CD ROM head with VCSEL or VCSEL array

Details CD ROM head with VCSEL or VCSEL array CD ROM head with VCSEL or VCSEL array

1996-01-04

1998-05-26

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4423, 369121, G11B 7095

Patent

active

057577412

ABSTRACT:
An optical pick-up head for reading information from a data storage medium, the pick-up head including a VCSEL for emitting a beam of light with a focusing element for directing the beam of light onto the data storage medium and a light receiving element for receiving light reflected from the data storage medium and tracking element for positioning the beam.

REFERENCES:
patent: 5483511 (1996-01-01), Jewell et al.
patent: 5526182 (1996-06-01), Jewell et al.
patent: 5621716 (1997-04-01), Kojima et al.

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