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:
Oct. 29, 2024
Filed:
Mar. 29, 2022
Applicant:
Thorlabs, Inc., Newton, NJ (US);
Inventors:
Oliver Heckl, Vienna, AT;
Jakob Fellinger, Arlberg, AT;
Assignee:
Thorlabs, Inc., Newton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 17/34 (2020.01); G01B 9/02001 (2022.01); G01J 3/433 (2006.01); G01J 3/45 (2006.01); G01J 3/457 (2006.01); G01S 7/48 (2006.01); G01S 7/497 (2006.01); G01S 17/894 (2020.01); G01J 3/28 (2006.01); G01J 3/42 (2006.01);
U.S. Cl.
CPC ...
G01B 9/02008 (2013.01); G01J 3/433 (2013.01); G01J 3/45 (2013.01); G01J 3/457 (2013.01); G01S 7/4808 (2013.01); G01S 7/497 (2013.01); G01S 17/34 (2020.01); G01S 17/894 (2020.01); G01J 2003/2879 (2013.01); G01J 2003/423 (2013.01); G01J 2003/4332 (2013.01);
Abstract
A device that uses two intensity modulated frequency combs to measure distances with high precision and high data acquisition rate without any moving parts and without length ambiguity that is inherent conventional ranging based on two frequency combs. A modulation signal having a repetition rate identical to the repetition rate difference between the two combs is used to do a direct time-of-flight length measurement, hence avoiding the given length ambiguity while harvesting the increased precision of the dual-comb approach.