Solid immersion lens, focusing lens using solid immersion...

Details Solid immersion lens, focusing lens using solid immersion... Solid immersion lens, focusing lens using solid immersion...

2005-08-17

2009-06-23

Agustin, Peter Vincent (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07551540

ABSTRACT:
A convex portion is provided on the objective side of a solid immersion lens so as to protrude toward an optical recording medium and a difference-in-level portion or a concave portion is provided at least on a part of this convex portion. Then, there are provided a solid immersion lens for satisfactorily holding the bonding state of a lens holding member, a focusing lens using this solid immersion lens, an optical pickup apparatus, an optical recording and reproducing apparatus and a method of forming a solid immersion lens.

REFERENCES:
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patent: 5936928 (1999-08-01), Jain et al.
patent: 6091694 (2000-07-01), Spath
patent: 6594086 (2003-07-01), Pakdaman et al.
patent: 6671246 (2003-12-01), Matsuo
patent: 2005/0232120 (2005-10-01), Shinoda

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