Optical: systems and elements – Lens – With support
Reexamination Certificate
2006-03-22
2008-11-18
Hasan, Mohammed (Department: 2873)
Optical: systems and elements
Lens
With support
C359S813000, C359S823000
Reexamination Certificate
active
07453656
ABSTRACT:
An optical recording and/or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and/or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.
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KIPO Office Action Dated Jul. 28, 2006.
Jang Dae-jong
Lee Young-bin
Lee Young-won
Ryoo Byung-ryul
Seong Pyong-yong
Hasan Mohammed
Staas & Halsey , LLP
Toshiba Samsung Storage Technology Korea Corporation
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