Optical head for reproducing data from first and second optical

Details Optical head for reproducing data from first and second optical Optical head for reproducing data from first and second optical

1997-08-25

1999-06-15

Hindi, Nabil

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 94, 369 4424, G11B 700

Patent

active

059128682

ABSTRACT:
An optical head for reproducing data from first and second optical disks which are different from each other in at least one of a base material thickness and an available wavelength, includes: a first light source for emitting a first light beam, the first light beam being used for reproducing data from the first optical disk: an optical system designed to converge the first light beam onto the first optical disk in accordance with a base material thickness and an available wavelength of the first optical disk: and a second light source for emitting a second light beam, the second light beam being used for reproducing data from the second optical disk, wherein an optical path length between the second light source and the optical system is different from an optical path length between the first light source and the optical system, and wherein the optical system converges the second light beam onto the second optical disk.

REFERENCES:
patent: 4908813 (1990-03-01), Ojima et al.
patent: 5097464 (1992-03-01), Nishiuchi et al.
patent: 5148421 (1992-09-01), Satoh et al.
patent: 5235581 (1993-08-01), Miyagawa et Al.
patent: 5281797 (1994-01-01), Tatsuno et al.
patent: 5416757 (1995-05-01), Luecke et al.
patent: 5446565 (1995-08-01), Komma et al.
patent: 5485452 (1996-01-01), Maeda
patent: 5615200 (1997-03-01), Hoshino et al.
patent: 5671202 (1997-09-01), Brownstein et al.
patent: 5677903 (1997-10-01), Holtslag et al.

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