Optical information processing apparatus having small optical sy

Details Optical information processing apparatus having small optical sy Optical information processing apparatus having small optical sy

1995-05-23

1998-06-02

Hindi, Nabil

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

G11B 700

Patent

active

057611777

ABSTRACT:
An optical information processing apparatus includes a laser diode, a first prism or a grating for deflecting a light beam projected from the laser diode along a direction substantially perpendicular to a surface of an information recording medium and also for expanding a cross section of the light beam along one direction, an objective lens for focusing the light beam onto the surface of the information recording medium, and a second prism or a grating for expanding the cross section of the light beam along one direction.

REFERENCES:
patent: 5084783 (1992-01-01), Dewey et al.
patent: 5105410 (1992-04-01), Maeda et al.
patent: 5247508 (1993-09-01), Tanaka
patent: 5321550 (1994-06-01), Maruyama et al.
patent: 5359588 (1994-10-01), Fujita et al.
patent: 5412633 (1995-05-01), Ichikawa et al.
patent: 5477386 (1995-12-01), Okuda et al.

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