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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.:

US 7944782 B1

PDFFull Text
Date of Patent:
May. 17, 2011

Filed:

Oct. 25, 2007

90°-bent metallic waveguide having tapered c-shaped aperture, method of fabricating the waveguide, light delivery module including the waveguide, and heat assisted magnetic recording head having the waveguide

Applicants:

Eun-hyoung Cho, Seoul, KR;

Sung-hoon Choa, Seoul, KR;

Jin-seung Sohn, Seoul, KR;

Sung-dong Suh, Seoul, KR;

Inventors:

Eun-hyoung Cho, Seoul, KR;

Sung-hoon Choa, Seoul, KR;

Jin-seung Sohn, Seoul, KR;

Sung-dong Suh, Seoul, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Muhammad N Edun

Int. Cl.
CPC ...
G11B 7/00 (2006.01); G02B 6/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A metallic wave guide and a light delivery module are provided. The metallic waveguide includes a metal body formed of a conductive metal and having an aperture formed therethrough, the aperture having input and output ends. The aperture has a bent portion for changing a light traveling direction between the input and output ends, and a tapered portion between the bent portion and the output end. The tapered portion has a width that is gradually reduced toward the output end, and the aperture is formed in a C-shape by a ridge formed on an inner surface of the metal body.

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