Optical information recording and/or reproducing apparatus

Details Optical information recording and/or reproducing apparatus Optical information recording and/or reproducing apparatus

1996-06-10

1998-11-10

Swann, Tod R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4437, 369 4423, 369103, 369112, G11B 700

Patent

active

058354719

ABSTRACT:
An optical information recording and/or reproducing apparatus for radiating a plurality of beams to an optical information recording medium to record information in the optical information recording and/or reproduce information recorded therein. The apparatus includes (i) an irradiation optical system, (ii) a diffraction grating for splitting a beam from the irradiation optical system into a plurality of beams, the diffraction grating having a plurality of different diffraction regions formed without overlapping with each other, the plurality of beams split by the plurality of diffraction regions being guided onto the optical information recording medium, and (iii) a detection optical system for detecting a beam from the optical information recording medium. The detection optical system includes a photodetector which includes a plurality of light receiving elements in which at least three light receiving elements are provided on a predetermined arrangement line and at least two light receiving elements are arranged so as to sandwich the arrangement line therebetween.

REFERENCES:
patent: 5231620 (1993-07-01), Ohuchida
patent: 5373492 (1994-12-01), Miyamoto et al.
patent: 5391865 (1995-02-01), Kurata et al.
patent: 5444224 (1995-08-01), Miyamoto
patent: 5475670 (1995-12-01), Hamada et al.
patent: 5511059 (1996-04-01), Brazas, Jr.
patent: 5579298 (1996-11-01), Opheij et al.
patent: 5594712 (1997-01-01), Yang

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