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.
Patent No.:
Date of Patent:
Mar. 23, 2021
Filed:
Feb. 05, 2019
Applicant:
Open Water Internet Inc., San Francisco, CA (US);
Inventor:
Sarmishtha Satpathy, San Francisco, CA (US);
Assignee:
Open Water Internet Inc., San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/49 (2006.01); G01N 21/3577 (2014.01); G01N 21/45 (2006.01); G01N 21/47 (2006.01);
U.S. Cl.
CPC ...
G01N 33/4925 (2013.01); G01N 21/3577 (2013.01); G01N 21/45 (2013.01); G01N 21/4795 (2013.01); G01N 2021/451 (2013.01);
Abstract
A first wavelength-shifted exit signal is interfered with a first reference beam and a second wavelength-shifted exit signal is interfered with a second reference beam. The first wavelength-shifted exit signal and the second wavelength-shifted exit signal have different wavelengths. A first and second interference pattern are captured by an image sensor in a single image capture. The first reference beam is incident on the image sensor at a first reference angle and the second reference beam is incident on the image sensor at a second reference angle different from the first reference angle.