Optical: systems and elements – Lens – Including a nonspherical surface
Reexamination Certificate
2006-09-12
2006-09-12
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Lens
Including a nonspherical surface
C369S112230
Reexamination Certificate
active
07106524
ABSTRACT:
An optical pickup apparatus for recording or reproducing data on a signal recording surface of a high-density optical medium that has the signal recording surface and at least one substrate includes an optical module for generating and emitting beams and receiving reflected beams from an optical medium and a solid immersion lens (SIL) arranged on an optical path between the optical module and the optical medium, having a first surface being planar and facing the substrate of the optical medium, and a second surface being aspherical and facing the optical module, so that the SIL may be nearly in contact with the substrate of the optical medium.
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Harrington Alicia M
Marshall & Gerstein & Borun LLP
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