Patent ID: 8111594
Filing Date: 2012-02-07
Classification: G02B,G11B

Abstract:
1. An optical disk drive formed by a connection between a pickup and a drive unit, each of which is produced individually, by a connector, wherein the pickup includes an aberration correction liquid crystal element, a drive use circuit driving the aberration correction liquid crystal element, and a photo acceptance unit receiving a light beam from an optical disk and outputting a detection signal to said drive unit through the connector, wherein the drive unit includes a control use circuit, a disk motor of the optical disk, and an aberration correction data operation unit which calculates aberration correction data by a control of the control use circuit, said drive use circuit of the pickup includes an astigmatic data storage which stores an astigmatic data of a static astigmatism peculiarly provided in an optical system in said pickup and measured in manufacturing of said pickup, wherein, after connecting said pickup and said drive unit with the connector,