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7630083 |
Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
Apparatus and method for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral...
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7599544 |
Authenticating and authentic article using spectral imaging and analysis
Authenticating an authentic article having an authentication mark. Acquiring a set of spectral images of the authentication mark, for forming a set of single-authentication mark spectral...
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7595889 |
Systems and methods for endoscopic angle-resolved low coherence interferometry
Fourier domain a/LCI (faLCI) system and method which enables in vivo data acquisition at rapid rates using a single scan. Angle-resolved and depth-resolved spectra information is obtained with one...
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7586618 |
Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes Raman scattering
A method of examining a sample comprises exposing the sample to a pump pulse of electromagnetic radiation for a first period of time, exposing the sample to a stimulant pulse of electromagnetic...
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7570367 |
Optical interference apparatus
A light emission section includes light generators which are operated on the basis of drive signals from a controller so as to emit near infrared interferable light beams having different specific...
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7557927 |
Optical apparatus for capturing spectral image
An optical apparatus for capturing spectral images includes a variable spectroscopy device having first and second optical members that face each other and have a space therebetween, the spectral...
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7551293 |
Method and apparatus for three-dimensional spectrally encoded imaging
A method and apparatus for providing information associated with at least one portion of a sample can be provided. For example, at least one wavelength of electro-magnetic radiation provided on a...
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7538872 |
Diagnostic methods and apparatus for directed energy applications
Determining relationships between one laser beam and an object onto which such beam is directed including: directing such beam onto the object; collecting radiation from the beam that is reflected...
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7518728 |
Method and instrument for collecting fourier transform (FT) Raman spectra for imaging applications
An instrument having an illumination source configured to illuminate a field of illumination on a surface of a substrate that is configured to hold a sample. The field of illumination typically has...
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7515275 |
Optical apparatus and method for distance measuring
An optical sensor for determining a distance between a target and a probe head is described. The optical sensor comprises a light source delivering a broadband spectrum; a fiber-optic Michelson...
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7492462 |
Optochemical sensor
A sensor containing a beam emitter that emits a first beam having laser, a beam-splitting interferometer and an array detector, wherein the first beam is to strike a sample that produces a second...
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7468792 |
Evaluation apparatus and evaluation method
An evaluation apparatus which evaluates a sample. The apparatus includes a light source which irradiates the sample with light, an imaging spectrometer which spectroscopically measures light...
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7440108 |
Imaging spectrometer including a plurality of polarizing beam splitters
The present invention relates to an imaging apparatus and comprises input and output polarisers, a first polarising beam splitter and at least one additional polarising beam splitter, a light...
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7415303 |
Optical scanning and imaging system and method
An optical scanning and imaging system and related method for scanning and imaging an object is disclosed. The scanning and imaging system does not use mechanically moving components to achieve...
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7411682 |
Real time high speed high resolution hyper-spectral imaging
Real time high speed high resolution hyper-spectral imaging. (a) electromagnetic radiation collimating element ( 16 ), collimating electromagnetic radiation ( 44 ) emitted by objects ( 12 ) in a...
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7394546 |
Method and apparatus for full phase interferometry
An apparatus and method for differential spectral interferometry comprising providing an interferometer comprising a light source; employing an element to provide a dithered relative phase shift...
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7391519 |
Generation of spatially distributed spectral data using a multi-aperture system
Detecting the presence of a target material in a scene by using a multi-aperture interferometer system having a plurality of apertures at least one of which has an adjustable optical path length,...
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7385705 |
Imaging spectroscopy based on multiple pan-chromatic images obtained from an imaging system with an adjustable point spread function
Generating a multispectral or hyperspectral image of an image source with an optical system having an adjustable, wavenumber-dependent point spread function, by collecting panchromatic images of...
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7354733 |
Method for sorting and separating living cells
We disclose methods of sorting or separating mixtures of living cells (e.g., eukaryotic, prokaryotic, mammalian, pathogenic, bacterial, viral, etc.). We perform our methods by activating...
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7352470 |
Fourier transform spectrometry with a single-aperture interferometer
A spectrometer that implements the functionality of a Fizeau interferometer, the spectrometer including a collection device that is configured to collect a wavefront, a deformable mirror disposed...
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7336366 |
Methods and systems for reducing complex conjugate ambiguity in interferometric data
A complex conjugate ambiguity can be resolved in an Optical Coherence Tomography (OCT) interferogram. A reference light signal is propagated along a reference path. A sample light signal is...
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7330268 |
Spectral imaging apparatus and methodology
A method and apparatus for an improved spectral imaging system is provided. The system is capable of measuring the fluorescence, luminescence, or absorption at selected locations on a sample plate....
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7330270 |
Method to suppress artifacts in frequency-domain optical coherence tomography
One embodiment of the present invention is a method for suppressing artifacts in frequency-domain OCT images, which method includes (a) providing sample and reference paths with a significant...
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7330267 |
Device and method for optical spectroscopy
The invention relates to an apparatus for optical spectroscopy having means to produce an interference pattern and having a spatially resolving detector which can record the interference pattern...
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7219086 |
System and method for hyper-spectral analysis
A hyper-spectral analysis method for characterizing or distinguishing diverse elements within hyper-spectral images. A plurality of patches of pixels from within the hyper-spectral images are...
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7206074 |
Apparatus and method for measuring spectral reflectance and apparatus for measuring film thickness
A film thickness measurement apparatus has an image pickup part ( 32 ) for acquiring a plurality of single-band images corresponding to a plurality of wavelengths, and the image pickup part ( 32 )...
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7170610 |
Low-coherence inferometric device for light-optical scanning of an object
Low-coherence interferometric apparatus for light-optical scanning of an object ( 18 ) with a low-coherence interferometer ( 6 ) comprising a low-coherent light source ( 7 ), a reference reflector...
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7167249 |
High efficiency spectral imager
Optical instruments having, inter alia, optics to process wavelengths of electromagnetic radiation to produce an interferogram. The instruments include at least one optical path and optical...
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7103401 |
Colonic polyp discrimination by tissue fluorescence and fiberoptic probe
A system and method for the in situ discrimination of healthy and diseased tissue. A fiberoptic based probe is employed to direct ultraviolet illumination onto a tissue specimen and to collect the...
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7092101 |
Methods and systems for static multimode multiplex spectroscopy
Methods and systems for static multimode multiplex spectroscopy are disclosed. According to a method for static multimode multiplex spectroscopy, spectral energy emanating from different points of...
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7092103 |
Phase diversity method and apparatus using fourier transform spectroscopy
A method for reducing a piston between a plurality of optical-collection devices configured to operate as a single optical device, such that the optical-collection devices are configured to capture...
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7079254 |
Method and apparatus for imaging internal structures of transparent and translucent materials
An apparatus and method for spectral interferometry comprising providing an interferometer comprising a light source and dithering an element to provide a continuous relative phase shift between...
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7034945 |
Fourier transform spectrometry with a multi-aperture interferometer
A spectrometer configured to extract spectral information from a wavefront. The spectrometer includes a first collection device that includes an adjustable-optical path and configured to collect a...
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6992775 |
Hyperspectral retinal imager
An ophthalmic instrument (for obtaining high resolution, wide field of area hyperspectral retinal images for various sized eyes) includes a fundus retinal imager, (which includes optics for...
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6989901 |
Interferometer
The present invention provides an improved interferometer design. Embodiments of the present invention provide a beam splitter, mounted with first and second reflective elements. An OPD element...
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6963405 |
Laser counter-measure using fourier transform imaging spectrometers
In an imaging system providing an image of a target of interest, a method of reducing interference from a laser beam includes the steps of: (a) receiving optical energy from the target of interest...
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6930781 |
Miniaturized holographic fourier transform spectrometer with digital aberration correction
A digitally aberration corrected miniaturized holographic Fourier transform spectrometer (HFTS) made from simple optical components and with no moving parts is provided. The disclosed digitally...
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6867863 |
Integrated diagnostic for photoelastic modulator
A diagnostic system ( 24 ) for a PEM ( 20 ) provides optically determined information about the retardance characteristics induced by the PEM ( 20 ). The diagnostic system ( 24 ) is integrated with...
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6868371 |
System and method to quantify appearance defects in molded plastic parts
A spatially-resolved spectrometer is used to measure streaking in molded sample plastic parts produced using a molding tool with various mold inserts which produce certain desired topological...
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6801318 |
Apparatus and method for measuring intensity and phase of a light pulse with an interferometric asymmetric single-shot autocorrelator
An apparatus and method to measure optical intensity and phase of one or several light pulses is described. The apparatus combines a spectrally resolved interferometric asymmetric single-shot...
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6687007 |
Common path interferometer for spectral image generation
Optical instruments having, inter alia, optics to process wavelengths of electromagnetic radiation to produce an interferogram. The instruments include at least one optical path and optical...
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6665075 |
Interferometric imaging system and method
A broadband imaging system is disclosed that provides greatly enhanced depth resolution through the use of phase shift interferometry. The system may comprise a transmitter, a splitter, a phase...
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6631001 |
Spectral image input device
A spectral image input device has an image forming optical system for forming an image of image light on an image forming surface and a phase difference generating unit disposed anterior to the...
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6614533 |
Spectroscopic image input system
A spectroscopic image input system has an image data capturing apparatus for capturing the image data of an object by using a two-dimensional image-sensing device, a spectrum data obtaining...
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6519040 |
Imaging system and method for Fourier transform spectroscopy
Fourier Transform Spectroscopy is performed using a birefringent device to vary path difference systematically for all regions of an image simultaneously, so that a separate interferogram is...
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6147762 |
Method of spectroscopic investigation of electromagnetic radiation by means of a fourier spectrometer
The correction method of the invention synthesizes a distortion-free interferogram (or spectrum) from a measured interferogram, which has been distorted by detector non-linearities, and a finite...
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6088099 |
Method for interferometer based spectral imaging of moving objects
A method for spatial registration and spectral correction for interferometer based spectral imaging which can be used to obtain spectral images of a moving object, the method comprising the steps...
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6088100 |
Three-dimensional light absorption spectroscopic imaging
An absorption imaging spectrometer for providing a three-dimensional spectral image of a light-transmitting sample. Temporally incoherent light is used to illuminate the sample, with a portion of...
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RE36529 |
Spectroscopic imaging device employing imaging quality spectral filters
Techniques for providing spectroscopic imaging integrates an acousto-optic tunable filter (AOTF), or an interferometer, and a focal plane array detector. In operation, wavelength selectivity is...
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5995645 |
Method of cancer cell detection
A method for cancer cell detection including the steps of (a) staining an analyzed sample with at least first and second dyes, the dyes being selected such that the first dye better adheres to...
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