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| Number | Title | Issue Date |
| 7365842 | Light scanning type confocal microscope A light scanning type confocal microscope includes a light source unit that projects an excitation light beam, a scanning optical system that scans the excitation light beam, an objective lens that applies the excitation light beam to a sample, a separation optical ... | 04/29/2008 |
| 7365328 | Dispersive near-infrared spectrometer with automatic wavelength calibration A dispersive, diffraction grating, NIR spectrometer that automatically calibrates the wavelength scale of the instrument without the need for external wavelength calibration materials is shown. The device shows: 1) a low power He—Ne laser at right angles to the so... | 04/29/2008 |
| 7365845 | Optical spectrum analyzer An optical spectrum analyzer measures to-be-measured light while carrying out calibration processing for correcting wavelength information of spectrum data of the to-be-measured light by a wavelength information correction device through a storage device based on th... | 04/29/2008 |
| 7339154 | Level detector A level detector includes a light receiving element unit having a plurality of light receiving elements; a first amplifier circuit configured to amplify a light receiving signal; a first gain switching circuit; a first peak hold circuit; an arithmetic control device... | 03/04/2008 |
| 7336357 | Multi-channel dual phase lock-in optical spectrometer The development of a multiple-channel dual phase lock-in optical spectrometer (LIOS) is presented, which enables parallel phase-sensitive detection at the output of an optical spectrometer. The light intensity from a spectrally broad source is modulated at the refer... | 02/26/2008 |
| 7321425 | Sensor and methods for measuring select components in sheetmaking systems A sensor for measuring at least selected component in a composition can include: (a) a broadband light source, (b) an acousto-optic tunable filter (AOTF), (c) means for generating a beam of light from the light source and directing the beam of light at the AOTF wher... | 01/22/2008 |
| 7262910 | Illuminating device and optical object-analyzing device An illuminating device (10). In one embodiment, the illuminating device includes a light source (12), optical components (16, 18, 20) that define a plurality of light paths (14) originating from the light source, a light-conditioning arra... | 08/28/2007 |
| 7259904 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 08/21/2007 |
| 7253897 | Optical spectrum analyzer An optical spectrum analyzer (OSA) 10 sequentially or selectively samples (or filters) a spectral band(s) 11 of light from a broadband optical input signal 12 and measures predetermined optical parameters of the optical signal (e.g., spectral pr... | 08/07/2007 |
| 7251028 | Scanning spectrum analyzer A system for spectral analysis of a multi-wavelength signal is disclosed. The illustrative embodiment of the present invention, like the prior art, uses a grating or prism to disperse the spectral components of a multi-wavelength signal, and then uses a reciprocatin... | 07/31/2007 |
| 7238942 | Spectrometric using broadband filters with overlapping spectral ranges The invention provides a spectrometer (10) which includes a filter arrangement (16,18), in addition to any option filters (20) for limiting an operational wavelength range of the spectrometer, the filter arrangement (16,18) comprising a p... | 07/03/2007 |
| 7233739 | Optical bit stream reader system An all optical fiber bit stream reader system for examining the data contents of an optical fiber involving the conversion of a temporal timing signal into a spatially located signal is provided. The invention generally comprises generating and detecting a signal in... | 06/19/2007 |
| 7233394 | Compact spectrometer The present invention is directed to method and apparatus for measuring the spectral characteristics of an object from a formed object generated input signal. The method comprises the steps of directing the input signal onto a diffraction grating. Diffracted signals... | 06/19/2007 |
| 7220974 | Fluorescence detection apparatus and method for excitation light irradiation timing A fluorescence detection apparatus irradiates a sample with an excitation light having different wavelengths, spectrally detects fluorescence from the sample, and includes: a comparison unit for comparing the wavelength of the excitation light with the starting wave... | 05/22/2007 |
| 7216045 | Selection of wavelengths for integrated circuit optical metrology Specific wavelengths to use in optical metrology of an integrated circuit can be selected using one or more selection criteria and termination criteria. Wavelengths are selected using the selection criteria, and the selection of wavelengths is iterated until the ter... | 05/08/2007 |
| 7212285 | Optical measurement device An optical measurement device capable of improving optical spectrum measurement accuracy without the need to structurally decrease a slit width. A diffraction grating for dispersing measurement light into respective different wavelengths is rotated in a given direct... | 05/01/2007 |
| 7209230 | Hand-held spectra-reflectometer The present invention is directed to apparatus and method for measuring the spectral characteristics of an object surface. The apparatus comprises a light source for generating an input signal comprising a plurality of wavelengths of energy and a diffraction grating... | 04/24/2007 |
| 7202956 | Translation mechanism for opto-mechanical inspection An apparatus is disclosed for moving an optical component of an opto-mechanical inspection system relative to an object to be inspected using a linear actuator comprising a coil located in a magnetic field created by a magnet assembly. A translation stage is coupled... | 04/10/2007 |
| 7193705 | Method for determining atomic isotope masses A method for determining atomic isotope masses in mass spectrometry, atomic isotope ratios being determined from molecular isotope ratios measured by means of an isotope mass spectrometer—ion correction, the determination of the atomic ratios being carried out by ... | 03/20/2007 |
| 7193701 | Gray optical standard A system for providing and using a gray optical standard is disclosed, the standard generally comprising a housing having a cavity and an at least partially transparent portion adjacent to the cavity for receiving the radiation emitted radiation by an optical instru... | 03/20/2007 |
| 7183945 | Method and system for video capture of vehicle information A system for collecting and managing information relating to vehicles includes a digital image collection system positioned to capture an image of a vehicle travelling along a roadway. The captured images are delivered to a computer program memory via a communicatio... | 02/27/2007 |
| 7174198 | Non-invasive detection of analytes in a complex matrix A system and method for determining the concentration of analytes of interest in complex matrices is provided. According to one aspect of the present invention, near-infrared analytical radiation is generally directed onto a portion of a specimen containing the anal... | 02/06/2007 |
| 7167292 | Spectroscope and confocal scanning microscope comprising thereof The invention provides a spectroscope that provides variable masks 24a and 24b that limits the light path of separated light beams in the spectrum direction and composite masks 24c and 24d that limit the same i... | 01/23/2007 |
| 7167239 | Spectroscope and measuring apparatus using the same Disclosed is a spectroscope and a measuring apparatus using the same. The spectroscope according to an aspect of the present invention includes a light source, a spectroscopic member for dispersing light from the light source in accordance with wavelength, a slit me... | 01/23/2007 |
| 7133140 | Apparatus and measurement procedure for the fast, quantitative, non-contact topographic investigation of semiconductor wafers and other mirror like surfaces Apparatus and process for fast, quantitative, non-contact topographic investigation of samples. Apparatus includes a light source, and a collimating concave mirror structured and arranged to produce a parallel beam and to direct the parallel beam to a sample to be i... | 11/07/2006 |
| 7126384 | Peak detection circuit with double peak detection stages A peak detection circuit with double peak detection stages includes an analog peak detector, an analog-to-digital converter (ADC), and a digital peak detector. The analog peak detector receives an analog input signal, detects a peak value of the analog input signal ... | 10/24/2006 |
| 7099003 | Spectroscopic systems and methods The present invention relates to spectroscopic methods and systems for collecting electromagnetic radiation from an object using a continuously-spinning wavelength-selecting (CSWS) device, e.g., an interference filter(s) or grating. One embodiment of the invention p... | 08/29/2006 |
| 7092089 | Method and system for chemical or biochemical analysis of a target analyte in a target environment This invention relates to a practical low cost method and devices which exploits the benefits of several photo-assisted analytical techniques involving controlled light sources. The method comprise the use of a program controlled display (like computer, mobile telep... | 08/15/2006 |
| 7067819 | Systems and methods for measurement or analysis of a specimen using separated spectral peaks in light A system configured for measurement of a specimen is provided. The system includes an optical subsystem configured to perform measurements of the specimen. The optical subsystem includes a light source that is configured to generate light having a relatively large n... | 06/27/2006 |
| 7034936 | Spectrometer The present invention is based on the knowledge that the advantages of a moveable dispersive element with regard to the simple detector element and the adjustability of the measurement range and the resolution can also be used in a miniaturization of a spectrometer,... | 04/25/2006 |
| 7023548 | Photoelectric measuring device A device for the density or colorimetric measurement of a measured object, i.e., a densitometer or colorimeter, comprising a light source for directing measurement light onto an object to be measured, a polarization filter positioned between the light source and the... | 04/04/2006 |
| 7006765 | Optical network monitor An optical network monitor and a method for monitoring the optical signals of an optical network including a spectrograph that includes a detector array, a processor and outputs. The network monitor receives an optical input signal which includes individual channels... | 02/28/2006 |
| 7002680 | Method and apparatus for measuring waveforms and wavelengths of optical signals A method and apparatus for measuring characteristics of a single-wavelength optical signal constituting part of a wavelength division multiplexed (WDM) optical signal is provided. The WDM optical signal is adjustably diffracted to select the single-wavelength optica... | 02/21/2006 |
| 6999169 | Spectrometer The present invention is intended to realize a spectrometer which improves the wavelength resolution without being affected by the pitch of the photodiode array. The present invention is characterized by a spectrometer which comprises a wavelength dispersion ... | 02/14/2006 |
| 6993257 | Optical channel monitor utilizing multiple Fabry-Perot filter pass-bands An optical channel monitor is described, the optical channel monitor includes an optical input port, a photodetector disposed in an optical path communicating at least intermittently with the optical input port, an optical filter disposed in the optical path between... | 01/31/2006 |
| 6977724 | Method for spectral analysis, and scanning microscope A method for spectral analysis of the light proceeding from a specimen using a multi-band detector comprises the steps of defining an overall spectral region; from the overall spectral region, defining a first spectral subregion and defining at least a second spectr... | 12/20/2005 |
| 6973233 | Variable-wavelength optical output device In a wavelength-variable light outputting apparatus, a diffraction grating 8 and a shielding member 11 which make wavelength and light quantity variable are attached to galvanometric scanners 12, 13, respectively, and the latter are swung, where... | 12/06/2005 |
| 6972839 | Optical spectrum analyzer and optical spectrum detecting method In an optical spectrum analyzer comprising a spectrograph and a photodevice array, and an optical spectrum detecting method, a wavelength deviation, from an assigned wavelength, of a light detected by a photodevice array which detects a wavelength of a diffraction l... | 12/06/2005 |
| 6952641 | Software architecture of an integrated host system for sensed vehicle data A system for processing sensed vehicle data includes a sensor for sensing data related to at least one characteristic of a passing vehicle and a host unit that receives sensed data from the sensor. The sensor and the host unit are integrated into a single housing. T... | 10/04/2005 |
| 6934025 | Thin film optical measurement system and method with calibrating ellipsometer An optical measurement system for evaluating a reference sample, having at least a partially known composition, includes a reference ellipsometer and at least one non-contact optical measurement device. The ellipsometer includes a light generator, an analyzer, and a... | 08/23/2005 |
