture of... | 09/23/2008 |
| 7391388 | Segmented spectrum imaging system and method A system and method for producing spectrally segmented images of object fields. In one embodiment the system includes an optical system that focuses light received from an object field along a focal plane with a field stop positioned within the optical system that h... | 06/24/2008 |
| 7369229 | Spectral imaging system An imaging system and methods for resolving elements of interest through and obscuring environment by removing undesired signals from the intervening, obscuring environment is disclosed. A passive hyperspectral imaging sensor is calibrated and integrated into a syst... | 05/06/2008 |
| 7359050 | Compact triple pass hyperspectral imager A compact, triple pass hyperspectral imager (spectrometer). The hyperspectral imager (imaging system) of this invention includes an optical sub-system, a reflective slit element, a reflective dispersive element located substantially at a front plane, the front plane... | 04/15/2008 |
| 7356580 | Plug and play sensor integration for a process module A process chamber with a computer system that controls the process chamber is connected to one or more sensors, which are used to monitor the process in the process chamber. The sensors are connected to the computer system in a client/server relationship, in a way t... | 04/08/2008 |
| 7349590 | Polarization modulation interrogation of grating-coupled waveguide sensors An optical interrogation system and a GCW sensor are described herein that are used to determine whether a biological substance (e.g., cell, molecule, protein, drug) is located in a sensing region of the GCW sensor. The optical interrogation system includes a light ... | 03/25/2008 |
| 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 |
| 7342659 | Cross-dispersed spectrometer in a spectral domain optical coherence tomography system A spectral-domain optical coherence tomography system using a cross-dispersed spectrometer is disclosed. The interfered optical signal is dispersed by a grating into several orders of diffraction, and these orders of diffraction are separated by an additional disper... | 03/11/2008 |
| 7304814 | Compact infrared spectrometer, and methods and systems for manufacture and assembly of components used in same A compact spectrometer operable in a wavelength range of 4.5 or more microns includes an entrance slit, a collimating mirror, a grating, a focusing mirror and a first focal plane. At least some radiation passing through the slit follows an optical path in which at l... | 12/04/2007 |
| 7283231 | Compressive sampling and signal inference A transmission mask or cooled aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmission function. The optical signal transmitted by the mask is detected ... | 10/16/2007 |
| 7274011 | Spectral imager and fabrication method A spectral imager includes an elongate light propagation medium that receives light at one end, has graded average spectral absorption properties in the elongate direction, and spectral detectors distributed in the elongate direction. The spectral absorption propert... | 09/25/2007 |
| 7268869 | In-situ spectrograph and method of measuring light wavelength characteristics for photolithography An in-situ spectrograph having a spectrometer module positioned at a reticle plane or at a wafer plane of a photolithography projection system is disclosed. The spectrometer module disperses light projected from an illumination source, and the produced spectrum may ... | 09/11/2007 |
| 7262846 | Encoder spectrograph for analyzing radiation using spatial modulation of radiation dispersed by wavelength An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 08/28/2007 |
| 7253895 | Image detection and identification device An imaging device is provided which may include a plurality of imaging lenses. Each imaging lens may be placed adjacent to a dispersive element. The imaging lenses and dispersive element(s) may be placed adjacent to a focal plane array to allow light from a light em... | 08/07/2007 |
| 7223368 | Diffraction-based diagnostic devices A biosensor includes a substrate with a layer of receptive material disposed thereon. The receptive material is specific for an analyte of interest. A pattern of active and inactive areas of the receptive material are defined in the receptive material layer by a mas... | 05/29/2007 |
| 7212693 | Optical substance analyzer A portable waveguide sensor having one or more gratings. In one embodiment, the sensor has a waveguide, wherein a plurality of grooves imprinted onto the waveguide form a Bragg grating. The surface of the grooves has a functional layer adapted to bind a substance of... | 05/01/2007 |
| 7209229 | Wavelength selectable spectroheliograph An apparatus, system and method are provided for composing an image at a selectable wavelength, wavelengths or bandwidth. Light passing through an entrance slit is dispersed into a spectrum and recorded. In an embodiment, spectral images corresponding to respective ... | 04/24/2007 |
| 7199877 | Scalable imaging spectrometer A scalable imaging spectrometer, using anamorphic optical elements to form an intermediate focus in only one dimension. Light reflects off an object to form an incident beam. The beam reflects off an anamorphic objective mirror to form a line focus at a slit. At the... | 04/03/2007 |
| 7199360 | System and method for calibrating a fluorescence microscope A system and method are provided to calibrate fluorescence detection of a fluorescence microscope by using a near-perfectly uniform reflector as a target in combination with temporary removal of the microscope's emission filter. Excitation light is reflected from th... | 04/03/2007 |
| 7196791 | Optical detection device A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source (31) towards the optical element (24) and from there is transmitted to at least one detector (29; 29′). The optical element has ... | 03/27/2007 |
| 7186981 | Method and apparatus for thermographic imaging using flash pulse truncation A pulse controller device for controlling the excitation of a heat source used in thermographic imaging is disclosed. The pulse controller device comprises a power supply, a heat source coupled to the power supply, a device coupled to the power supply signaling the ... | 03/06/2007 |
| 7157711 | Microspectrometer gas analyzer A robust, compact spectrometer apparatus for determining respective concentrations or partial pressures of multiple gases in a gas sample with single as well as multiple and even overlapping, absorption or emission spectra that span a wide spectral range. ... | 01/02/2007 |
| 7116418 | Spectral imaging apparatus and methods Spectral imaging apparatus and methods are disclosed. In one embodiment, a spectral imaging apparatus includes a spectral imaging apparatus includes a diffraction grating having one or more entrance apertures formed therein, a collecting reflecting element for refle... | 10/03/2006 |
| 7099086 | Wavelength division multiplexing system and method using reconfigurable diffraction grating An improvement in a wavelength division multiplexer and/or a dense wavelength division multiplexer (WDM/DWDM) is achieved by incorporating an electronically reconfigurable diffraction grating (108). The introduction of the electronically reconfigurable diffraction g... | 08/29/2006 |
| 7099004 | Digital spectral identifier-controller and related methods A portable high speed, low cost, wide spectrum light scanning unit with an aiming device for receiving reflected light from an object and diffracting the light into segments of wavelengths and a linear sensor array having elements positioned to receive the segments ... | 08/29/2006 |
| 7052650 | Apparatus and method for the manipulation and testing of molecules, and in particular of DNA Apparatus for the manipulating and testing of molecules and in particular of DNA comprising a surface on which the molecule is anchored on multiple points at one end and a paramagnetic bead on which said molecule is anchored on multiple points at its other end, magn... | 05/30/2006 |
| 7054514 | Optical waveguide sensor, device, system and method for glucose measurement An optical waveguide sensor for glucose measurement comprises a substrate, a first optical waveguide layer formed on a surface of the substrate, an entrance grating and an exit grating which are formed contacting with the first optical waveguide layer and being spac... | 05/30/2006 |
| 7012291 | Monolithic three-dimensional structures Three-dimensional structures of arbitrary shape are fabricated on the surface of a substrate through a series of processing steps wherein a monolithic structure is fabricated in successive layers. A first layer of photoresist material is spun onto a substrate surfac... | 03/14/2006 |
| 7002728 | Electrophoretic particles, and processes for the production thereof Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating. ... | 02/21/2006 |
| 6996292 | Staring 2-D hadamard transform spectral imager A staring imaging system inputs a 2D spatial image containing multi-frequency spectral information. This image is encoded in one dimension of the image with a cyclic Hadamarid S-matrix. The resulting image is detecting with a spatial 2D detector; and a computer appl... | 02/07/2006 |
| 6937331 | High-speed electromechanical shutter for imaging spectrographs The present invention presents a high-speed electromechanical shutter which has at least two rotary beam choppers that are synchronized using a phase-locked loop electronic control to reduce the duty cycle. These choppers have blade means that can comprise discs or ... | 08/30/2005 |
| 6927914 | Grism In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can be varied and a volume phase holographic (VPH) grating. More specifica... | 08/09/2005 |
| 6903815 | Optical waveguide sensor, device, system and method for glucose measurement An optical waveguide sensor for glucose measurement comprises a substrate, a first optical waveguide layer formed on a surface of the substrate, an entrance grating and an exit grating which are formed contacting with the first optical waveguide layer and being spac... | 06/07/2005 |
| 6842286 | Optical system and methods that compensate for changes in atmospheric conditions Optical systems are provided. One such optical system includes an optical source that propagates a source beam of light. A diffracting component is optically coupled to the optical source and is operative to receive the source beam and produce a diffracted beam. A t... | 01/11/2005 |
| 6839135 | Optical device An optical device includes an imaging device for imaging an incident beam onto a focal surface, and a support element which includes at least one side having a shape corresponding to the focal surface, where the side is located on the focal surface. The invention al... | 01/04/2005 |
| 6813018 | Hyperspectral imager The hyperspectral imager includes a diffraction grating, a collecting reflecting element and a reimaging system. The diffraction grating has an entrance slit formed at an entrance slit location therein. The entrance slit has a long dimension oriented in a y-directio... | 11/02/2004 |
