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:
Feb. 17, 2026

Filed:

Oct. 23, 2020
Applicant:

Nanyang Technological University, Singapore, SG;

Inventors:

Bernard Daniel Gaskey, Singapore, SG;

Ludwig Hendl, Singapore, SG;

Matteo Seita, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/47 (2006.01); G01N 21/55 (2014.01); G01N 21/84 (2006.01); G01N 21/88 (2006.01);
U.S. Cl.
CPC ...
G01N 21/4788 (2013.01); G01N 21/8806 (2013.01); G01N 21/8851 (2013.01); G01N 21/55 (2013.01); G01N 2021/8477 (2013.01);
Abstract

A method of determining 3D crystallographic orientation on a crystalline surface of a sample. The method includes directing a beam of collimated light at a predetermined angle of incidence, wherein reflections from the crystalline surface are projected onto an image sensing unit positioned in a path of reflected light; obtaining a directional reflectance profile from an image of the reflectance pattern generated by the image sensing unit by pixelising the reflectance pattern into a pixelated-image with a center coinciding an intersection of a specularly reflected light beam and the image sensing unit; and processing the directional reflectance profile based on analyzing reflection intensity data in the pixelated-image of the directional reflectance profile to determine the crystallographic orientation of the crystalline surface. A further method including projecting the reflections onto a detector screen and capturing an image of the reflectance pattern on the detector screen.


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