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公开(公告)号：EP1948024A4
公开(公告)日：2011-01-19
申请号：EP06790906
申请日：2006-10-31
Applicant: OTI OPHTHALMIC TECHNOLOGIES INC
Inventor： ROGERS JOHN A , HATHAWAY MARK
CPC classification number: A61B3/102 , G01N21/4795
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公开(公告)号：EP1948024A1
公开(公告)日：2008-07-30
申请号：EP06790906.9
申请日：2006-10-31
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： ROGERS, John, A. , HATHAWAY, Mark
CPC classification number: A61B3/102 , G01N21/4795
Abstract: A method of performing spectral OCT imaging on a target involves repeatedly scanning said target along a transverse scanning line with an object beam derived from an OCT interferometer having a narrowband source. The wavelength of the narrowband source is modulated over a range of wavelengths at a rate that is slow relative to the rate of scanning the target. The object beam returned from the target is detected to produce a set of data obtained from multiple scans along said scanning line over the entire range of wavelengths. The data is then processed to extract an OCT image (typically a B-scan) of the target containing depth information.
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公开(公告)号：EP1492442A1
公开(公告)日：2005-01-05
申请号：EP03746207.4
申请日：2003-04-08
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： PODOLEANU, Adrian , ROGERS, John
IPC: A61B3/12
CPC classification number: A61B3/102 , A61B3/1025 , G01B9/0203 , G01B9/02077 , G01B9/02083 , G01B9/02091 , G01B2290/65
Abstract: Apparatus for high resolution imaging of a moving object comprises a source of low coherence light, an optical coherence tomography imaging instrument or a dual channel, optical coherence tomography/confocal imaging instrument, a transverse scanner, an interferometer, depth adjustment means, and interface optics. First and an optional second sensing blocks sense the axial and respectively the transverse position of the object. A splitting element is shared so that the interface optics and the sensing blocks have a common axis of light transmitted to and from the object. Timing means establishes a timing, and timing intervals and reference times for images as they are taken. The acceptability of each scanned image is determined according to predetermined criteria. A series of en-face OCT images, or of longitudinal OCT images of the object may be taken at different depths or transverse coordinates, and the stack of collected images is used to build 3D profiles of the object.
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公开(公告)号：EP1948023A4
公开(公告)日：2011-10-19
申请号：EP06790905
申请日：2006-10-31
Applicant: OTI OPHTHALMIC TECHNOLOGIES INC
Inventor： ROGERS JOHN A , HATHAWAY MARK
CPC classification number: G01N21/4795 , A61B3/102
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公开(公告)号：EP1725162A1
公开(公告)日：2006-11-29
申请号：EP05714607.8
申请日：2005-03-11
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： PODOLEANU, Adrian
CPC classification number: G01B9/02091 , A61B3/102 , G01B9/02083
Abstract: OCT cross section images of a part of a curved object are displayed by creating a series of image points and placing each image point into a corrected image in such a way that the positions of scattering points within the image coincide with or are at least closer to their real spatial distribution within the curved object.
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Patent Agency Ranking26.发明公开OPTICAL MAPPING APPARATUS WITH ADJUSTABLE DEPTH RESOLUTION AND MULTIPLE FUNCTIONALITY 有权具有可调分辨率低，多功能性光学图像装置
公开(公告)号：EP1521545A1
公开(公告)日：2005-04-13
申请号：EP03739920.1
申请日：2003-06-27
Applicant: Oti Ophthalmic Technologies Inc.
Inventor： PODOLEANU, Adrian, Gh. , JACKSON, David, A. , ROGERS, John, A. , DOBRE, George, M. , CUCU, Radu, G.West Acre
CPC classification number: A61B3/102 , A61B3/1025 , G01N21/4795
Abstract: The present invention relates to a multiple channel optical mapping apparatus which can deliver one or simultaneously at least two images of different depth resolutions or sequentially, images with different depth resolutions, or a combination of these images, or a single image with adjustable depth resolution. The multiple channels could be either multiple confocal channel and one or two optical coherence tomography channel, or two optical coherence tomogrraphy channels, or two confocal channels. The channels, either OCT or confocal can operate on the same wavelength or on different wavelengths. The apparatus can display both transversal as well as longitudinal images in an object, particularly the eye.
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公开(公告)号：EP1240476A1
公开(公告)日：2002-09-18
申请号：EP99957810.7
申请日：1999-12-09
Applicant: Oti Ophthalmic Technologies Inc.
Inventor： Podoleanu, Adrian Gh. , Jackson, David A.
CPC classification number: A61B3/102 , A61B3/1025 , A61B3/12 , G01B9/02009 , G01B9/0201 , G01B9/02012 , G01B9/02027 , G01B9/0203 , G01B9/02087 , G01B9/02091 , G01B11/2441 , G01B2290/20 , G01B2290/65 , G01N21/4795
Abstract: Optical mapping apparatus with adjustable depth resolution is provided. The optical mapping apparatus can display transversal images in an object, particularly the eye. The apparatus can deliver two or more images with different depth resolutions, or a combination of these images, or only one image with adjustable depth resolution. There is also provided optical mapping apparatus with adjustable depth resolution, where OCT images are corrected for the curvature at the back of the eye lens.
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公开(公告)号：EP1492442B1
公开(公告)日：2010-11-10
申请号：EP03746207.4
申请日：2003-04-08
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： PODOLEANU, Adrian , ROGERS, John
IPC: A61B3/12
CPC classification number: A61B3/102 , A61B3/1025 , G01B9/0203 , G01B9/02077 , G01B9/02083 , G01B9/02091 , G01B2290/65
Abstract: Apparatus for high resolution imaging of a moving object comprises a source of low coherence light, an optical coherence tomography imaging instrument or a dual channel, optical coherence tomography/confocal imaging instrument, a transverse scanner, an interferometer, depth adjustment means, and interface optics. First and an optional second sensing blocks sense the axial and respectively the transverse position of the object. A splitting element is shared so that the interface optics and the sensing blocks have a common axis of light transmitted to and from the object. Timing means establishes a timing, and timing intervals and reference times for images as they are taken. The acceptability of each scanned image is determined according to predetermined criteria. A series of en-face OCT images, or of longitudinal OCT images of the object may be taken at different depths or transverse coordinates, and the stack of collected images is used to build 3D profiles of the object.
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公开(公告)号：EP2076734A1
公开(公告)日：2009-07-08
申请号：EP07866187.3
申请日：2007-10-05
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： ROGERS, John , HATHAWAY, Mark
CPC classification number: G01B9/02044 , A61B3/102 , G01B9/0203 , G01B9/02089 , G01B9/02091 , G01B2290/45 , G01N21/4795 , G01N21/6456
Abstract: Apparatus for obtaining depth profile information from a transparent object, includes a confocal scanner for producing an en-face image of the object in an x-y plane, a spectral optical coherence tomography (OCT) apparatus for producing an OCT scan along at least one line in the z direction passing through a point in the x-y plane, and a display device. A processing unit displays on the display device the en-face image and an indication of the position of the point so as to permit the location of the OCT scan to be determined on the en-face image. In other embodiments, SLO and OCT images are produced from a common aperture, and spectral OCT images are produced simultaneously with fluorescence images.
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公开(公告)号：EP1789832A1
公开(公告)日：2007-05-30
申请号：EP05787149.3
申请日：2005-08-31
Applicant: OTI-Ophthalmic Technologies Inc.
Inventor： PODOLEANU, Adrian, Gh. , ROGERS, John, A.
CPC classification number: A61B3/102 , G01B9/0201 , G01B9/02091 , G01B2290/20 , G01B2290/35 , G01B2290/65 , G01N21/4795 , G02B17/023 , G02B26/06
Abstract: A method for axial scanning to be used in transmission in one of the arms of OCT interferometers, with reduced walk-off and loss. Procedures are disclosed of using the scanning delay line in conjunction with the transverse scanners to generate B and C - scan OCT images.
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