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:
Oct. 12, 2021

Filed:

Dec. 17, 2018
Applicant:

Kimball Electronics Indiana, Inc., Jasper, IN (US);

Inventors:

Sangtaek Kim, Dublin, CA (US);

Yan Cheng, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01); G01B 9/02 (2006.01); G02B 27/14 (2006.01); G01B 11/30 (2006.01); G09G 3/00 (2006.01);
U.S. Cl.
CPC ...
G01B 11/2441 (2013.01); G01B 9/0203 (2013.01); G01B 9/02016 (2013.01); G01B 9/02024 (2013.01); G01B 11/30 (2013.01); G01B 11/303 (2013.01); G02B 27/144 (2013.01); G09G 3/006 (2013.01); G01B 2290/70 (2013.01);
Abstract

An interferometer detection system, including a beam splitter receiving a collimated light signal and splitting the signal into a first light signal and a second light signal. The system includes a first mirror receiving and reflecting the first light signal along a first path. The system includes a second mirror receiving and reflecting the second light signal along a second path via a transparent material. The system includes a 2D photosensor array configured to receive from the beam splitter the reflected first light signal merged with the reflected second light signal double passing through the transparent material and configured to generate an interference fringe pattern. A non-sinusoidal interference fringe pattern indicates geometrical variation between a wavefront of the reflected first light signal along the first path and a wavefront of the reflected second light signal double passing through the transparent material along the second path.


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