Invention Grant
US07810111B2 Optical pick-up 有权
光学拾音

Optical pick-up
Abstract:
An optical pickup that can incline an objective lens in the same direction as that of a bend of an optical disc is provided.The optical pickup includes a lens holder that holds an objective lens, focusing coils attached to the lens holder, a yoke to which magnets are attached, and inner yokes disposed opposite to the magnets via the focusing coils, and the optical pickup is structured so that a cross-sectional area of the inner yoke disposed toward the outer periphery of the optical disc is greater than a cross-sectional area of the inner yoke disposed on the inner periphery of the optical disc.
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