Optical pickup system capable of selectively reading a multiple

Details Optical pickup system capable of selectively reading a multiple Optical pickup system capable of selectively reading a multiple

1997-07-22

1999-11-30

Huber, Paul W.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369118, G11B 700

Patent

active

059954736

ABSTRACT:
An optical pickup system for selectively detects an information signal from, e.g., a pair of optical disks loaded on a disk tray, wherein each of the optical disks may have a different thickness. The optical pickup system includes a light source for generating a first and a second light beams having a different wavelength from each other, a first wavelength .lambda..sub.1, and a second wavelength .lambda..sub.2, and a beam splitter provided with a first and a second parts, wherein the first light beam impinging onto the first part is partially reflected to the first optical disk, and the second light beam impinging onto the second part is partially reflected to the second optical disk, thereby allowing the optical pickup system to detect an information signal from the respective optical disks.

REFERENCES:
patent: 5526338 (1996-06-01), Hasman et al.

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