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:
Apr. 07, 2020
Filed:
Feb. 01, 2019
Applicant:
Ball Aerospace & Technologies Corp., Boulder, CO (US);
Inventors:
Assignee:
Ball Aerospace & Technologies Corp., Boulder, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02 (2006.01); G01S 17/95 (2006.01);
U.S. Cl.
CPC ...
G01S 17/95 (2013.01); G01B 9/02015 (2013.01);
Abstract
An interferometer is provided. The interferometer includes a multifaceted beamsplitter. Angles of incidence between beams entering the beamsplitter and a beamsplitting surface of the beamsplitter are less than 45 degrees. The arms of the interferometer feature a refractive compensator or a catseye optical configuration to provide an optical path length difference for rays that is the same at any location along the effective aperture of the interferometer. A detector assembly can be included with at least four detectors that lie in a plane and that receive light along paths that are orthogonal to that plane.