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:
May. 02, 2023

Filed:

Jan. 03, 2022
Applicant:

Us Gov't As Represented BY Secy of Air Force, Wright-Patterson AFB, OH (US);

Inventor:

Joshua Lentz, Niceville, FL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/28 (2021.01); G02F 1/1335 (2006.01); G02F 1/139 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02B 7/28 (2013.01); G02B 5/04 (2013.01); G02F 1/139 (2013.01); G02F 1/133528 (2013.01); G02F 1/133607 (2021.01);
Abstract

An optical focus control and method use rotations of a set of shift-invariant optical elements (Risley elements) that are fairly tolerant to optical misalignments and wobble in control systems. The Risley elements can be Risley prisms, Risley gratings, or photonic crystals that impart a fixed angular offset. Aligning at least one pair of Risley elements that are individually rotated can achieve an angular correct to light received off-axis for better detection by an optical detector, improving focus control.


Find Patent Forward Citations

Lentz, Joshua. (2023). Optical focus control based on risley-like elements (U.S. Patent No. 11640043). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11640043

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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