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| Number | Title | Issue Date |
| 7428099 | Optical security system using fourier plane encoding A method of verifying the authenticity of an object is disclosed. The method may include encoding a primary image, convolving the encoded primary image with a random code, generating thereby a first reference image, transforming the first reference image, and correl... | 09/23/2008 |
| 7347570 | Multimedia presentation apparatus and method A multimedia presentation apparatus and method by which a presenter is freed from the requirement of having or providing or transporting a supporting computer system such as the notebook or laptop system by the incorporation of computing capability and an accessible... | 03/25/2008 |
| 7317814 | Authentication system and method An authentication system using a correlator that correlates an input with a reference wherein at least one of the input and reference comprises a phase volume mask having structures, preferably points, that are each less than about six microns in size and can have a... | 01/08/2008 |
| 7302100 | Method for increasing detectable light energy without changing shape content in radial and angular or rotational analysis of images for shape content and matching A segmented radial spatial light modulator has an active optic area comprising a plurality of radially extending active optic modulators disposed at various angular orientations with respect to a central axis. The segmented radial spatial light modulator is used in ... | 11/27/2007 |
| 7295742 | Optical element and method for producing the same An optical element is provided that includes a base substrate, a waveguide substrate, and a thin film layer that is provided between the base substrate and the waveguide substrate and that has a single-layer structure of a multilayer structure including a film conta... | 11/13/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7224905 | Remotely-interrogated high data rate free space laser communications link A system and method of remotely extracting information from a communications station by interrogation with a low power beam. Nonlinear phase conjugation of the low power beam results in a high power encoded return beam that automatically tracks the input beam and is... | 05/29/2007 |
| 7221495 | Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ... | 05/22/2007 |
| 7212630 | Method and apparatus for encryption using partial information A method and apparatus of encrypting optical images using binarization or phase only information is presented with a number of ways to secure the image also being provided. An image to be encrypted is first multiplied by a random phase function. The Fourier transfor... | 05/01/2007 |
| 7197248 | Adaptive correction of wave-front phase distortions in a free-space laser communication system and method An adaptive free-space laser communication system and a method of communication between laser communication transceivers of the system. Communication channel condition information communicated via laser beams transmitted between a first laser communication transceiv... | 03/27/2007 |
| 7180672 | Optical substrate and method of making An optical surface substrate. The optical substrate features a three-dimensional surface. The optical substrate is defined by a first surface structure function modulated by a second surface structure function, the first surface structure function producing at least... | 02/20/2007 |
| 7177081 | High contrast grating light valve type device A grating light valve has with a plurality of spaced reflective ribbons are spatially arranged over a substrate with reflective surfaces. The grating light valve is configured to optimized the conditions for constructive and destructive interference with an incident... | 02/13/2007 |
| 7164520 | Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul... | 01/16/2007 |
| 7145654 | Method and apparatus to reduce spotsize in an optical metrology instrument The measurement spot size of small-spot reflectometers, ellipsometers, and similar instruments can be reduced by placing an optical fiber along the optical path of the instrument, such as between an illumination source and a sample or the sample and a detector. The ... | 12/05/2006 |
| 7136171 | Method for the extraction of image features caused by structure light using template information A method for use with a non-contact range finding and measurement system for generating a template guide representative of the surface of a observed object, and for utilizing the template guide to improve laser stripe signal to noise ratios and to compensate for cor... | 11/14/2006 |
| 7130292 | Optical processor enhanced receiver architecture (opera) A method and apparatus for enhancing the receiving and information identification functions of multiple access communications systems by employing one or more optical processors configured as a bank of 1-D correlators. The present invention is particularly useful in... | 10/31/2006 |
| 7129095 | Method and system for using a weighted response The present invention is related to the sensing of analytes and in particular, to methods of determining, resolving, identifying, or quantitating such analytes once detected. This invention provides systems and methods for identifying analytes, comprising using an i... | 10/31/2006 |
| 7130092 | Apparatus and method for recording and reproducing optical information An optical information recording/reproducing apparatus generates information light by modulating light emitted by a light source device with a light modulator depending on the information to be recorded and generates reference light for recording by modulating the l... | 10/31/2006 |
| 7119941 | Input output matching in optical processing The invention relates to determining a matching between discrete optical elements, such as an SLM and a CCD, and continuous optical systems, subsystems and/or elements, such as Fourier lens and individual lenslet of lenslet arrays. Exemplary processing performed by ... | 10/10/2006 |
| 7116359 | Image capture device and method of controlling blur in captured images An image acquired by an image sensor is recorded, and the blur amount of the recorded image is changed in accordance with a blur amount determined beforehand. ... | 10/03/2006 |
| 7103223 | Apparatus and method for radial and angular or rotational analysis or images for shape content and matching A segmented radial spatial light modulator has an active optic area comprising a plurality of radially extending active optic modulators disposed at various angular orientations with respect to a central axis. The segmented radial spatial light modulator is used in ... | 09/05/2006 |
| 7095540 | Optical security system using fourier plane encoding A method of verifying the authenticity of an object is presented. The method comprises providing a primary image; providing a secondary image; encoding the primary image; providing a random code; convolving the encoded primary image with the random code, providing t... | 08/22/2006 |
| 7085026 | Apparatus and method for recording and reproducing optical information The present invention makes it possible to reduce the size of an optical system for multiplex recording or reproduction of information utilizing holography. A pick-up of an optical information recording/reproducing apparatus generates information light by spa... | 08/01/2006 |
| 7085025 | Apparatus for recording optical information Optical information is stored in an optical information recording medium having an information recording layer utilizing holography with an optical information recording apparatus which includes security features. An input device is used to input individual informat... | 08/01/2006 |
| 7068372 | MEMS interferometer-based reconfigurable optical add-and-drop multiplexor The interferometer comprises a beam splitter, a mirror and a phase modulator. The beam splitter splits a signal into a first portion and a second portion. The mirror reflects the first portion. The first portion includes an optical path length, which is fixed. The p... | 06/27/2006 |
| 7057819 | High contrast tilting ribbon blazed grating The light modulator includes elongated elements and a support structure coupled to the elongated elements. Each element includes one or more lengthwise slits within an active optical area, and a light reflective planar surface with the light reflective planar surfac... | 06/06/2006 |
| 7054515 | Diffractive light modulator-based dynamic equalizer with integrated spectral monitor An integrated device of the present invention comprises free-space optics, a bi-directional multiplexor/de-multiplexor, a diffractive light modulator, a beam splitter, an optical performance monitor, and a controller. The free-space optics collimate, transform and i... | 05/30/2006 |
| 7050635 | Multi-dimensional pattern recognition by use of digital holography A method and system for performing three-dimensional pattern recognition by use of digital holography is disclosed. The complex amplitude distribution generated by an object is recorded by phase-shifting interferometry. The digital hologram contains information abou... | 05/23/2006 |
| 7049164 | Microelectronic mechanical system and methods The current invention provides for encapsulated release structures, intermediates thereof and methods for their fabrication. The multi-layer structure has a capping layer, that preferably comprises silicon oxide and/or silicon nitride, and which is formed over an et... | 05/23/2006 |
| 7046352 | Surface inspection system and method using summed light analysis of an inspection surface The present invention discloses methods of conducting surface inspections using summed light. One method includes the steps of measuring summed light intensity values for the substrate, generating comparison values for the substrate, and then comparing the measured ... | 05/16/2006 |
| 7046279 | Image taking apparatus An image taking apparatus includes an image sensor which picks up an image of a photographic object and a selector which selects a first photographing mode or a second photographing mode and a controller. The second photographing mode is a mode for composing a plura... | 05/16/2006 |
| 7042611 | Pre-deflected bias ribbons A modulator for and a method of modulating an incident beam of light including means for supporting a plurality of active elements and a plurality of bias elements, each active and bias element including a light reflective planar surface with the light reflective pl... | 05/09/2006 |
| 7027202 | Silicon substrate as a light modulator sacrificial layer An optical MEM device is fabricated with a patterned device layer formed on a silicon wafer. Preferably, the patterned device layer is patterned with plurality of ribbons and/or access trenches. The central portion of the ribbon is released from the silicon wafer us... | 04/11/2006 |
| 7012552 | Civil aviation passive coherent location system and method A civil aviation passive coherent location system and method is disclosed. A receiver subsystem receives reference transmissions from an uncontrolled transmitter. The receiver subsystem also receives scattered transmissions originating from the uncontrolled transmit... | 03/14/2006 |
| 6999165 | Method and apparatus for radiation analysis and encoder Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line. ... | 02/14/2006 |
| 6995882 | Apparatus for recording optical information The present invention makes it possible to reduce the size of an optical system for multiplex recording or reproduction of information utilizing holography. A pick-up (11) of an optical information recording/reproducing apparatus generates information ... | 02/07/2006 |
| 6975755 | Image processing method and apparatus An apparatus (2) for matching features in images of objects taken from different viewpoints is provided comprising: an image buffer (60) for receiving image data; and output buffer (62) for outputting pairs of matched features and processing mea... | 12/13/2005 |
| 6963388 | Focus adjustment apparatus, control method therefor, and medium for supplying control program therefor This invention provides an apparatus such as a focus adjustment apparatus capable appropriately adjusting focusing in accordance with chromatic aberration, a control method therefor, and a medium such as a storage medium for supplying a control program therefor. An ... | 11/08/2005 |
| 6956878 | Method and apparatus for reducing laser speckle using polarization averaging A method and apparatus for reducing speckle uses polarization averaging. A polarizing beam splitter divides a first polarized laser output into a second polarized laser output and a third polarized laser output. A plurality of mirrors creates an optical path differe... | 10/18/2005 |
| 6956995 | Optical communication arrangement An arrangement for optical communication comprises an optical coupler, an opto-electronic board, and an optical fiber. The optical fiber comprises a first refraction surface, a second refraction surface, and an internal reflector. The first refraction surface has a ... | 10/18/2005 |
