Optical pickup head

Details Optical pickup head Optical pickup head

1991-03-08

1994-02-01

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369103, 369112, G11B 712

Patent

active

052837718

ABSTRACT:
In an optical pickup head, a light source emits a light beam. A first reflecting section reflects the light beam emitted from the light source and changes a direction of a travel of the light beam emitted from the light source. A second reflecting section reflects the light beam and changes a direction of a travel of the light beam after the light beam is reflected by the first reflecting section. The light beam reflected by the second reflecting section is focused on the optical recording medium. The light beam is reflected and diffracted by the optical recording medium. The light beam reflected and diffracted by the optical recording medium is detected. A common support member is formed with both the first and second reflecting sections.

REFERENCES:
patent: 4644516 (1987-02-01), Musha
patent: 4665310 (1987-05-01), Heemskerk
patent: 4757197 (1988-07-01), Lee
patent: 4789977 (1988-12-01), Oudenhuysen et al.
patent: 4929823 (1990-05-01), Kato et al.
patent: 5005162 (1991-04-01), Mitsumori et al.
patent: 5082339 (1992-01-01), Linnebach
Patent Abstracts of Japan, vol. 9, No. 314, P412, Dec. 10, 1985, & JP60143453.

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