Optical pickup actuator for an optical disc player having a plur

Details Optical pickup actuator for an optical disc player having a plur Optical pickup actuator for an optical disc player having a plur

1994-11-28

1996-10-01

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4416, 359813, G11B 709

Patent

active

055616488

ABSTRACT:
An optical pickup actuator having a small size with a simple structure without crosstalks when playing back is disclosed. The optical pickup actuator includes an object lens holder having an object lens and for performing a focusing operation moving upwards and downwards and for performing a tracking operation moving frontwards and rearwards, a base plate having a hole at the center thereof for passing a laser beam generated by a laser diode, and a pair of flat plates for supporting an object lens holder and for allowing object lens holder to move upwards, downwards, frontwards and rearwards. A crosstalk phenomenon which is caused by an interference of reproduction signals can be suppressed during the tracking and focusing operations.

REFERENCES:
patent: 4643522 (1987-02-01), Takashima
patent: 4887888 (1989-12-01), Nose
patent: 5144607 (1992-09-01), Ishida et al.

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