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. 05, 1988
Filed:
May. 12, 1986
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350377 ; 350 9613 ; 350 9618 ; 350375 ; 350378 ; 350416 ;
Abstract
A focusing, adjustable device for rotating the plane of polarization of linearly polarized light in the form of a ball lens made from magnetic crystalline material preferentially magnetized in the direction of light transmission, where the ball lens consists of two domes of magnetic garnet material whose basal planes are oriented parallel to one antoher and perpendicular to the direction of light transmission, with a spherical member between the domes consisting of optically transparent non-magnetic garnet material.