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:
Sep. 26, 2006
Filed:
Jun. 26, 2003
Yoon Shik Hong, Kyungki-do, KR;
Young Gyu Lee, Kyungki-do, KR;
Sung Cheon Jung, Kyungki-do, KR;
Sang Kee Yoon, Kyungki-do, KR;
Hyun Kee Lee, Kyungki-do, KR;
Suk Kee Hong, Seoul, KR;
Joon Seok Kang, Kyungki-do, KR;
Jung Hyun Lee, Kyungki-do, KR;
Yoon Shik Hong, Kyungki-do, KR;
Young Gyu Lee, Kyungki-do, KR;
Sung Cheon Jung, Kyungki-do, KR;
Sang Kee Yoon, Kyungki-do, KR;
Hyun Kee Lee, Kyungki-do, KR;
Suk Kee Hong, Seoul, KR;
Joon Seok Kang, Kyungki-do, KR;
Jung Hyun Lee, Kyungki-do, KR;
Samsung Electro-Mechanics Co., LTD, Kyungki-do, KR;
Abstract
An MEMS variable optical attenuator includes a substrate having a planar surface, a micro-electric actuator arranged on the planar surface of the substrate, a pair of coaxially aligned optical waveguides having a receiving end and a transmitting end, respectively, and an optical shutter movable to a predetermined position between the receiving end and the transmitting end of the optical waveguides, and driven by the micro-electric actuator. A surface layer is formed on the optical shutter, has reflectivity less than 80% so as to allow incident light beams to partially transmit thereinto, and further has a sufficient light extinction ratio, thereby extinguishing the partially transmitted light beams therein.