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. 23, 2013
Filed:
Dec. 14, 2011
Applicant:
Robert D. Stultz, Cypress, CA (US);
Inventor:
Robert D. Stultz, Cypress, CA (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/22 (2006.01); G02F 1/03 (2006.01); H01S 3/106 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to an embodiment of the disclosure, a multi-stage Lyot filter comprises a plurality of prisms, a polarizing block, and a non-rotating, single-adjustment birefringent element. Each of the prisms is configured to receive light and to reflect the light. The polarizing block is configured to provide polarization discrimination of the light. The birefringent element is configured to tune the Lyot filter. The prisms are further configured to pass the light through the birefringent element multiple times.