Optical head actuator
A technology of actuators and optical heads, applied in the direction of configuration/installation of instruments, heads, recording/reproducing by optical methods, etc., which can solve problems such as reduced operational performance
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[0021] Referring now to the drawings, in the drawings, the same reference numerals denote the same components.
[0022] figure 2 A perspective view of the optical head actuator according to the first embodiment of the present invention is shown. image 3 Shown included in figure 2 The bottom view of the transfer device in the optical head actuator is shown, in which two inclined magnets are provided at completely opposite positions on the lower surface of the transfer device along the transverse central axis of the transfer device.
[0023] As shown in the figure, the optical head actuator according to the present invention includes: a transfer device 10 having an objective lens 11 at the center of its upper part for focusing light; and a drive coil unit wound on its outer surface.
[0024] The driving coil unit includes a focus coil 12 and two tracking coils 13. The focus coil 12 is wound on the outer surface of the transfer device 10, and at the same time, two coils PCB21 are...
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