US 12,169,124 B2
Frequency-domain optical coherence tomography with extended field-of-view and reduction of aliasing artifacts
Eman Namati, Belmont, MA (US); Muhammad Al-Qaisi, Winchester, MA (US); Matthew A. Sinclair, Sommerville, MA (US); Benedikt Graf, Cambridge, MA (US); and David Vader, Brookline, MA (US)
Assigned to NINEPOINT MEDICAL, INC., Austin, TX (US)
Filed by NINEPOINT MEDICAL, INC., Austin, TX (US)
Filed on May 15, 2023, as Appl. No. 18/317,835.
Application 18/317,835 is a continuation of application No. 17/499,201, filed on Oct. 12, 2021, granted, now 11,686,572.
Application 17/499,201 is a continuation of application No. 16/701,011, filed on Dec. 2, 2019, granted, now 11,175,125, issued on Nov. 16, 2021.
Application 16/701,011 is a continuation of application No. 16/118,513, filed on Aug. 31, 2018, granted, now 10,495,442, issued on Dec. 3, 2019.
Application 16/118,513 is a continuation of application No. 14/278,424, filed on May 15, 2014, granted, now 10,184,782, issued on Jan. 22, 2019.
Claims priority of provisional application 61/824,687, filed on May 17, 2013.
Prior Publication US 2023/0280154 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01B 9/02091 (2022.01); A61B 5/00 (2006.01)
CPC G01B 9/02091 (2013.01) [A61B 5/0066 (2013.01); A61B 5/0084 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of optically imaging a sample utilizing a frequency-domain optical coherence tomography (OCT) system comprising a wavelength-swept light source, the method comprising:
illuminating the sample with a first portion of light emitted by the wavelength-swept light source;
illuminating a reference plane with a second portion of light emitted by the wavelength-swept light source;
shifting a frequency of at least one of the first portion of light or the second portion of light to define a sampling range including a set of frequencies; and
generating a displayed imaging range from the sampling range, the displayed imaging range comprising essentially of only a subset of the set of frequencies within the sampling range.