Articles from PatFT, AppFT

1. Method of determining a property of a fluid and spectroscopic system

   PatFT, AppFT (Nov 18 2008) Patents Explore Article

   A property of a fluid is determined spectroscopically, such as for the purposes of in vivo blood analysis. First the position of a volume of interest through which the fluid flows is determined by an optical detection step by making use of an objective. Preferably the optical detection step is an imaging step. Next the objective is moved to bring the focal point of the objective into coincidence with the ... (Read Full Article)
   

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2. Scanning ophthalmic fixation method and apparatus

   PatFT, AppFT (Nov 18 2008) Ophthalmology , Patents Explore Article

   An apparatus and method for treating and/or diagnosing a patient's eye. A light source produces fixation light and procedure light. A scanning device deflects the fixation light to produce a fixation pattern of the fixation light on the eye, and deflects the procedure light to produce a procedure pattern of the procedure light on the eye. A controller controls the scanning device such that the fixation and procedure patterns move ... (Read Full Article)
   

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3. Image adjustment derived from optical imaging measurement data

   PatFT, AppFT (Nov 18 2008) Ophthalmology , Patents Explore Article

   A method and apparatus for imaging within the eye is provided whereby a component of eye position is detected using optical imaging data. Tracking eye position over time and correctly registering imaging data for scan locations or using eye position to detect decentration achieves improved imaging. In one embodiment, essentially perpendicular B-scans are imaged sequentially and the corneal arc within each B-scan is analyzed to determine the vertex of the ... (Read Full Article)
   

   Comment on Article Mentions:   Scott Meyer   Carl Zeiss Meditec

4. Laser system using ultrashort laser pulses

   PatFT, AppFT (Nov 11 2008) Patents Explore Article

   A laser system using ultrashort laser pulses is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention employs a femtosecond laser and a spectrometer. Still another aspect of the present invention uses a laser beam pulse, a pulse shaper and a SHG crystal. In yet another aspect of the present invention, a multiphoton intrapulse ... (Read Full Article)
   

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5. Full circumferential scanning OCT intravascular imaging probe based on scanning MEMS mirror

   PatFT, AppFT (Nov 11 2008) Cardiology , Endoscopy , Patents Explore Article

   An optical coherence tomography (OCT) imaging probe 500 comprises a reference arm, and a sample arm which are both preferably disposed in a hollow outer tube 515. The sample arm comprises a MEMS scanning mirror 210 disposed inside and secured to the tube 515 for providing lateral scanning of a first and second optical beam provided. The scanning mirror has a highly reflective top 211 and highly reflective bottom surface ... (Read Full Article)
   

   Comment on Article Mentions:   University of Florida

6. Volumetric endoscopic coherence microscopy using a coherent fiber bundle

   PatFT, AppFT (Nov 11 2008) Endoscopy , Microscopy , Patents Explore Article

   Methods for employing coherent bundles of optical fibers, whether single- or multi-mode, for optical coherence tomography or optical coherence microscopy. Either a substantially monochromatic source or a broadband source is spatially decohered and/or spatially filtered prior to coupling into the fiber bundle for illumination of a sample. A scatter signal from features disposed beneath the surface of the sample is interfered with a reference signal derived, at either end of ... (Read Full Article)
   

   Comment on Article Mentions:   Stephen A. Boppart   University of Illinois at Urbana-Champaign   Daniel L. Marks

7. Optical tomography apparatus

   PatFT, AppFT (Nov 11 2008) Patents Explore Article

   Low coherence light having a central wavelength .lamda.c of 1.1 .mu.m and a full width at half maximum spectrum .DELTA..lamda. of 90 nm is emitted. The low coherence light has wavelength properties suited for the light absorbing properties, the diffusion properties, and the dispersion properties of living tissue. A light dividing means divides the low coherence light into a measuring light beam, which is irradiated onto a measurement target via ... (Read Full Article)
   

   Comment on Article Mentions:   Fujifilm Medical Systems

8. Detecting vulnerable plaque

   PatFT, AppFT (Nov 11 2008) Cardiology , Patents Explore Article

   An apparatus and associated method for detecting vulnerable plaque within a lumen defined by an intraluminal wall is described. The apparatus includes a probe having a distal portion and a proximal portion. The apparatus includes an optical waveguide extending along the probe. The optical waveguide is configured to carry optical radiation between the distal and proximal portions, and has a distal end in communication with the intraluminal wall. The apparatus ... (Read Full Article)
   

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9. Imaging system and related techniques

   PatFT, AppFT (Nov 4 2008) Patents Explore Article

   BACKGROUND OF THE INVENTION As is known in the art, fiber optic endoscopy is typically conducted by transmitting an image through an array of fibers often referred to as a fiber bundle. While successful for a variety of medical and non-medical applications, utilization of an array of fibers to form the image imposes constraints on the cost, diameter, and flexibility of the imaging device. In an attempt to overcome these ... (Read Full Article)
   

   Comment on Article Mentions:   Guillermo J. Tearney   Brett E. Bouma   Massachusetts General Hospital

10. Interferometer for determining characteristics of an object surface

    PatFT, AppFT (Nov 4 2008) Patents Explore Article

    BACKGROUND The invention relates to interferometry.Interferometric techniques are commonly used to measure the profile of a surface of an object. To do so, an interferometer combines a measurement wavefront reflected from the surface of interest with a reference wavefront reflected from areference surface to produce an interferogram. Fringes in the interferogram are indicative of spatial variations between the surface of interest and the reference surface. A scanning interferometer scans the ... (Read Full Article)
    

    Comment on Article Mentions:   Zygo   Peter J. De Groot

11. Method and an apparatus for shape measurement, and a frequency comb light generator

    PatFT, AppFT (Oct 21 2008) Patents Explore Article

    A method and an apparatus for shape measurement that is able to observe the deep portion under a skin with high spatial resolution by using a frequency COMB light generator is provided. A frequency COMB light generator for generating multiple frequency COMBs with variable frequency pitch at high operation stability is provided.This apparatus for shape measurement comprises a frequency COMB light generator and an optical interferometer for measuring the distance. ... (Read Full Article)
    

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12. Confocal microscope apparatus

    PatFT, AppFT (Oct 21 2008) Microscopy , Patents Explore Article

    A confocal microscope apparatus capable of rapidly obtaining a tomographic image using OCT measuring. The confocal microscope apparatus for obtaining a tomographic image of a measuring object includes a light modulating section that modulates the frequency of the reference light. The light modulating section includes: a diffraction grating element for dispersing the reference light; a collimator lens for collimating the reference light dispersed by the diffraction grating element; and a ... (Read Full Article)
    

    Comment on Article Mentions:   Fujifilm Medical Systems

13. Control system and apparatus for use with laser excitation and ionization

    PatFT, AppFT (Oct 21 2008) Patents Explore Article

    A control system and apparatus for use with laser ionization is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control system. A further aspect of the present invention employs a femtosecond laser and a mass spectrometer in yet other aspects of the present invention, the control system and apparatus are used in MALDI, chemical bond cleaving, protein sequencing, photodynamic therapy, ... (Read Full Article)
    

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14. Eye examination device by means of tomography with a sighting device

    PatFT, AppFT (Oct 21 2008) Ophthalmology , Patents Explore Article

    A sighting device is provided for an examination of the eye, including at least one moving target with a programmable form and trajectory, the target being displayed on a visualisation unit, such as an appropriate screen and visible from both eyes during the examination. An in-vivo tomographical eye examination system is also provided, including: a Michelson interferometer, generating a full-field OCT image, adaptable optical apparatus, arranged between the interferometer and ... (Read Full Article)
    

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15. Optical measuring apparatus

    PatFT, AppFT (Oct 14 2008) Patents Explore Article

    BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to an optical measuring apparatus for measuring characteristics of a test section using light emitted from a light source.2. Description of the Related ArtVarious types of optical measuring systems for measuring characteristic of a test section using light emitted from a light source are known. Optical measurement allows nondestructive testing of semiconductors, disks, living bodies, and the like. For ... (Read Full Article)
    

    Comment on Article Mentions:   Fujifilm Medical Systems

16. Patterned spinning disk based optical phase shifter for spectral domain optical coherence tomography

    PatFT, AppFT (Oct 7 2008) Patents Explore Article

    BACKGROUND OF THE INVENTION 1. Field of the InventionThe invention relates generally to optical phase shifting and in particular to apparatus and methods for achieving low cost and yet relatively rapid discrete phase shifting in optical interferometers. 2. Description of Related ArtOptical coherence tomography (OCT) is a technology that is based on low coherence optical interferometry to scan a sample in both the depth and transverse directions to generate a ... (Read Full Article)
    

    Comment on Article Mentions:   Carl Zeiss Meditec   Scott Meyer   Matthew J. Everett

17. Method and apparatus for scanning optical delay line

    PatFT, AppFT (Sep 23 2008) Patents Explore Article

    The present invention relates in general to optical interferometric systems, and in particular to scanning optical delay lines of an interferometric system.Interferometric systems are deployed in a wide and growing number of applications. Typically, interferometric systems involve two arms, a beam splitter and a beam combiner. A beam of light incident the beam splitter is divided in two: one partof the beam is directed down each of the arms. The ... (Read Full Article)
    

    Comment on Article Mentions:   Guy Lamouche   Marc L. Dufour   National Research Council Canada

18. Interferometer for determining characteristics of an object surface, including processing and calibration

    PatFT, AppFT (Sep 23 2008) Patents Explore Article

    BACKGROUND The invention relates to interferometry.Interferometric techniques are commonly used to measure the profile of a surface of an object. To do so, an interferometer combines a measurement wavefront reflected from the surface of interest with a reference wavefront reflected from areference surface to produce an interferogram. Fringes in the interferogram are indicative of spatial variations between the surface of interest and the reference surface.A scanning interferometer scans the optic (Read Full Article)
    

    Comment on Article Mentions:   Zygo   Peter J. De Groot

19. Interferometer-based real time early fouling detection system and method

    PatFT, AppFT (Sep 23 2008) Patents Explore Article

    BACKGROUND The invention relates generally to fouling detectors, and more particularly to interferometer-based fouling detectors.Fouling is the nucleation and growth of biological, organic or inorganic, deposits on a substrate. The substrate can be a surface of an implantable device in a biological system, the wall of heat exchanger tubing or cooling tower, or the wallsand trays of a fractionation tower, for example. Fouling typically results in a degradation of the ... (Read Full Article)
    

    Comment on Article Mentions:   Micron Optics

20. Common path frequency domain optical coherence reflectometry/tomography device

    PatFT, AppFT (Sep 23 2008) Patents Explore Article

    BACKGROUND OF THE INVENTION The present invention relates to systems and methods for visualizing subsurface regions of samples, and more specifically, to a frequency domain optical coherence reflectometer and frequency domain optical coherence tomography (OCT) device thatprovides internal depth profiles and depth resolved images of samples.Optical coherence reflectometry/tomography involves splitting an optical radiation into at least two portions, and directing one portion of the optical radiati (Read Full Article)
    

    Comment on Article Mentions:   Superlum   Imalux   Felix I. Feldchtein

21. Common path frequency domain optical coherence reflectometer and common path frequency domain optical coherence tomography device

    PatFT, AppFT (Sep 16 2008) Patents Explore Article

    BACKGROUND OF THE INVENTIONThe present invention relates to systems and methods for visualizing subsurface regions of samples, and more specifically, to a frequency domain optical coherence reflectometer and frequency domain optical coherence tomography (OCT) device thatprovides internal depth profiles and depth resolved images of samples.Optical coherence reflectometry/tomography involves splitting an optical radiation to at least two portions, and directing one portion of the optical radiation (Read Full Article)
    

    Comment on Article Mentions:   Imalux   Felix I. Feldchtein

22. Light source apparatus and optical tomography imaging apparatus

    PatFT, AppFT (Sep 9 2008) Patents Explore Article

    BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a light source that emits light, which is obtained by multiplexing light from a plurality of light sources. The present invention also relates to an optical tomography imaging apparatus, which is equipped withthe light source, and obtains optical tomographic images by OCT (Optical Coherence Tomography) measurement.2. Description of the Related ArtConventionally, optical tomography imaging apparatuses that utiliz (Read Full Article)
    

    Comment on Article Mentions:   Fujifilm Medical Systems

23. Scanner apparatus having electromagnetic radiation devices coupled to MEMS actuators

    PatFT, AppFT (Sep 2 2008) Patents Explore Article

    FIELD OF THE INVENTION The present invention relates to scanner devices in general, and more particularly, to electromagnetic radiation scanner devices. BACKGROUND OF THE INVENTION It is known in some industrial, medical, and consumer applications to scan objects. For example, U.S. Pat. No. 5,321,501 to Swanson et al. entitled Method and Apparatus for Optical Imaging with Means for Controlling the Longitudinal Range ofthe Sample, describes an assembly that scans angularly ... (Read Full Article)
    

    Comment on Article Mentions:   Duke University

24. Multi-wavelength imaging system

    PatFT, AppFT (Sep 2 2008) Patents Explore Article

    FIELD OF THE INVENTION The present invention relates to a multi-energy system that generates and/or forms images of targets/structures by applying Mueller matrix imaging principles and/or Stokes polarimetric parameter imaging principles to data obtained by themulti-energy system. In one embodiment, the present invention utilizes at least one energy or light source to generate two or more Mueller matrix and/or Stokes polarization parameters images of a target/structure, and evaluates the Mueller ... (Read Full Article)
    

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