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:
Nov. 30, 2004
Filed:
May. 03, 2002
Chun Yu Lee, Tu-Chen, TW;
Hon Hai Precision Ind. Co., LTD, Taipei Hsien, TW;
Abstract
An optical isolator ( ) includes a first optical collimator ( ), an optical isolating unit ( ), a second optical collimator ( ), and a tubular housing ( ). The first optical collimator includes an input optical fiber and a first collimating lens ( ). The second optical collimator includes an output optical fiber and a second collimating lens ( ). The optical isolating unit includes an optical rotator ( ), first and second birefringent wedges ( ), a pair of beam displacers ( ), and a magnetic tube ( ). The beam displacers are fixed to respective opposite ends of the optical rotator. The first and second birefringent wedges are respectively fixed to the first and second collimating lenses. The magnetic tube encloses protruding portions of the first and second collimating lenses, the first and second birefringent wedges, the beam displacers and the optical rotator therein. Each beam displacer effectively eliminates any undesired displacement of a light beam.