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:
Aug. 15, 1989
Filed:
Dec. 04, 1987
Applicant:
Inventors:
Donald K Wilson, West Caldwell, NJ (US);
Allan Heiney, Highland Park, NJ (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350375 ; 350376 ; 350384 ;
Abstract
A Faraday rotator having an optical element and a donut magnet of length 1.0L for generating a magnetic field along the optical axis of the optical element in order to rotate a plane of polarization of polarized light. At each end of the donut magnet of length 1.0L is a tuning magent of a length from about 0.4L to about 0.7L, with each of said tuning magnets generating a magnetic field in a direction opposite to that of the donut magnet.