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:
Jan. 08, 2013
Filed:
Mar. 04, 2011
Carlos Font, Alexandria, VA (US);
G Charmaine Gilbreath, Burke, VA (US);
Freddie Santiago, Albuquerque, NM (US);
Blerta Bajramaj, Alexandria, VA (US);
David Kim, Greenbelt, MD (US);
Carlos Font, Alexandria, VA (US);
G Charmaine Gilbreath, Burke, VA (US);
Freddie Santiago, Albuquerque, NM (US);
Blerta Bajramaj, Alexandria, VA (US);
David Kim, Greenbelt, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method of flattening a deformable mirror (DM) such as a piezoelectric DM to correct for distortion includes inputting an incident light beam into a reference beam optical path while blocking the DM response, recording a flat wavefront (Φn, R) as a reference wavefront from a reference mirror, blocking the reference beam to obtain a DM response, activating a close-loop mode of DM Control Software and computing iterations until a difference between the reference wavefront and the DM response is minimized, recording a wavefront created by the DM (Φn, DM) and the corresponding voltage vector (Vn) applied to the DM; and applying a voltage vector to the DM to thereby flatten the DM and correct for the distortion. The method is useful in an application such as for ground-to-space links at Short Wave Infrared (SWIR) wavelengths.