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| Number | Title | Issue Date |
| 8168939 | Method and system for a light source assembly supporting direct coupling to an integrated circuit Methods and systems for a light source assembly supporting direct coupling to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip are disclosed. The assembly may include a laser, a microlens, a turning mirror, reciprocal and/or non-reciprocal ... | 05/01/2012 |
| 8080777 | Optical device and optical system Provided is an optical device, comprising a plurality of polarizers that are arranged along a propagation direction of incident light; a first phase element that is disposed between the plurality of polarizers and that has a phase lag axis forming a prescribed angle... | 12/20/2011 |
| 8058608 | Device for imaging scenes with very large ranges of intensity A device for imaging scenes with a very large range of intensity having a pair of polarizers, a primary lens, an attenuating mask, and an imaging device optically connected along an optical axis. Preferably, a secondary lens, positioned between the attenuating mask ... | 11/15/2011 |
| 8049158 | Photonic proximity sensor and scalable photonic sensing system A photonic proximity sensor and photonic sensor system are provided. The photonic proximity sensor includes a first light source, a second light source, and a magneto-optic device. The magneto-optic device receives light emitted from the first and second light sourc... | 11/01/2011 |
| 7964840 | High dynamic range image sensor including polarizer and microlens An image sensor includes a plurality of pixels, each pixel includes a first photosensitive region that collects charge in response to light and having a first sensitivity; a second photosensitive region that collects charge in response to light and having a second s... | 06/21/2011 |
| 7960682 | Display device control based on integrated ambient light detection and lighting source characteristics Systems and methods are provided for a display device including one or more methods for modifying the display brightness by automatically adapting to ambient lighting conditions. ... | 06/14/2011 |
| 7928356 | Quantum sensor miniaturization utilizing entangled photon signals The resolution obtained by an imaging system utilizing separable photons can be achieved by an imaging system making use of entangled photons. Since resolution is not being increased from the separable-photon system, the imaging system utilizing entangled photons ca... | 04/19/2011 |
| 7847234 | Method and system for observing a subject at a first location based upon quantum properties measured at a second location A preferred embodiment comprises a method and system for (a) detecting objects or targets which may or may not be nonreflective to electromagnetic radiation, and/or (b) generating an image of a subject or area, comprising generating an entangled photon pair beam; sp... | 12/07/2010 |
| 7816640 | Polarization beam splitter and projection apparatus having the same The present invention provides a polarization beam splitter including a multilayer film formed by laminating a first layer having a refractive index in a first range, a second layer having a refractive index in a second range which does not overlap the first range, ... | 10/19/2010 |
| 7745777 | Active imaging system that recaptures and processes a reflected illumination beam In accordance with yet another aspect of the present invention, an active imaging system is provided for imaging a target of interest. An imaging assembly includes a light source and an optical assembly comprising a plurality of passive optical components. The optic... | 06/29/2010 |
| 7745778 | Elliptical polarizers, tags and identification systems using frequency selective surfaces An identification system and associated method for identifying objects includes at least one tag having encoded information attached to the surface of an object to be identified, wherein the tag includes a first FSS-based elliptical polarization filter which provide... | 06/29/2010 |
| 7723670 | Optical differential group delay module with folded optical path Differential group delay (DGD) devices and techniques based on folded optical paths. An in-line polarization monitor can be provided as a feedback for worst-case alignment without using an in-line polarizer. Polarization maintaining retro reflectors can minimize the... | 05/25/2010 |
| 7655898 | Optical filter assembly with selectable bandwidth and rejection An optical filter assembly having selectable bandwidth is presented. The optical filter assembly includes a first optical filter, a first optical retarder with optical retardance R1, a second optical retarder with optical retardance R2, a polarization ... | 02/02/2010 |
| 7629569 | Elliptical polarizers, tags and identification systems using frequency selective surfaces An optical combination includes a substrate, a linear polarizer on the substrate, and a first frequency selective surface (FSS) based elliptical polarization filter on the linear polarizer. The first FSS comprises at least one periodic pattern of spaced apart electr... | 12/08/2009 |
| 7586083 | Laser sensor apparatus and method for detecting transmission shaft torque Presented herein is a non-contact torque sensing apparatus and method for measuring the instantaneous torque, or torsional stress/strain, transmitted through an elongated power transmission member such as a rotatable shaft. Polarized light is directed along a measur... | 09/08/2009 |
| 7582857 | Sensor and polarimetric filters for real-time extraction of polarimetric information at the focal plane A polarimetric imaging system employs a pixel pitch matched filter for use within, for example, a 2 by 2 pixel neighborhood, in which one pixel samples the scene via a 0 degree polarization filter and a second pixel samples the scene via a 45 degree polarization fil... | 09/01/2009 |
| 7576313 | Light source device and image display device A light source device includes at least two light emitting parts which emit light; and a polarization separating part which transmits polarized light in a first vibrating direction of the lights from the light emitting part, and reflects polarized light in a second ... | 08/18/2009 |
| 7534990 | Compact optical delay devices Optical devices and techniques for using optical polarization of light to transmit through an optical path four times to quadruple a total delay in the light through the optical path. ... | 05/19/2009 |
| 7528360 | Method and device for stabilizing the state of polarization of optical radiation A polarization stabilizing device and method based on controlling the phase retardations of a pair of variable rotators with an optically interposed quarter-wave plate, with a controller such that the first of the variable rotators has its phase retardation switched... | 05/05/2009 |
| 7482573 | Optical head, optical reproduction apparatus and optical record and reproduction apparatus Beams of light emitted from a light source are incident on a polarizer. The direction of a transmission axis of the polarizer can be adjusted in advance such that the polarizer transmits P polarized light, and S polarized light is attenuated. Beams of light transmit... | 01/27/2009 |
| 7449672 | Conversion of quantum information from one photonic representation to another photonic representation Systems and methods convert or transfer quantum information from one photonic representation or state to another. This permits conversion of quantum information from one encoding to another and to representations that are convenient, efficient, or required for desir... | 11/11/2008 |
| 7411675 | Optical rotation angle measuring apparatus A linearly polarized light output unit (701) outputs a linearly polarized light. A first phase modulation unit (703) includes a first polarization axis and modulates a phase of the linearly polarized light. A second phase modulation unit (704) i... | 08/12/2008 |
| 7405883 | Optical component and method of manufacture of optical component An optical component or optical low-pass filter has two or more regions demarcated by differences in refractive indexes, in which a region having a refractive index different from the refractive index of the continuous region with the largest volume among the two or... | 07/29/2008 |
| 7391013 | Scanning beam device with detector assembly The present invention provides scanning beam devices that have one or more detectors positioned within a housing of the device. The detector(s) may be disposed anywhere within the housing to receive light reflected from the target area. In one embodiment, an optical... | 06/24/2008 |
| 7375889 | Apparatus and method for controlling polarization in an optical communications medium A method for resetting a polarization controller includes determining that the phase magnitude is associated with a first range of phase angles and generating a first control signal having a first characteristic if the phase magnitude is increasing, and generating t... | 05/20/2008 |
| 7372565 | Spectrometer measurement of diffracting structures A normal incidence reflectometer includes a rotatable analyzer/polarizer for measurement of a diffracting structure. Relative rotation of the analyzer/polarizer with respect to the diffracting structure permits analysis of the diffracted radiation at multiple polari... | 05/13/2008 |
| 7373059 | Compact, single chip-based, entangled polarization-state photon sources and methods for generating photons in entangled polarization states Various embodiments of the present invention are directed to compact systems for generating polarization-entangled photons. In one embodiment of the present invention, a polarization entangled-photon state source comprises a single transmission layer configured for ... | 05/13/2008 |
| 7369234 | Method of performing optical measurement on a sample The invention relates to a method of performing an optical measurement on a sample, such as an ellipticity measurement. The sample is irradiated with a polarized irradiation beam and a return beam is linearly polarized. The irradiation or return beam is modulated wi... | 05/06/2008 |
| 7365533 | Magneto-optic remote sensor for angular rotation, linear displacements, and evaluation of surface deformations A system and method to detect angular rotation, linear displacement and/or surface deformations is presented. The method is based on the ability of a linear polarized light to interact with magnetic materials and to change its polarization angle due to Faraday effec... | 04/29/2008 |
| 7362977 | Method for reduction of non-linear intra-channel distortions A method for reducing intra-channel, non-linear distortions of an optical signal resulting from non-linear fiber propagation includes applying a polarization mode dispersion (PMD) pre-distortion to an optical signal such that the PMD pre-distortion produces two repl... | 04/22/2008 |
| 7361884 | Polarization independent optical isolator and optical transmitting/receiving apparatus A polarization independent optical isolator includes: a first birefringent plate that divides the receiver light from the optical transmission path into normal light and abnormal light to output the normal light and the abnormal light; a second birefringent plate th... | 04/22/2008 |
| 7358470 | Optical pickup An optical pickup with a reflective coating device is provided, including a laser diode (LD), an optical element, and a photo detector integrated circuit (PDIC). The LD emits 1-3 lights with different wavelengths but the same polarization orientation. The beam trans... | 04/15/2008 |
| 7359586 | Fiber optic strain sensor and associated data acquisition system A fiber optic polarimetric strain sensor and associated data acquisition system capable of all-optical measurements of physical parameters, such as structural strain, gas and liquid pressure, acceleration and vibration, gas and liquid flow rate, and force without fi... | 04/15/2008 |
| 7353770 | Visual wear indicator for footwear A visual wear indicator is disclosed capable of giving a visual indication of the degree of wear on an athletic or other type of shoe. In general, the visual wear indicator may operate by having two different colored regions, each having a viscosity which varies a f... | 04/08/2008 |
| 7355708 | Normal incidence rotating compensator ellipsometer A normal incidence rotating compensator ellipsometer includes an illumination source that produces a broadband probe beam. The probe beam is redirected by a beam splitter to be normally incident on a sample under test. Before reaching the sample, the probe beam is p... | 04/08/2008 |
| 7349158 | Diffraction grating-based encoded micro-particles for multiplexed experiments Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected... | 03/25/2008 |
| 7347817 | Polarized in vivo imaging device, system and method An autonomous in vivo sensing device may include a polarizing filter to polarize light emitted by an illumination unit, and to block light specularly reflected from a turbid media from reaching an imager of such device. An autonomous in vivo sensing device with mono... | 03/25/2008 |
| 7343231 | Computerized simultaneous laser marking and targeting system The complete automation of a remote marking process. It is completely computer controlled and made possible by laser printer type marking/pointer equipment. The concept of embedding digital information into a laser beam or other coherent information vector and attac... | 03/11/2008 |
| 7339156 | Method of creating a color profile for color measurement system A method of creating a color profile. The method includes measuring the color of a first object to create a first measurement; measuring the color of a second object to create a second measurement; and generating a color profile from the first measurement and the se... | 03/04/2008 |
| 7336361 | Spectroscopic ellipsometer and polarimeter systems A spectroscopic ellipsometer or polarimeter system having a source of a polychromatic beam of electromagnetic radiation, a polarizer, a stage for supporting a material system, an analyzer, a dispersive optics and a detector system which comprises a multiplicity of d... | 02/26/2008 |
