The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 07, 2026

Filed:

Jul. 24, 2024
Applicants:

Hamamatsu Photonics K.k., Shizuoka, JP;

Energetiq Technology, Inc., Wilmington, MA (US);

Inventors:

Qingsong Wang, Lexington, MA (US);

Shaival Vipul Buch, Watertown, MA (US);

Huiling Zhu, Lexington, MA (US);

Assignees:

Hamamatsu Photonics K.K., Shizuoka, JP;

Energetiq Technology, Inc., Wilmington, MA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02091 (2022.01); G01B 9/02 (2022.01); G01B 9/02055 (2022.01); G01N 21/47 (2006.01);
U.S. Cl.
CPC ...
G01B 9/02091 (2013.01); G01B 9/02044 (2013.01); G01B 9/0207 (2013.01); G01N 21/4795 (2013.01);
Abstract

An OCT system includes a broadband light source, and a beam splitter that splits the broadband light into a reference beam and an illumination beam. A reference mirror reflects the reference beam. Illumination optics passes the illumination beam and has a reflective surface with an optical power. Collection optics has a transparent region and a reflective surface with an optical power. The collection optics is configured so that the illumination beam is reflected from the reflective surface of the collection optics to the reflective surface of the illumination optics such that the illumination beam is redirected to a surface of a sample at an angle that results in scattering from within the sample that forms a sample beam propagating normal to a surface of the sample and through the transparent region of collection optics and through the transparent region of the illumination optics. An interferometric combiner is configured to interferometrically combine light from the sample beam and the reference beam. A spectrometer is configured to receive the interferometrically combined light from the sample beam and the reference beam and to generate spectral interferometric information. A processor processes the spectral interferometric information to determine information about the sample.


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