Optical information processing apparatus and optical pickup ther

Details Optical information processing apparatus and optical pickup ther Optical information processing apparatus and optical pickup ther

1990-07-12

1993-03-16

Chin, Tommy P.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369112, G11B 1114

Patent

active

051950707

ABSTRACT:
Using an optical pickup, recording/reproducing of information is performed by irradiating light beams to an optical recording medium to form light spots. The optical pickup includes means for generating plural light beams, an optical waveguide for guiding the plural light beams in a row into a flat space, and a light deflecting element for deflecting the light beams, which run in the optical waveguide, within a plane formed by a vector perpendicular to a plane of the optical waveguide and a directional vector of the light beams. The light deflecting element deflects the plural light spots, which are to be arranged in a row, in a direction perpendicular to the light spot row to perform micro seek.

REFERENCES:
patent: 3655261 (1972-04-01), Chang
patent: 4737946 (1988-04-01), Yamashita et al.
patent: 4887255 (1989-12-01), Handa et al.
patent: 4910723 (1990-03-01), Yamamoto
patent: 4991160 (1991-02-01), Premji
Efficient Accousto Optical Coupling of Guided to Substrate Modes in a Combined Acoustical/Optical Channel Guide, V. Hinkov, U. Nolte and W. Sohler, pp. 138-141.

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