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:
Jun. 18, 2019
Filed:
Jan. 14, 2018
Xiaoke Wan, Fairfax, VA (US);
Xiaoke Wan, Fairfax, VA (US);
Other;
Abstract
In interferometer imaging signal acquisition using a movable optical beam to sample a target with specular or non specular reflecting surfaces or internal features, beam moving during interferometer signal acquisition can generate unwanted phase error due to shifting speckle field. Examples include coherent LIDAR, Interferometry Doppler sensing and optical coherence tomography. During an interferometer signal acquisition period, an interferometer sensing beam can be substantially stationary, and active step-scanning can be synchronized with interferometer signal acquisition cycles. For interferometers using repetitive chirping lasers, passive dispersive counter-scan mechanisms can be used to assist step-scanning operation.