Optical recording and reproducing apparatus

Details Optical recording and reproducing apparatus Optical recording and reproducing apparatus

G - Physics

11

B

352/32.1

G11B 7/00 (2006.01) G11B 7/08 (2006.01) G11B 7/09 (2006.01) G11B 7/135 (2006.01)

Patent

CA 2013836

An optical recording and reproducing apparatus for optically recording and reproducing information on and from a disk comprises: a light source for generating a Parallel beam; a movable optical system adapted to condense the parallel beam from the light source on the disk, to split the beam into two different beams, and to move in the radial direction of the disk; a split-beam detecting device having two light receiving surfaces which receive part of the two different beams obtained in the movable optical system; and a control device adapted to effect tracking control by moving the movable optical system in the radial direction of the disk in accordance with respective detection signals output from the two light receiving surfaces.

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