Optical information recording/reproducing apparatus including a

Details Optical information recording/reproducing apparatus including a Optical information recording/reproducing apparatus including a

1997-11-12

1999-07-13

Huber, Paul W.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369112, G11B 700

Patent

active

059236310

ABSTRACT:
In an optical information recording and/or reproducing apparatus, a light beam from an irradiation optical system is split into a plurality of beams by a diffraction grating. The plurality of light beams split by the diffraction grating are caused to irradiate an optical information recording medium. A light beam from the optical information recording medium is detected by a detection optical system. A beam axis adjusting mechanism is provided in an optical path between the irradiation optical system and the diffraction grating so as to adjust a position of a beam incident to the diffraction grating.

REFERENCES:
patent: 5065380 (1991-11-01), Yokota
patent: 5128914 (1992-07-01), Kurata et al.
patent: 5373492 (1994-12-01), Miyamoto et al.
patent: 5404344 (1995-04-01), Imada et al.
patent: 5444224 (1995-08-01), Miyamoto

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