| 摘要 |
In an optical pickup driving mechanism using a stepping motor, a feeding operation of an optical pickup can be stabilized even in a broad operating temperature environment. In executing an optical axis correction feeding operation in response to an amount of lens shift of an objective lens 5 of an optical pickup 3 , a stepping motor controlling portion 23 drives a stepping motor 4 in a microstep drive mode to move a base 7 of the optical pickup 3 in a radial direction of an optical disk 1 . At this time, a temperature sensor 17 senses an in-equipment temperature, and a driving current supply time deciding portion 31 sets a supply time width of a pulse driving current whose envelope is like a sinusoidal wave to a supply time width as a fixed value, which is longer than that at an ordinary time, or a supply time width, which is multiplied by a coefficient corresponding to the in-equipment temperature, to increase a current supply time of the driving current when the sensed in-equipment temperature is equal to or lower than a predetermined temperature.
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