Objective lens drive device and optical pickup
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United States of America Patent
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Jun 3, 2014
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N/A
app pub date -
Dec 14, 2010
filing date -
Dec 18, 2009
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Abstract
In an optical pickup equipped with a semiconductor laser, electro-optical components such as a lens, and an objective lens drive device, the objective lens drive device includes objective lenses, a holder holding the objective lenses, a focusing coil, and tracking coils. The focusing coil is wound in parallel to the optical surface of the objective lens, and formed in a parallelogram shape having inclined portions provided near the tracking coils. The two tracking coils are placed on diagonal portions of the lens holder.
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