Objective lens actuator and a disc apparatus using the same...

Details Objective lens actuator and a disc apparatus using the same... Objective lens actuator and a disc apparatus using the same...

2008-11-06

2010-12-28

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

With support

Reexamination Certificate

active

07859774

ABSTRACT:
An objective lens actuator which drives an objective lens in a focusing direction and a tracking direction, so as to focus lights on a recording surface of an optical disc, as a recording medium of information. The objective lens actuator includes a magnet, a lens holder which is configured to hold the objective lens thereon, and four pieces of tracking coils which are disposed in a line on a side surface of the lens holder for holding the objective lens thereon, facing to the magnet.

REFERENCES:
patent: 1659634 (2005-08-01), None
patent: 2001-101687 (2001-04-01), None
patent: WO 03/102929 (2003-12-01), None

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