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OwnerHideki Nakata, Hironori Tomita +1inventors
InventorsHideki Nakata, Hironori Tomita, Takeshi Ohta
Estimating the term…
An optical head is provided with a semiconductor laser, an objective lens for gathering a beam from the semiconductor laser on an optical information recording medium, an objective lens actuator for driving the objective lens along a focusing direction and a tracking direction of the optical information recording medium, a metal-made optical base for holding the semiconductor laser and the objective lens actuator, and a feed screw and a guide shaft for guiding the optical base along the radial direction of the optical information recording medium. The optical base and the feed screw or the guide shaft are held in contact with sliding members made of a resin or a ceramic and having a heat conductivity. Thus, even if burrs are formed at slide holes during the molding of the optical base, a good slidability can be ensured for the feed screw and the guide shaft, and heat produced by the semiconductor laser can be radiated via the sliding members.
An optical head, comprising:
An optical information recording medium driving device, comprising
Dependencies are inferred from the claim text.