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Optical coherence tomography with a fizeau-type interferometer

  • US 10,408,600 B2
  • Filed: 06/22/2017
  • Issued: 09/10/2019
  • Est. Priority Date: 06/22/2017
  • Status: Active Grant
First Claim
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1. An optical system for generating an optical coherence tomography (OCT) image of a sample, the optical system comprising:

  • a light source configured to generate and project an optical beam along an optical path;

    a scanning element configured to receive the optical beam and direct the optical beam in a plurality of directions towards the sample;

    a first lens disposed between the scanning element and the sample, wherein the scanning element is disposed in a rear focal plane of the first lens to enable telecentric scanning of the sample by varying an orientation of the scanning element;

    a reflective element disposed between the first lens and the sample, wherein the reflective element has a reflectivity within a range such that a first portion of the optical beam is transmitted through the reflective element to form a sample component beam and a second portion of the optical beam is reflected off of a surface of the reflective element to form a reference beam; and

    a detector configured to receive an interference signal generated by the sample beam and the reference beam.

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