90°-bent metallic waveguide having tapered c-shaped...

Details 90°-bent metallic waveguide having tapered c-shaped... 90°-bent metallic waveguide having tapered c-shaped...

2011-05-17

2011-05-17

Edun, Muhammad N. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S126000, C360S125310, C385S129000

Reexamination Certificate

active

07944782

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.

REFERENCES:
patent: 7027700 (2006-04-01), Challener
patent: 7599277 (2009-10-01), Kato et al.

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