Optical disc drive with interconnecting hoods

Details Optical disc drive with interconnecting hoods Optical disc drive with interconnecting hoods

1992-05-27

1993-11-02

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 4414, 369244215, 359811, G11B 700, G11B 708, G11B 712

Patent

active

052589714

ABSTRACT:
An optical disc drive device includes an optical unit (10) and a movable pickup (11). The optical unit is fixedly provided on a chassis and has a light source for radiating a light beam towards an optical disc (13) and a light receiving section for receiving a return light beam reflected from the optical disc. The movable pickup is supported on the chassis for movement along the radius of the optical disc and has an object lens (22) for converging the light beam radiated from the light source to the surface of the optical disc and a driving unit for driving the object lens at least in a direction along its optical axis. The optical disc drive device further includes a first light incident-light outgoing section (1) for the light beam provided on the optical unit and a second light incident-light outgoing section (2) for the light beam provided on the movable pickup. The first and the second hoods (3,4) are fitted one into the other when the movable pickup approaches the optical unit.

REFERENCES:
patent: 4958335 (1990-09-01), Takeda et al.
patent: 5072436 (1991-12-01), Honda
patent: 5097456 (1992-03-01), Tanoshima et al.
patent: 5159587 (1992-10-01), Kibune
Patent Abstracts of Japan, vol. 13, No. 409, Sep. 11, 1989.
Patent Abstracts of Japan, vol. 11, No. 29, Jan. 28, 1987, Kokai No. 61-198-443.
Patent Abstracts of Japan, vol. 11, No. 29, Jan. 28, 1997, Kokai No. 61-194-444.

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