Patent application number | Description | Published |
20080268734 | ELASTIC COMPOSITE YARNS AND WOVEN FABRICS MADE THEREFROM, AND METHODS AND APPARATUS FOR MAKING THE SAME - Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107). | 10-30-2008 |
20100281842 | ELASTIC COMPOSITE YARNS AND WOVEN FABRICS MADE THEREFROM, AND METHODS AND APPARATUS FOR MAKING THE SAME - Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107). | 11-11-2010 |
20120244771 | METHODS AND APPARATUS FOR MAKING ELASTIC COMPOSITE YARNS - Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107). | 09-27-2012 |
Patent application number | Description | Published |
20090141237 | Integrated Optical Coherence Imaging Systems for Use in Ophthalmic Applications and Related Methods and Computer Program Products - A system for imaging a sample is provided that includes an optical coherence tomography (OCT) portion having an associated OCT path. A second imaging portion is provided having an associated second image path, different from the OCT path. A fixation target having an associated fixation path, different from the second image path and the OCT path is also provided. The OCT path, the second image path and the fixation path are confocal at a common image plane. Related handheld systems are also provided. | 06-04-2009 |
20090268020 | Optical Coherence Tomography (OCT) Imaging Systems for Use in Pediatric Ophthalmic Applications and Related Methods and Computer Program Products - Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided. | 10-29-2009 |
20090268161 | OPTICAL COHERENCE TOMOGRAPHY (OCT) IMAGING SYSTEMS HAVING ADAPTABLE LENS SYSTEMS AND RELATED METHODS AND COMPUTER PROGRAM PRODUCTS - OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject. | 10-29-2009 |
20100014081 | Volume Phase Grating Spectrometers and Related Methods and Systems - A Spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical radiation to a spectrometer system; a diffraction grating for dispersing the optical radiation along a prescribed plane; at least one lens for focusing wavelength-dispersed light onto at least one array of a detector of optical radiation, wherein the camera has at least one linear array of elements for detecting optical radiation; a mechanical housing, wherein the axial symmetric camera mount is configured to couple the camera to the mechanical housing; and a means for rotating the camera coupled to the mechanical housing about an axis. Related systems and methods are also provided. | 01-21-2010 |
20110096291 | Systems for Extended Depth Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods - Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein. | 04-28-2011 |
20110102802 | Systems for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods - Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second. | 05-05-2011 |
20120033227 | Compact Multimodality Optical Coherence Tomography Imaging Systems and Related Methods and Computer Program Products - Systems for imaging a sample are provided. The system includes an optical coherence tomography (OCT) imaging portion having an associated OCT path defined by one set of optical elements between an OCT signal delivery optical fiber and the sample; an image capture portion having an associated image capture path defined by a second set of optical elements between an image capture device and the sample, different from the OCT path; and an illuminator portion having an associated illumination path defined by a third set of optical elements between an illumination source and the sample. The OCT path, the image capture path, and the illuminator path have at least one optical element in common, and the respective paths differ from each other by at least one optical element. The OCT path and the image capture path share a common intermediate conjugate image plane. Focal control is achieved for the OCT path and the image capture path concurrently through adjustment of one or more common optical elements distal to the common intermediate conjugate plane, such that focal control requires no differential adjustment between optical elements not in common to both paths. | 02-09-2012 |
20120162602 | Imaging Accessory Frame for Integration with an Operating Microscope - Some embodiments of the present inventive concept provide an accessory frame including an optical coherence tomography (OCT) imaging head. The accessory frame includes a mounting plate including a microscope field lens attachment port and a microscope field plate anchor pin. The mounting plate is configured to receive an intermediate field lens in the microscope field lens attachment port such that the accessory frame shares the mounting plate in common with an intermediate field lens. | 06-28-2012 |
20120224174 | Volume Phase Grating Spectrometers - A spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical radiation to a spectrometer system; a diffraction grating for dispersing the optical radiation along a prescribed plane; at least one lens for focusing wavelength-dispersed light onto at least one array of a detector of optical radiation, wherein the camera has at least one linear array of elements for detecting optical radiation; a mechanical housing, wherein the axial symmetric camera mount is configured to couple the camera to the mechanical housing; and a means for rotating the camera coupled to the mechanical housing about an axis. Related systems and methods are also provided. | 09-06-2012 |
20120242988 | Linearized Variable-Dispersion Spectrometers and Related Assemblies - Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%. | 09-27-2012 |
20130141695 | Optical Imaging Systems Having Input Beam Shape Control and Path Length Control - Scanning optical beam imaging systems for imaging a surface with convex curvature are provided. The systems include a sphero-telecentric objective, wherein a scanning radius of curvature of the sphero-telecentric objective is greater than an apical radius of curvature of the surface and less than or equal to four times an apical radius of curvature of the surface. | 06-06-2013 |
20130235344 | Optical Coherence Tomography (OCT) Imaging Systems for Use in Ophthalmic Applications - Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided. | 09-12-2013 |
20130265545 | Surgical Microscopes Using Optical Coherence Tomography and Related Systems and Methods - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-10-2013 |
20140125952 | Optical Coherence Tomography (OCT) Imaging Systems for Use in Ophthalmic Applications - Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided. | 05-08-2014 |
20140160431 | Systems for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods - Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second. | 06-12-2014 |
20140293223 | Optical Coherence Tomography (OCT) Imaging Systems Having Adaptable Lens Systems and Related Methods and Computer Program Products - OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject. | 10-02-2014 |
20140293224 | Surgical Microscopes Using Optical Coherenece Tomography and Related Systems - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-02-2014 |
20140313509 | Linearized Variable-Dispersion Spectrometers and Related Assemblies - Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%. | 10-23-2014 |
20140354950 | Hybrid Telescope for Optical Beam Delivery and Related Systems and Methods - Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input. | 12-04-2014 |
20150031993 | Procedural Optical Coherence Tomography (OCT) for Surgery and Related Systems and Methods - Methods for performing a surgical procedure using optical coherence tomography (OCT) are provided. The method includes orienting the subject for the surgical procedure, wherein orienting comprises imaging a region of the subject that contains a structure having a known orientational asymmetry, testing the image for the presence and location of the structure, and confirming correct orientation of the subject using the OCT image of the structure having the known orientational asymmetry; obtaining at least one image of the surgical region of the subject using OCT and constructing an initial structural view of the surgical region; computing at least one clinical parameter relevant as an end point for assessing the outcome of the surgical procedure using data derived from the OCT image; periodically assessing a surgical process and monitoring clinical outcomes related to the surgical procedure using changes to the OCT-derived structural view of the surgical region OCT or the changes to the computed clinical parameters derived from the at least an OCT image; determining if a surgical plan for the surgical procedure needs modification based on the periodic assessment and/or monitoring; modifying the surgical plan for the surgical procedure if it is determined modification is needed; and repeatedly assessing and monitoring, determining and modifying until it is determined that modification is not needed. | 01-29-2015 |
20150103355 | Compact Multimodality Optical Coherence Tomography Imaging Systems - Systems for imaging a sample are provided. The system includes an optical coherence tomography (OCT) imaging portion having an associated OCT path defined by one set of optical elements between an OCT signal delivery optical fiber and the sample; an image capture portion having an associated image capture path defined by a second set of optical elements between an image capture device and the sample, different from the OCT path; and an illuminator portion having an associated illumination path defined by a third set of optical elements between an illumination source and the sample. The OCT path, the image capture path, and the illuminator path have at least one optical element in common, and the respective paths differ from each other by at least one optical element. The OCT path and the image capture path share a common intermediate conjugate image plane. Focal control is achieved for the OCT path and the image capture path concurrently through adjustment of one or more common optical elements distal to the common intermediate conjugate plane, such that focal control requires no differential adjustment between optical elements not in common to both paths. | 04-16-2015 |
20150157203 | Optical Systems for Whole Eye Imaging and Biometry - Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance. | 06-11-2015 |
20150159992 | Image Registration, Averaging, and Compounding for High Speed Extended Depth Optical Coherence Tomography - An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflector at a first reference optical path length and a second path having a second reference reflector at a second reference optical path length, different from the first reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflector during a first time interval and the second reference reflector during a second time interval. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval. A processor preconditions the first and second wavelength dependent interferograms; multiples the first preconditioned wavelength dependent interferogram and the second preconditioned wavelength dependent interferogram; and computes a first A-scan from the first wavelength dependent interferogram; a second A-scan from the second wavelength dependent interferogram; a spatial offset between the first and second A-scans derived from the multiplicative product of the preconditioned first and second wavelength dependent interferograms; and a combined A-scan from the first and second A-scans. | 06-11-2015 |
20150305618 | Surgical Microscopes Using Optical Coherence Tomography and Related Systems - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-29-2015 |
20150320312 | Imaging Accessory Frame for Integration With an Operating Microscope - An accessory frame for selectively coupling components to an optical microscope for imaging of a subject is provided. The optical microscope has a body including an undercarriage. The accessory frame includes a mounting plate that attaches to the undercarriage of the microscope. The mounting plate includes a first attachment port and a second attachment port. The first attachment port is configured to couple a first optical assembly in an optical path of the microscope between an objective lens of the microscope and the subject. The second attachment port is configured to couple a second optical assembly to the microscope body with at least a portion of the optical path of the second optical assembly being outside of the optical path of the microscope. | 11-12-2015 |
20150335238 | Optical Systems for Whole Eye Imaging and Biometry - Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance. | 11-26-2015 |
20150359426 | Procedural Optical Coherence Tomography (OCT) for Surgery and Related Methods - Methods for performing a surgical procedure using optical coherence tomography (OCT) are provided. The method includes orienting the subject for the surgical procedure, wherein orienting comprises imaging a region of the subject that contains a structure having a known orientational asymmetry, testing the image for the presence and location of the structure, and confirming correct orientation of the subject using the OCT image of the structure having the known orientational asymmetry; obtaining at least one image of the surgical region of the subject using OCT and constructing an initial structural view of the surgical region; computing at least one clinical parameter relevant as an end point for assessing the outcome of the surgical procedure using data derived from the OCT image; periodically assessing a surgical process and monitoring clinical outcomes related to the surgical procedure using changes to the OCT-derived structural view of the surgical region OCT or the changes to the computed clinical parameters derived from the at least an OCT image; determining if a surgical plan for the surgical procedure needs modification based on the periodic assessment and/or monitoring; modifying the surgical plan for the surgical procedure if it is determined modification is needed; and repeatedly assessing and monitoring, determining and modifying until it is determined that modification is not needed. | 12-17-2015 |