Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8184298 | Spatial light interference microscopy and fourier transform light scattering for cell and tissue characterization Methods and apparatus for rendering quantitative phase maps across and through transparent samples. A broadband source is employed in conjunction with an objective, Fourier optics, and a programmable two-dimensional phase modulator to obtain amplitude and phase info... | 05/22/2012 |
| 8164756 | System and method of fluid exposure and data acquisition An apparatus has a data acquisition device, an environmental cell in a spatial registration relative to the data acquisition device, the environmental cell being configured to support a sample, and a fluid management system configured to initiate and discontinue exp... | 04/24/2012 |
| 8149414 | Method and device for measuring the spectral phase or the combined spectral and spatial phases of ultra short light pulses The method and device for measuring the spectral phase or combined spectral and spatial phases of ultra short light pulses, consisting of a decomposition of the light pulse to be measured in two identical replicas called signal pulse and primary reference pulse, res... | 04/03/2012 |
| 8144331 | Systems, computer-implemented methods, and tangible computer-readable storage media for wide-field interferometry Disclosed herein are systems, computer-implemented methods, and tangible computer-readable storage media for wide field imaging interferometry. The method includes for each point in a two dimensional detector array over a field of view of an image: gathering a first... | 03/27/2012 |
| 8125644 | Magnetic field sensor with optically sensitive device and method for measuring a magnetic field An optically sensitive device includes a material that changes dimension in response to a change in a magnetic field. In an embodiment, the optically sensitive device is configured to measure a change in a magnetic field as a function of the change of dimension of t... | 02/28/2012 |
| 8120777 | Temperature-stable interferometer This invention provides an interferometric detection device configured to maintain a temperature of a sensing area to within 20 m° C. of a first target temperature and to maintain a temperature of the medium within 500 m° C. of a second target temperature The devi... | 02/21/2012 |
| 8085406 | Ultrafast microscopy of surface electromagnetic fields System(s) and method(s) to probe electromagnetic fields at the surface of a solid-state material are provided. The technique combines ultrafast (e.g., less than 10 fs) optical excitation and electron microscopy to generate electronic excitations and image the ensuin... | 12/27/2011 |
| 8077320 | Wavefront measuring method and wavefront measuring apparatus using the wavefront measuring method A wavefront measuring method includes steps of: obtaining a first transmitted-wavefront from a first image formed by transmitting beam through a substance at a first angle; obtaining a second image formed by transmitting the beam t... | 12/13/2011 |
| 8068230 | Real-time measurement of ultrashort laser pulses A real-time FROG system provides ultra fast pulse measurement and characterization. The system includes direct, integrated feedback that measures how well the system is retrieving pulses and tracking changes in the pulse train. This feedback is provided in real time... | 11/29/2011 |
| 8023117 | Establishing and maintaining focus in segmented-optic telescopes A multi-aperture interferometric optical system collects light propagating from a source of light and develops overlapping diffraction patterns on an optical detector that produces output signals for processing to automatically focus the optical system and form an i... | 09/20/2011 |
| 8023116 | Resolving quadrature fringes of interferometer signals in real time Techniques and devices for digitally resolving quadrature fringe signals from interferometers such as optical interferometers and interferometer-based sensing devices. In one implementation, two quadrature fringe signals from an interferometer which causes two signa... | 09/20/2011 |
| 7990539 | Sensor and method utilizing multiple optical interferometers Disclosed is a low-cost high-resolution compact accelerometer which utilizes multiple self-mixing optical interferometers. The device is also a micro-opto-electro-mechanical systems (MOEMS) sensor. The interferometers are used to detect acceleration as well as monit... | 08/02/2011 |
| 7986412 | Interferometric defect detection and classification Systems and methods for using common-path interferometric imaging for defect detection and classification are described. An illumination source generates and directs coherent light toward the sample. An optical imaging system collects light reflected or transmitted ... | 07/26/2011 |
| 7924426 | Information processing apparatus for interference signal processing A shape measuring apparatus for measuring the shape of a measurement target surface includes an interferometer and computer. The interferometer senses interference light formed by measurement light from the measurement target surface and reference light by a photoel... | 04/12/2011 |
| 7920269 | System and method for measuring interferences A system and method for measuring interferences are disclosed. The system is based on the concept of a composite interferometer. The sample is measured while a simultaneous compensation of the phase deviation due to the relative displacement of the optical delay com... | 04/05/2011 |
| 7911617 | Miniaturized cytometer for detecting multiple species in a sample A system for scattered light and simultaneous multi-color (e.g., greater than sixteen colors) fluorescence light detecting, and for analyzing, classifying and identifying biological particles and items of interest. A sample to be tested may be entered in a disposabl... | 03/22/2011 |
| 7880890 | MEMS michelson interferometer and method of fabrication An interferometer system includes an optical bench and at least two mirror structures, being patterned from one or more layers on the optical bench and erected to extend substantially perpendicularly to the bench to define two interferometer arms to provide a Micro-... | 02/01/2011 |
| 7872755 | Interferometer A double-biprism electron interferometer is an optical system which dramatically increases the degree of freedom of a conventional one-stage electron interferometer. The double biprism interferometer, however, is the same as the optical system of the single electron... | 01/18/2011 |
| 7864325 | Interferometer, demodulator, and splitting element An interferometer of the invention includes: a first splitting element which includes a first transparent medium and a first splitting film formed on the first transparent medium, and which splits incident light into a first split beam and a second split beam, the f... | 01/04/2011 |
| 7830523 | Nondestructive inspection of a structure including the analysis of cavity electromagnetic field response Nondestructive inspection (NDI) on a structure having a cavity includes exciting the structure with electromagnetic radiation and analyzing the cavity's electromagnetic field response to detect a state change of the structure. ... | 11/09/2010 |
| 7826060 | Direct detection of localized modulation of ion concentration on an electrode-electrolyte interface The present invention directly measures localized electrochemical processes on a planar electrode using differential interferometry. The ionic charge accumulation at the electrode-electrolyte interface may be directly measured by using differential interferometry as... | 11/02/2010 |
| 7826059 | Method and apparatus for polarization-sensitive optical coherence tomography A method and apparatus for extracting the vector optical properties of biological samples with micron-scale resolution in three dimensions, using polarization-sensitive optical coherence tomography (PS-OCT). The method measures net retardance, net fast axis, and ref... | 11/02/2010 |
| 7821642 | Method and system of device identification A medical device susceptible to identification using interference patterns for performing device identification is disclosed. A source signal may be directed from an energy source towards the surface of a device for reflection therefrom. An interference pattern may ... | 10/26/2010 |
| 7817280 | Method and system for device identification Disclosed are a method and system for performing device identification and a medical device susceptible to identification using interference patterns for performing device identification. A source signal may be directed from an energy source towards the surface of a... | 10/19/2010 |
| 7817279 | Sensing a disturbance The present invention relates to a method of sensing a disturbance along an optical link including the steps of: using a first interferometer arrangement connected to an optical source so as to generate pairs of signal copies, which signal copies of a given pair are... | 10/19/2010 |
| 7796267 | System, method and apparatus for a micromachined interferometer using optical splitting A micromachined interferometer is achieved using a half plane beam splitter. The beam splitter is optically coupled to receive an incident beam and operates to split the incident beam into two interfering beams, each propagating in a different medium. A fixed mirror... | 09/14/2010 |
| 7791731 | Partial coherence interferometer with measurement ambiguity resolution A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. A... | 09/07/2010 |
| 7787126 | Method and apparatus for conjugate quadrature interferometric detection of an immunoassay A detection system for detecting target material is provided. The system comprises a photonic structure having a reflectance-band and associated side bands; an illumination source for illuminating at a wavelength in at least one of an edge of the reflectance-band an... | 08/31/2010 |
| 7777888 | Telescope interferometric maintenance evaluation tool A system and method for testing telescope optics are disclosed. The telescope optics can be testing in-situ, thus more accurately revealing the as-used optical conditions. The optical conditions are input to a test system which, by objective analysis, reveals a cond... | 08/17/2010 |
| 7760362 | Telescope interferometric maintenance evaluation tool A system and method for testing telescope optics are disclosed. The telescope optics can be testing in-situ, thus more accurately revealing the as-used optical conditions. The optical conditions are input to a test system which, by objective analysis, reveals a cond... | 07/20/2010 |
| 7755766 | Telescope interferometric maintenance evaluation tool A system and method for testing telescope optics are disclosed. The telescope optics can be testing in-situ, thus more accurately revealing the as-used optical conditions. The optical conditions are input to a test system which, by objective analysis, reveals a cond... | 07/13/2010 |
| 7755765 | Method and apparatus for inertial sensing via measurement of trapped orbit dynamics An inertial sensor consisting of an electrodynamic trap for suspending one or more charged particles and a readout device for measuring variations in the position or motion of the particles when the trap is subjected to acceleration forces. Particle may be measured ... | 07/13/2010 |
| 7728981 | Device for measuring the profile of very short single pulses A device for measuring the profile of single optical pulses includes an optical fiber loop (1, F) for creating a series of replica pulses (Ri) of the initial optical pulse, starting from the initial optical pulse (I), an automatic gain control (2, 3, 4... | 06/01/2010 |
| 7710573 | Device and method for the non-invasive detection and measurement of the properties of a medium The invention relates to a device useful for non-invasive detection of the properties of a medium by means of interferometry. The device comprises an optical source which is used for illuminating a zone of the medium that is to be probed with a light beam, and an in... | 05/04/2010 |
| 7663761 | Beam analyzing system and method for analyzing pulsed particle or laser beams The present invention relates to a beam analyzing system and a method for analyzing pulsed particle or laser beams. The inventive beam analyzing system comprises a detector unit, a unit for generating a pulsed reference laser beam, a first electro-optical modulator ... | 02/16/2010 |
| 7643147 | Method and system for device identification A method and system for performing device identification is disclosed. A source signal may be directed from an energy source towards the surface of a device for reflection therefrom. An interference pattern may be detected from the surface of the device, such as by ... | 01/05/2010 |
| 7633623 | Optical tomography system Light emitted from the light source unit is divided into measuring light and reference light. An optical path length of the measuring light or the reference light which has been divided by the light dividing means is adjusted. Interference light of the reflected lig... | 12/15/2009 |
| 7633624 | Self compensating cube corner interferometer A Michelson interferometer has transversely arranged arms defining first and second transverse optical axes of the interferometer. The interferometer includes a beamsplitter for receiving an incoming ray, and transmitting an output ray. The beamsplitter is configure... | 12/15/2009 |
| 7616318 | Apparatus for measuring waveform of optical electric field, optical transmission apparatus connected thereto and a method for producing the optical transmission apparatus An electric field waveform of an optical signal is precisely measured with high time resolution. Particularly, determination of inter-symbol interference has been difficult. Output light from the laser source is divided into first and second portions. The first port... | 11/10/2009 |
| 7599067 | Ultra-short optical pulse measurement using a thick nonlinear crystal The invention provides a pulse measurement apparatus and corresponding method. The apparatus comprises: a splitter for splitting a pulse to be measured into two sub-pulses propagating along different beam paths; a non-linear medium, capable of up-conversion of radia... | 10/06/2009 |
